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Author Topic: Gil's Robotron Build  (Read 3665 times)

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Gilrock

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Gil's Robotron Build
« on: February 12, 2019, 07:29:40 pm »
After I recently got back into working on my Mame Cabinet and following the forum I was looking at the high score competition they do here.  That led me to look at the older ones and I stumbled on the Robotron competition from a year ago and I was like holy cow I didn't even know those scores were possible.  I started playing it again and I've now logged 18+ hours on the game.  I decided Robotron is definitely one of my favorite games so I wanted to build a cabinet dedicated to Robotron but I'll make the control panel removeable so I can also make a Defender or other games panel down the road.  I've ordered several items to get started including a JROK SYSFPGA Williams card, Robotron control panel artwork and marquee.  I've ordered 4" Wico joysticks from Arcade shop.  Also my first item arrived today...a screen printed glass bezel.


Gilrock

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Re: Gil's Robotron Build
« Reply #1 on: February 12, 2019, 07:54:13 pm »
So these are some of the photos I've been looking at trying to decide shape and color scheme.  For all I know these might be from someone here.  I kinda like the way it curves under the control panel in the first 2 photos and I'm undecided on color scheme.  I really like the black/red look of the middle photo.  I find so many photos when searching I'm not sure which ones are original cabinets or clones like I'm making.


Zeosstud

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Re: Gil's Robotron Build
« Reply #2 on: February 14, 2019, 06:51:06 pm »
I believe in the US, the one on the Right is how it showed up in our Arcades..  All the best with your project, I completely understand where your coming from.  I just built myself a Pedestal with the Jrok board in it.. Like just got the custom marquee today, still waiting on the custom control panel overlay..

- Zeosstud
Rodney Butler


Gilrock

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Re: Gil's Robotron Build
« Reply #3 on: February 14, 2019, 08:40:24 pm »
I'm going to go with the Robotron-1 version as shown in this link:


Gilrock

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Re: Gil's Robotron Build
« Reply #4 on: February 15, 2019, 10:15:34 am »
Some more toys arrived.  Last night I cut out a piece of ABS for a mounting plate and grabbed a 5V Meanwell power supply I had lying around.  Seems like overkill to use a power supply capable of 60 amps for a board that only needs 400 mA but I had a box of 12 supplies I've accumulated for the Christmas light show I run.  I also got the control panel artwork and marquee and Wico style joysticks along with several other odds and ends.





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Re: Gil's Robotron Build
« Reply #5 on: February 15, 2019, 10:22:13 am »
Robotron is a game I want to own someday. I will be watching to see how this one turns out.

Gilrock

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Re: Gil's Robotron Build
« Reply #6 on: February 15, 2019, 02:50:34 pm »
Well the board works.  I temporary hooked up a joystick and 2 buttons to get through the Setup Menu.  I mentioned this in my other cabinet build thread but I had bought a Vision Pro 19" LCD because ArcadeShop listed it as what is used as a replacement in old arcades.  So it was already on order when I started reading that I really should use a CRT.  So I've got the LCD working but I'll be trying to find either an arcade CRT or a good TV to use.  I got a 20" Magnavox TV but it only has composite so I've been told I really would need to modify it to accept RGBS.  After I got the LCD working I switched over to trying out the JROK RGB to NTSC encoder with its composite output but I'm getting nothing but some unregcognizable flickering on the TV.  I know the TV input works with my Nintendo64.  When I first got the LCD working I could not get the scanline emulation setting to work then I finally noticed the VGA jumper on the board.  I only mention it to point out I did not have the jumper in VGA mode when trying to get the TV working I just moved it to VGA mode when I switched back to the LCD.


opt2not

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Re: Gil's Robotron Build
« Reply #7 on: February 15, 2019, 03:16:16 pm »
Nice, a Robotron build!  :applaud:
Great choice on the JROK board.  I've installed one in my original cab, and it's been solid for years now.

Too bad about the LCD, but since you already had it on order might as well use it.  You just might not get the quick response of a CRT, something that Robotron really needs, but it'll get you by.

As for painting, the black/red one you've mentioned is actually the Euro version of Robotron, while the other two I believe were state-side. The lighter gray (it's actually pewter) is the more common cabinet, and is also the same for the cabaret/mini version (that's the cabinet I own).

Looking forward to your progress on this one. Robotron is one of the greatest games ever made!

Gilrock

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Re: Gil's Robotron Build
« Reply #8 on: February 15, 2019, 03:42:53 pm »
Thanks opt2not I've looked over the thread where you restored that cabinet and I saw your comment about the black/red scheme.  I almost decided on it but I think I'm going with the lighter grey.  I agree its one of the greatest games.  Seeing your high score when I looked at the old thread from last year is what prompted me to spend more time trying to get better.  Are there sign-ups for your Robotron training at ZapCon?  LOL....I hear there's a line.

Gilrock

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Re: Gil's Robotron Build
« Reply #9 on: February 15, 2019, 03:46:55 pm »
Ok I pulled out the voltmeter and checked continuity and my sync line was open.  The encoder board came with these super tiny wires that break easy.  So I got the TV working but its not that great.  I know its only composite but the Nintendo64 seemed to be looking a little nicer plus the image seemed aligned on the Nintendo whereas this one is off the screen a bit and I don't have a remote to access any adjustments.


opt2not

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Re: Gil's Robotron Build
« Reply #10 on: February 15, 2019, 03:50:19 pm »
Hehe, yeah man, I'll show you some moves at Zapcon this year. ;)

Last year they had an original and a repro cabinet on the floor.  I didn't play much of the repro cab because it didn't feel as sturdy as the original. Perhaps a combination of non-original controls, and the type of wood they used for the cab. 
I'm trying to get Yots to pitch a Robotron competition this year. Last year there were Galaga and Cyberball tourneys (I entered the Cyberball one, but didn't do Galaga). Robotron would be a fun one, especially if it's set for tourney settings -- 5 lives, no extras, level 10 difficulty. 

Gilrock

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Re: Gil's Robotron Build
« Reply #11 on: February 15, 2019, 04:14:49 pm »
Yeah well I'm still at only 238,000 for my high score since I started playing again a few weeks ago.  One of the biggest things that gets me is trying to handle the shots from the Brains.  And the tank wave can go really bad...sometimes I breeze through it then other times I lose all my guys.  I need to see if I can find an original cab somewhere near me so I can rediscover how the joysticks feel.  The Wico joysticks I got from Arcadeshop feel really stiff but of course I don't have them mounted in a panel yet.  I also want to see how much they are supposed to stick up through the panel.  I ordered the metal blank for a control panel but not sure if I'm going to use it on this cab or just get measurements from it to make one out of wood.

nexusmtz

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Re: Gil's Robotron Build
« Reply #12 on: February 15, 2019, 10:28:24 pm »
tourney settings -- 5 lives, no extras, level 10 difficulty.
Tried that. I think I lasted longer on prom night. I'll have to see that demo if I make it out this year.

Gilrock

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Re: Gil's Robotron Build
« Reply #13 on: February 16, 2019, 11:25:00 am »
I got part of the cabinet designed in SketchUp yesterday.  I found build plans at classicarcadecabinets.com but it listed the accuracy at 88%.  I also tried importing a cabinet from the SketchUp Warehouse but there were parts of it that didn't look correct like the control panel was parallel to the floor.  So I ended up placing an image of the Robotron-1 cabinet profile image into SketchUp and I matched it's height to the cabinet that I had imported.  Then I traced the shape and extruded into a 3/4" piece.  After my parts arrived I measured the dimensions to try to figure out the width I needed to use.  The control panel blank = 24 5/16",  Marquee = 24 11/32", Bezel = 24 1/4".  So I'm still trying to decide what the internal width should be.  I'm not sure how much tolerance I should leave and whether the glass bezel needs plastic trim on the sides.  I have some leftover trim from the pinball project and it measures about 3/64" thick so putting it on each side adds 3/32".  So if I went with 24 3/8" and used trim on the bezel it would only leave like 1/64" spare on each side to slide those parts in between the panel sides and 1/32" spare on each side for the control panel.  That just seems cutting it kinda tight so I'm curious what you other builders do when deciding something like that.




Gilrock

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Re: Gil's Robotron Build
« Reply #14 on: February 16, 2019, 08:04:06 pm »
I've been searching all over finding photos that show how these things were built.  I ran across this speaker panel image.  I can't seem to find where I could buy a trim piece to hold the marquee like that.  It gives it a nice look since you can screw it to the wood on that lip.

Gilrock

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Re: Gil's Robotron Build
« Reply #15 on: February 17, 2019, 08:39:38 pm »
I finished enough of the SketchUp design I can start doing some cutting.  I ended up buying a used 19" Wells Gardner arcade monitor so I'll wait till that gets here to make sure it fits.  So I'll start on the control panel first.  I'll share the SketchUp design file once I finalize everything.


Arroyo

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Re: Gil's Robotron Build
« Reply #16 on: February 17, 2019, 11:34:00 pm »
Always one of my favorite cabs.  Great choice on the sides, and nice SketchUp work!

Gilrock

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Re: Gil's Robotron Build
« Reply #17 on: February 17, 2019, 11:48:08 pm »
Always one of my favorite cabs.  Great choice on the sides, and nice SketchUp work!

Thanks....I think it took me an hour to figure out how to project the material onto the control panel's curved surface...

Arroyo

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Re: Gil's Robotron Build
« Reply #18 on: February 17, 2019, 11:49:42 pm »
Always one of my favorite cabs.  Great choice on the sides, and nice SketchUp work!

Thanks....I think it took me an hour to figure out how to project the material onto the control panel's curved surface...

I remember scratching my head on that one for quite awhile as well.  Nice work.

Gilrock

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Re: Gil's Robotron Build
« Reply #19 on: February 18, 2019, 12:10:18 am »
Got the top piece of the control panel designed and cut tonight.


Gilrock

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Re: Gil's Robotron Build
« Reply #20 on: February 19, 2019, 11:42:56 pm »
Took me the entire afternoon/evening to make these metal plates.  I don't have anything that can precisely cut metal so these were made by hand with a jigsaw, drill press, and belt sander.  At first I tried to cut the center hole with a jigsaw and realized that was going to look terrible.  So I googled for ways to cut a hole in thin metal and found a guy cutting a hole in 1/4" steel using a normal hole saw.  The key was keeping it lubricated when it begins to smoke.  So I ran to the store and found a Milwaukee hole saw with a thin wall and I used machine oil to keep it cool and it cut the holes out really nice.  The other thing I messed up on the first attempt were the 4 holes.  I marked lines with calipers and punched marks but it didn't quite line up good.  So this time I went back into Aspire and design a couple jigs.  The jig on the right was used to put the plate in the pocket and flip it over and drill the holes.  Then the one on the left with the hole I used to attach the plate and then round the corners with the belt sander.   Then I just had to countersink the holes.  The pockets were cut with a CNC and still there were a couple edges where I could feel the metal lip.  I've had to spend time trying to thin the metal plates on a couple of the edges.  I assume it needs to be pretty close to perfect flat to not show through the overlay.


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Re: Gil's Robotron Build
« Reply #21 on: February 20, 2019, 03:11:10 am »
Looking good!

You can do almost all metalwork with a file and infinite patience, but a hole saw and a belt sander drops the required patience factor down to something more plausibly realistic.  I love to see people just diving in and doing it with what they've got, instead of thinking that it can't be done because they don't have a full machine shop.   :applaud:

(Also, I dig your project.)

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Re: Gil's Robotron Build
« Reply #22 on: February 20, 2019, 12:14:23 pm »
Is the circle in the middle for the dust washer?

Man I wish I had a CNC

Gilrock

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Re: Gil's Robotron Build
« Reply #23 on: February 20, 2019, 12:30:44 pm »
Is the circle in the middle for the dust washer?

Man I wish I had a CNC

Yes.  I wouldn't have even known about it but from all my searching that is the way it appeared the original control panel was designed.  Yeah I know I'm fortunate to have the CNC.  I think I got it for a lame reason like cutting out coro shapes for Christmas decorations but I always wanted one and knew I'd find other uses for it.  I used the CNC to make the jigs for helping with the hole alignment and corner rounding.  I admire the builders that get those tasks done with less.

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Re: Gil's Robotron Build
« Reply #24 on: February 20, 2019, 01:47:26 pm »
That project is turning out quite nicely :applaud:... A few years back I sold all my vintage equipment and downsized into a tiny little home shop, It's not real easy to be creative with less.

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Re: Gil's Robotron Build
« Reply #25 on: February 20, 2019, 02:44:37 pm »
Excellent work so far. That metal plating turned out great!  :cheers:

Gilrock

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Re: Gil's Robotron Build
« Reply #26 on: February 20, 2019, 06:51:42 pm »
Well now I got an error to fix.  Luckily it just a little bit of plywood with not anything too critical invested into it except the time to create a 14 degree miter joint.  I went to glue the top piece to the 2 bottom parts I had glued together and I'm like how the heck are they that far off I cut the darn things with the CNC.  Then it hit me the same thing had happened with the jig I had cut and these were done before that.  Instead of just cutting these simple rectangles on the table saw I said I'll get fancy and let the CNC cut them.  Well when I jumped into the design tool, dropped down a couple rectangles and created the toolpath I didn't notice it was still on an 1/8" end mill bit that I had used last for a small hole instead of a 1/4" end mill.  So the toolpath I created expected an 1/8" bit in the CNC and I was using a 1/4" bit so the board ended up a 1/4" short.  Well back to the store for another small piece of plywood.


Gilrock

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Re: Gil's Robotron Build
« Reply #27 on: February 21, 2019, 08:40:40 am »
Well no new photos to post yet.  I got the boards cut again properly and the control panel is glued together.  I started rounding over the corners for a curve.  It was difficult trying to route the miter joint with the boards held at an angle so the joints have some small gaps.  I know the joints are strong though because I tried to break the one apart I had glued yesterday that turned out too short and I literally stood on top and jumped and it wouldn't budge.  Had to grab a maul to break the joint.  So where I rounded the curves into the panel there are some thin gaps I need to fill and sand down.  In some spots there is no gap and other spots its so thin I'm not sure I can squeeze filler in there so I'm thinking it might be better to go ahead and just run a groove through there with the table saw so that the filler is thick enough to hold.  Seems like I see people using bondo for this.  I've never used it before so gotta track down where to get it and try it out.  I thought that was mainly auto body repair stuff.

Gilrock

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Re: Gil's Robotron Build
« Reply #28 on: February 22, 2019, 11:40:53 pm »
Got the control panel almost ready to be wired up.

This is before I put a coat of paint on it.  Mainly just to make it black since anything visible is going to be covered by the overlay.




A few things I would do different so you can learn from my mistakes.  Don't try to make the holes too close to the exact size....even a CNC can be off a mm depending on bit wear etc.  I tried to cut it too tight and the button holes were about 1.5mm too small.  Second error is forgetting to test fit the buttons before putting on the overlay.  To fix the button this works nicely.  Grab a scrap piece of wood and drill your hole in it.  I like to use a Forstner style bit for this.  Then secure the template hole in place and use it as a guide to widen the hole.




I installed the joysticks and buttons to see how it looks.  I'm happy with it.


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Re: Gil's Robotron Build
« Reply #29 on: February 23, 2019, 12:46:52 am »
I love the crisp look of that artwork!  You've got some serious skills man, hand forging those steel plates?  Slick!

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Re: Gil's Robotron Build
« Reply #30 on: February 23, 2019, 09:02:59 am »
Great work!  I'm going to the top to re-read slowly..  I got caught up looking at the pictures :)
My Arcade Build and other projects here:
https://bperkins.wordpress.com/

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Re: Gil's Robotron Build
« Reply #31 on: February 23, 2019, 09:29:17 am »
Nice. :applaud:

Gilrock

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Re: Gil's Robotron Build
« Reply #32 on: February 24, 2019, 02:08:03 pm »
I love the crisp look of that artwork!  You've got some serious skills man, hand forging those steel plates?  Slick!

Yeah I didn't use my artwork when I was buying stuff from ArcadeShop I noticed they sold the Robotron overlay so I got the one I believe they sell for real cabinet restores.  It was really a pain aligning it though because it was already cut to the exact size.

Gilrock

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Re: Gil's Robotron Build
« Reply #33 on: February 25, 2019, 09:35:19 pm »
I acquired a Wells Gardner K7000 CRT for this build.  It arrived this afternoon and it appears I guessed all the wiring correctly.  I notice when there is a lot of dark background it seems to have a bit of a venetian blind effect with maybe a green tint.  I haven't tried to adjust anything cause HORZ/VERT position and size are about all I know currently.








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Re: Gil's Robotron Build
« Reply #34 on: February 25, 2019, 11:22:23 pm »
Man, you are doing this build right!

Love the K7000ís. Next to the G07ís, this monitor is very serviceable. The colour looks like a purity issue in the title screen shot. The lower right seems off to me.
Could use a degauss, but if the monitorís degauss isnít working well enough, a degaussing wand might do the trick. Or you can try adjusting the purity rings.
As for the bleeding greens, you might want to adjust the R G B balance pots on the neck board.
Other than that, wouldnít hurt to throw some new caps on the chassis.
« Last Edit: February 25, 2019, 11:23:58 pm by opt2not »

Gilrock

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Re: Gil's Robotron Build
« Reply #35 on: February 25, 2019, 11:48:59 pm »
Yeah I noticed the bottom right corner after I posted and ran the color screen test and it had blue all over the red.  I messaged the guy I bought it from and got some tips.  Degaussing was one thing but he noticed I had it on the pinball machine.  I moved the monitor to the floor and 80% of the blue went away and now its just a bit in the corner.  I ordered a degaussing coil already.  If the monitor had it built in I didn't know it because I googled for degaussing a K7000 and the first video I watched he used a coil so I bought one...lol.  The ebay ad said the "chassis is rebuilt" so I didn't know if that meant it was recapped or just something physical was rebuilt.  It looks really clean and in good shape.

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Re: Gil's Robotron Build
« Reply #36 on: February 26, 2019, 12:27:30 am »
Yeah one of the monitor gurus here can probably explain it better, but from my knowledge that black wiring going around the back of the tube that looks like itís wrapped in electrical tape is the deguasser. Normally the monitor deguasses automatically from a cold startup (at least 20 mins turned off), but sometimes you need a more powerful degaussing tool to get the job done. Magnetic interference from the pinball table might have been it but Iíd let it sit on the floor away from magnetic fields for 20+ minutes then try the power again and see if it clears up.
A rebuilt chassis probably means the seller most likely replaced the caps. Could be a combination of things replaced, but caps are usually part of the rebuild servicing.

Iíve got a k7000 sitting in the garage waiting for my next project. I should try to get it as clean as yours!

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Re: Gil's Robotron Build
« Reply #37 on: February 26, 2019, 09:10:03 am »
I really want to play a real Robotron to see how the joysticks feel but it might not be till ZapCon.  But even then a real cab might have joysticks that are more worn in.  I temporarily wired up my control panel and played with it sitting in my lap which isn't optimal but the Wico Joysticks from ArcadeShop are feeling really stiff.  And it seems like you barely move them to activate the leaf switches which maybe will turn out to be what you want for quick response.  I've just gotten so used to the loose ServoStik feel its going to take some getting used to.  Its cool to see it all working and now I'm really motivated to get the rest of the cab built to put it all in.

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Re: Gil's Robotron Build
« Reply #38 on: February 26, 2019, 12:09:22 pm »
I asked the seller and he says this monitor has new caps and a new flyback transformer.  I'm feeling pretty good about getting it now especially since I got an unexpected delivery of donation money last night from the lighting project I help develop that more than pays for this entire cabinet.  Now the wife is feeling better about all the stuff she's seen showing up at the door...lol.

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Re: Gil's Robotron Build
« Reply #39 on: February 26, 2019, 06:15:37 pm »
Neat to see a scratch build, looking good, nice work!  :cheers:

A degaussing coil should get rid of the color variation in the corner. Whenever you move a monitor, change it's location, direction it faces etc. it can be effected by magnetic fields and discolor portions, a degaussing coil will fix this most of the time. Interestingly, in a pinch, an electric drill will work as well though not as effectively as an official degaussing coil.

After hitting it with the coil you'll want to adjust the focus and brightness on the flyback, those will have the next biggest impact. After that you can look at the convergence and color purity. They seem to be ok from the pics you posted so you probably won't have to mess with them but there are tutorials all over the place online for making those adjustments. 
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Re: Gil's Robotron Build
« Reply #40 on: February 26, 2019, 06:50:23 pm »
Looking great so far!  Are you going to stencil the sides?

I've got a similar build planned when the weather breaks here but in cabaret form.  Looking forward to following your build.   :cheers:

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Re: Gil's Robotron Build
« Reply #41 on: February 26, 2019, 07:23:37 pm »
Yeah I think I'm going to buy the stencils for the sides.  They seemed a little high considering you could almost buy side art for the same price but I figure I've got enough into this I might as well do it right.

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Re: Gil's Robotron Build
« Reply #42 on: February 26, 2019, 07:57:53 pm »
Yeah I think I'm going to buy the stencils for the sides.  They seemed a little high considering you could almost buy side art for the same price but I figure I've got enough into this I might as well do it right.

 :applaud:

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Re: Gil's Robotron Build
« Reply #43 on: February 27, 2019, 09:27:37 am »
Yeah I think I'm going to buy the stencils for the sides.  They seemed a little high considering you could almost buy side art for the same price but I figure I've got enough into this I might as well do it right.


This just keeps getting better.

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Re: Gil's Robotron Build
« Reply #44 on: February 27, 2019, 09:44:36 am »
Thanks guys.  I'm also going for my 3rd set of joysticks.  I bought the Dominux8's from GGG but I haven't even unwrapped them yet.  I then saw the Wico's at Arcadeshop and bought those.  They feel really stiff but maybe that's how its supposed to be I don't remember.  But then yesterday I messaged a guy I saw on KLOV who used to sell restored Robotron joysticks and he said he had enough parts to make me a set and said they should be the best ones I can get.   So I'm going to have enough joysticks for a few panels when I'm done...lol.

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Re: Gil's Robotron Build
« Reply #45 on: February 27, 2019, 10:11:36 am »
Original Wico's are the best, they'll feel stiff initially compared to other joysticks but that's how the originals were. Took me awhile to get used to it after playing with the U360's I have on my Mame build. If you're looking for color codes and stencil application check out my Robotron restoration thread.
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Re: Gil's Robotron Build
« Reply #46 on: February 27, 2019, 10:17:26 am »
Original Wico's are the best, they'll feel stiff initially compared to other joysticks but that's how the originals were. Took me awhile to get used to it after playing with the U360's I have on my Mame build. If you're looking for color codes and stencil application check out my Robotron restoration thread.

Thanks I'll check it out.  The Arcadeshop Wico's are supposed to be like the originals but I've read they have a different lb grommet.  The ones I'm getting made for me are supposed to be originals with new grommets.  I'll be curious to feel the difference.  I've gotten used to playing with the Servostiks which are really loose.  I've only gotten 319,000 high score so far and I've been joking I'm expecting these original sticks with CRT to triple my high score...lol.

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Re: Gil's Robotron Build
« Reply #47 on: February 27, 2019, 10:21:47 am »
Original Wico's are the best, they'll feel stiff initially compared to other joysticks but that's how the originals were. Took me awhile to get used to it after playing with the U360's I have on my Mame build. If you're looking for color codes and stencil application check out my Robotron restoration thread.

Wow...I just looked at the Robotron competition from a year ago and see you were up there in the "play till you get tired" category.

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Re: Gil's Robotron Build
« Reply #48 on: February 27, 2019, 10:38:06 am »
Thanks guys.  I'm also going for my 3rd set of joysticks.  I bought the Dominux8's from GGG but I haven't even unwrapped them yet.  I then saw the Wico's at Arcadeshop and bought those.  They feel really stiff but maybe that's how its supposed to be I don't remember.  But then yesterday I messaged a guy I saw on KLOV who used to sell restored Robotron joysticks and he said he had enough parts to make me a set and said they should be the best ones I can get.   So I'm going to have enough joysticks for a few panels when I'm done...lol.

I currently play Robotron in my Total Carnage cabinet.  For some reason Williams switched from Wicos to a (Happ?) microswitch for the sequel to Smash TV.   The joysticks work surprisingly well but Wico is definitely the way to go.  You won't be disappointed.

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Re: Gil's Robotron Build
« Reply #49 on: February 27, 2019, 10:38:31 am »
Wow...I just looked at the Robotron competition from a year ago and see you were up there in the "play till you get tired" category.

I'm a mid-level player at best, I posted a decent score but Opt still kicked my butt. :D I don't think either of us could hold a candle to the guys who actually marathon the game, the record takes somewhere in the 48hr range. :dizzy: I've since switched to playing Tournament settings, 5 men with no extra lives which I really like. The world records on Tournament are ~800k - 1.2 million which I think is achievable with some practice though I've yet to get higher than ~350k. 

Records are here: https://www.twingalaxies.com/game/robotron-2084/arcade
Some good Robotron info here: http://www.robotron2084guidebook.com/
Games: Asteroids Deluxe | Atomiswave | Centipede | Championship Sprint | Defender | Donkey Kong | Dig Dug | Frogger | Ikari Warriors | Missile Command | Pac-Man | Pole Position | Robotron | Spy Hunter | Tempest | Super Mario Strikers

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Re: Gil's Robotron Build
« Reply #50 on: March 04, 2019, 10:56:36 pm »
Started cutting out several pieces and putting things together.


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Re: Gil's Robotron Build
« Reply #51 on: March 05, 2019, 01:14:32 am »
Looks Fantastic..

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Re: Gil's Robotron Build
« Reply #52 on: March 05, 2019, 02:38:08 am »
Great progress. Looking forward to seeing the rest!

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Re: Gil's Robotron Build
« Reply #53 on: March 07, 2019, 11:12:27 pm »
A little more progress.  Got the control panel mounted...it swivels down on a hinge and I have a couple clamps to lock it in place.  Then I cut out a piece of wood to fit inside the speaker grill I bought.  To create channels for the marquee I couldn't find any good plastic trim so I'm using 2 pieces of angle aluminum on the bottom and 1 piece on top.  I'll take that all off and paint it black later.  After taking the photos I noticed some adjusting I needed to do to the grill since the board was not seated all the way on one side.  Next I need to fit the bezel but I needed to wait for a second pair of hands.






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Re: Gil's Robotron Build
« Reply #54 on: March 08, 2019, 05:22:51 am »
This build is coming out awesome.  It looks perfect and that CP - wow!   :cheers:

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Re: Gil's Robotron Build
« Reply #55 on: March 08, 2019, 06:23:20 am »
This build makes me happy.

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Re: Gil's Robotron Build
« Reply #56 on: March 08, 2019, 08:41:16 am »
Yeah I'm having to kinda wing it when it comes to positioning of all these front items.  The control panel artwork had precut holes for where the hinge mounts.  I laid the hinge over the holes and thought it all looked good so that's where I drilled and attached it.  Then when I went to hold the panel in place I realized the hinge was causing the control panel to be pushed forward about 3/16" more than I had planned.  If I had to do it over I would have moved the bottom coin door board back 3/16" and I could have cheated the hinge a little deeper on the control panel.  The only real effect was I didn't get as big of a lip where the side panel sticks out past the control panel.  It's barely a 1/4" and I was shooting for closer to 1/2".  So not a big deal and I'll be happy with how it ended up.  And the lip I had sized above and below the marquee seemed to come out a little thinner than I planned.  I did have to sand down the top edge of the side panels so maybe I made it 1/8" shorter.  My CNC can only cut 4' pieces so I had to get creative to cut the 6' side panels using 2 tiled toolpaths and cut registration marks.  It seemed to be aligned perfect but for some reason the 2nd cuts came out a smidge off so I clamped the sides together to sand them even.

I've ordered stencils for the side panels from thisoldgame.  I had seen where some folks recommended gamestencils.com but I didn't like not even being able to see their products.  The website required an account create before you can even see what they have to offer.  Kinda weird I've never seen that before.

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Re: Gil's Robotron Build
« Reply #57 on: March 08, 2019, 11:49:37 pm »
Without question my favorite build going.. says a lot when I also have mine posted.. 

Looking GREAT!!

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Re: Gil's Robotron Build
« Reply #58 on: March 12, 2019, 12:13:45 am »
Got my rebuilt original Wico's in the mail from Andrewb on KLOV.  They feel really nice.  At least half the stiffness from the ones I got through ArcadeShop.  Starting to work on painting the cabinet.  Looks like it could be a couple weeks to get that done to my satisfaction.  I sprayed on a couple coats of primer and it was ok for the inside stuff but I wasn't happy with the progress of it leveling out the side panels.  So I ended up laying the cabinet down so I can work on one side at a time.  I sanded most of that primer off except for down in the grain sections and then I'm using rattle can filler primer.  Got 4 cans on just one side so far and its feeling pretty nice.

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Re: Gil's Robotron Build
« Reply #59 on: March 12, 2019, 08:35:53 am »
You've inspired me to try Robotron on my cabinet.. 
I started it up and nothing was configured right..  I set up the joystick and some buttons..
I should have come back to the thread and looked at your CP

2 joysticks!

I'll reconfigure Player1 and Player2 sticks.  That will work better!
My Arcade Build and other projects here:
https://bperkins.wordpress.com/

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Re: Gil's Robotron Build
« Reply #60 on: March 14, 2019, 01:02:22 am »
Looking forward to what you get done next!!

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Re: Gil's Robotron Build
« Reply #61 on: March 18, 2019, 11:33:51 pm »
Awesome work, I love this project!

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Re: Gil's Robotron Build
« Reply #62 on: March 19, 2019, 12:58:41 am »
Thanks I'm still chipping away at it.  Just stripped and repainted the coin door panel tonight because I messed it up the first time.  Just when you think it's ok to do one more spray pass.  It looks fine then I come out 15 minutes later and its drooping.  So I stripped that panel and laid it so it's flat this time.  I also diverted some time this weekend to doing a cap kit on my Defender monitor.  Had some issues getting that working.  I still don't like the colors so I'm going to work on it some more.  Red is really strong and green and blue are weak.  Tweaking the black level I can get green and blue to look good but then I gotta turn red down so far that it looks muddy.  Everything does look better on the monitor though so it was an improvement.

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Re: Gil's Robotron Build
« Reply #63 on: March 19, 2019, 12:16:31 pm »
Well the coin door panel redo looks great.  It only has one coat over the primer and I'm worried trying to add more paint may just make things worse so I think I'm going to leave it as is.

I went to the Sherwin Williams automotive store and was going to buy a metallic silver.  I was only going to get a half gallon.  She rings it up and along with the required mixer it came to $216.  I said well just print that out and let me think about it.  I went back to Home Depot and I'm going to just try using Rustoleum oil-based Aluminum color.

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Re: Gil's Robotron Build
« Reply #64 on: March 21, 2019, 12:19:33 am »
Love everything about this build.. you need to get it working so we can race to 1,000,000, Pedestal vs Full Size awesomeness, battle of the JROK boards!!

- Zeosstud

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Re: Gil's Robotron Build
« Reply #65 on: March 21, 2019, 09:03:05 am »
The way painting is going I'll never finish.  I have a nice Fuji Mini Mite 3 HPLV gravity sprayer but this silver paint is like a magnifier if it's not a perfectly flat surface.  I just don't think I can work with it unless I lay it on its side and do one surface at a time.  I can't spend the proper time sanding with it upright.  Seems like you gotta sand off 97% of what you just sprayed on to fill in the other 3% imperfections.  At some point I'll just say enough is enough because once its done nobody coming over will really even be able to see the sides or give a crap about what it looks like.

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Re: Gil's Robotron Build
« Reply #66 on: March 21, 2019, 09:24:07 am »
Love everything about this build.. you need to get it working so we can race to 1,000,000, Pedestal vs Full Size awesomeness, battle of the JROK boards!!

- Zeosstud

If I can't score high it will be all on me and not the cabinet.

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Re: Gil's Robotron Build
« Reply #67 on: March 21, 2019, 09:38:39 am »
I know EXACTLY how you feel.. :-)

Sent from my SM-G955U using Tapatalk


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Re: Gil's Robotron Build
« Reply #68 on: March 21, 2019, 09:47:42 am »
Usually you can cheat it a bit when you are that close, with satin clear, your problem will still be there just hidden by distraction, make sure it is compatable with your paint if you try it (same brand is usually safe).

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Re: Gil's Robotron Build
« Reply #69 on: March 21, 2019, 10:18:27 am »
Usually you can cheat it a bit when you are that close, with satin clear, your problem will still be there just hidden by distraction, make sure it is compatable with your paint if you try it (same brand is usually safe).

Yeah I believe everything on the sides is oil based.  I used Filler Primer spray cans and thought I had it fairly smooth.  I knew it wasn't perfect but it felt really smooth when you run your hand over it.  Seems like the aluminum color shows marks that you almost can't feel with your fingernail.  The aluminum color is rustoleum oil based and I was going to use rattle cans for the red and blue because I didn't see colors I liked in anything else.  It was my first time spraying oil based and I gotta say I kinda liked it.  It seemed to spray much nicer than latex.  And I'm using the 3M cup system so cleanup was pretty easy.

If I spray a clear coat I would imagine doing it after spraying the red/blue stencils would be best but at that point there's no going back if you don't like how the silver looks.  Painting is my weakest skill.

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Re: Gil's Robotron Build
« Reply #70 on: March 21, 2019, 10:43:59 am »
Wouldn't worry too much about it since even the factory cabs had imperfections in them  :dunno

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Re: Gil's Robotron Build
« Reply #71 on: March 21, 2019, 11:27:47 am »
Yeah I'm afraid the poor quality of the originals has no bearing on the level of quality I expect from myself.

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Re: Gil's Robotron Build
« Reply #72 on: March 21, 2019, 01:09:42 pm »
Yeah I'm afraid the poor quality of the originals has no bearing on the level of quality I expect from myself.
You will know from experience next time and no reason it can't be something to be proud of...Without seeing it, Jenn would let it dry, cured out in fact, Just set it aside in a warm place (work on somthing else for awhile) and in a week or three sand it flat again with 400/800 grit, and repaint.

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Re: Gil's Robotron Build
« Reply #73 on: March 21, 2019, 01:56:46 pm »
Hell if you're using 400 grit it's already flat in my book...

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Re: Gil's Robotron Build
« Reply #74 on: April 03, 2019, 11:33:12 am »
Well I'm about to go back and strip the sides down to the wood for the 3rd time.  At one point I had it lying sideways and sprayed what I expected to be the last coat on one side.  It was looking perfect.  My wife comes home and does something she almost never does....opens the garage door.  I run out yelling noooooooo....  Got the door back down and everything seemed ok.  Come back out and check it 2 hours later and there are 2 moths stuck in the paint.  In the morning that side looked perfect except for the moths.  I tried sanding them out but they seemed to be dug in like 3 layers of paint and it just looked too messed up in that area.  I ended up stripping it back down to the wood on both sides.  Then I tried just leaving it standing up and spraying both sides at once.  It actually was looking pretty good and I was going to accept that you could see a little bit of the wood grain texture.  It didn't feel deep at all.  I lightly sanded and thought just one more coat.  Spray on that coat and its just looking worse like it has pock marks in the areas where it was grainier.  It just seems like the paint avoids the divots and looks worse every coat.  This paint just doesn't sand very well no matter how long I let it dry.  Whether I use an orbital sander or a manual sanding block it always gathers in the middle of the paper and I had to try to clean it off with a razor edge every 10 seconds.  The filler primer was the only thing that sanded very well but that try got messed up by the moths.  Between buying stencils, an HPLV sprayer, paint, sanding pads, and other junk I'll probably have $1,500 in this paint job when I'm done.

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Re: Gil's Robotron Build
« Reply #75 on: April 03, 2019, 12:38:37 pm »
That is actually a fun story, most of us have been there...From what you are describing that sounds like orangepeel, probably need to thin your paint a little more, and keep it wetter by overlapping your passes next time faster with less tack...For now Jenn would just stop and let it dry (or your going to have shrinkage issues)(infered Uv lights, like incubator chicken egg lights from the farm store, or hot natural sunlight will speed up your dry times...And take your wife out on a date night, she probibally feels bad about the moths.

Gilrock

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Re: Gil's Robotron Build
« Reply #76 on: April 03, 2019, 03:22:25 pm »
This paint is already super thin.  If I spray the cab upright I have to be super careful to keep the flow very minimum to keep it from running.  I had a friend who paint professionally come over and try my sprayer on a practice piece of wood and he had issues with it running.  I was laughing saying dude I told you this paint will run unless you put just a really thin coat on there.  I've tried going thicker when lying it flat.  I don't think what I'm seeing is orange peel because I've seen what that looks like with a latex paint.  This metallic oil-based paint is a completely different animal and is a big pain.  I'm also learning how to use this sprayer from scratch on this project so I think I learn something each time.  My lesson with this paint is you pretty much need the surface to look like however smooth you want it before spraying this metallic paint.  So you gotta use primer to get it smooth don't expect to be able to sand this metallic paint very much to level the surface.  And it seems like 2 to 3 thin coats is the max you should do once you get more than that it then seems to not look as good.

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Re: Gil's Robotron Build
« Reply #77 on: April 03, 2019, 06:45:27 pm »
You have learned some valuable information during the course of this... Cars for example are usually painted in coats of 3. Your gun is not set up correctly,  First look a the cap for the tip, It should be around 1.4 for what you are doing, a 1.8 go example would be too big. I it clean? Those little holed next to the center hole need to be open, that is your atomization, The vent on the cap needs to be open too or it will vaporlock...And finally with your pressure around 25psi, turn the fluid knob in a bit (try 1/4 turn clockwise) It is the knob on the back directly in line with the centerhole on the front.
« Last Edit: April 03, 2019, 07:19:15 pm by jennifer »

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Re: Gil's Robotron Build
« Reply #78 on: April 03, 2019, 07:54:14 pm »
This is my gun:
https://www.amazon.com/gp/product/B00D4NPPNM

So I'm using a 1.3 needle.  I clean it after every use.  I currently don't have a way to measure pressure I'd need to buy a gauge to mount at the end of the hose.  I know what all the controls do and I can disassemble and reassemble this gun in my sleep now.  I've experimented with several different positions of the fluid knob.  One video I watched from a professional car painter the guy said he liked to turn the knob in till you just start to feel it push the handle and then he said you control the spray by how far you pull back the handle.  I've done that and I've also tried racking it all the way in and then backing it out till I was getting a fine spray.  I think I've done a pretty good job spraying my failures are probably more along the lines of not properly sanding flat between coats or not waiting long enough to sand and things like that.  This last time the first 3 coats sprayed beautiful and I should have just left it alone and gone with those results.  I tried to push it one more coat to get rid of a bit of the wood grain look and things went south.  And by the way this paint from the store sucks.  It comes with a big pile of sludge at the bottom of the can and I spend 15 minutes stirring it.  For one of the quarts I had the guy in the store break it loose and run it through their shaker twice and that was probably the best result.  I might be dealing with paint that's just too old.

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Re: Gil's Robotron Build
« Reply #79 on: April 03, 2019, 07:56:26 pm »
If I could find a local expert I'd pay to have them use my gun just once to show me how its done and maybe see if something is not setup right.  It definitely doesn't seem like the paint comes out "atomized".

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Re: Gil's Robotron Build
« Reply #80 on: April 03, 2019, 08:36:10 pm »
Sorry to hear about your painting challenges.  From what I've read, I think you are correct about the primer preparation of the surface and its importance.  If you can still see grain or bumps after you've applied several coats of primer and wet sanded back then the primer surface is too thin.  Regardless of the type of finish you want, be it mat/semi-gloss or high-gloss that prepared surface has to be smooth.  Think dull plastic.  The dull plastic finish is a 600 grit finish and no less.  No smoother though or you start to impact paint adhesion.  Paint needs some micro roughness to adhere best.

As an example, my Xenolix cab (bartop) is at the dull plastic primed stage.  I'll be spraying it with rattle cans of mat black.  It won't be sanded after each of two coats at all.  The finish will be smooth and even because of the surface preparation and because of the quality of the rattle cans.  I normally use my spray gun these days, but won't be for that particular project because of the type of paint I want to use.

This is what I suggest.  Step 1...don't let it get to ya!  :)  Get the primer finish free of grain with a few coats, say three or four.  Wet sand each back just enough to dull smooth using 600 grit.  Put your gun aside for the time being until you can get your technique perfected more.  Use some good quality rattle cans that match the primer type. That paint youíre using seems a bit suspect as well.  I'd recommend spraying on horizontal surfaces, it's just so much easier.  It does takes longer to get things done but it's worth it.  I still try to avoid spraying vertical surfaces unless absolutely necessary.

We can chat about painting stuff over a beer soon enough  :cheers:

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Re: Gil's Robotron Build
« Reply #81 on: April 03, 2019, 08:52:29 pm »
After I stripped it last round I tried to just spray on the final color and didn't add more primer because it appeared the grain was already somewhat filled in since you can't strip it out of the crevasses and I thought it might not look that bad to have a little wood grain look since my Defender cab from the old days you can see the grain and you can see where they inserted those eyeball plugs to fix defects in the wood.  I bought a few rattle cans with the same Aluminum color and the one side I experimented on it just seemed like I wasn't able to get a uniform look.  I know you're supposed to keep walking up the wet line.

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Re: Gil's Robotron Build
« Reply #82 on: April 10, 2019, 10:00:59 am »
Ok round 3.  I stripped this side back to wood and then put several coats of filler primer and had it sanded with 400 grit.  It felt the smoothest I've had it before spraying the real color.  I tried one can of spray paint and the uniformity was terrible.  So after that dried I used my HPLV gravity sprayer.  With the silver paint that's when a bunch of tiny imperfections show up that I couldn't even see in the filler primer.  This is where I get unsure how to handle it.  Those imperfections appear to be almost the entire thickness of the coat I sprayed on so it seems like I'd need to sand off the entire coat to get this smooth again. Anyways I attached the best photo I could get.  Hard to photo a flat grey surface.

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Re: Gil's Robotron Build
« Reply #83 on: April 10, 2019, 10:09:53 am »
I wish I could help you with paint. I have almost no experience with painting. I have a family friend that owns an auto body shop. I think I would take a cab to him if I ever needed one painted.

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Re: Gil's Robotron Build
« Reply #84 on: April 10, 2019, 10:21:15 am »
Part of me wants to just call that good enough.  I really want to get to playing this thing not just stare are a pretty paint job....lol.

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Re: Gil's Robotron Build
« Reply #85 on: April 10, 2019, 10:35:26 am »
Just get 2 more cabs. Put Robotron in the middle. Problem solved. You are welcome.

jennifer

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Re: Gil's Robotron Build
« Reply #86 on: April 10, 2019, 02:22:57 pm »
That's getting really close...I am thinking your paint is not thick enough to get the mils (thickness) you need for coverage. This time take a pencil and circle all your problems, and with auto body glaze putty and a razorblade cleaned off with acetone fill all your problems flat and smooth, not a pile but a scrape flat with the cabinet, only do like 4 at a time or so because that stuff sets really fast an gets clumpy and unworkable in like2 min....Sand again with 400, randomly and evenly and completly, and with your paint a bit thicker, test your pattern on cardboard, your looking for a long skinny oval about 4inches long, at around 20psi,... Evenly spray a coat not wet but sticky and pimply but do it evenly everywhere, This is your tack coat, its really light and thin, and looks horrible, when you get all the way around don't stop where you started should be sticky not dry, Coat two is coverage and build, (done correctly you have effectively bridged any misgivings) this time you want build and coverage even overlapping passes, it should look painted at this point just kind of thin, and probably a missed spot here and there... Walk away for 15 min (depending on conditions, I smoke A lucky and mix a new batch of color in that time) But Not telling you to smoke, Mike A would get all offended. ;D... it needs to tack, touch the tape, it should be sticky, not dry for coat 3...Again even overlapping passes this time is the money shot, the shine, this is what you will be looking at forever, make it wet, from about 5 inches away, smooth even coats overlapping your passes, go past the edge of you panel before you let off the trigger, just like a crop duster come back for the next pass, Not too much or it will drip, just enough to get that awesome shine

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Re: Gil's Robotron Build
« Reply #87 on: April 10, 2019, 02:28:34 pm »
Quote
Walk away for 15 min (depending on conditions, I smoke A lucky and mix a new batch of color in that time) But Not telling you to smoke, Mike A would get all offended. ;D...

I an not offended Jen. I am just worried about your health.

I need you around so when I am 85 I can tell you that I learned how to weld.

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Re: Gil's Robotron Build
« Reply #88 on: April 10, 2019, 02:36:20 pm »
Thanks for the detailed reply.  I was somewhat close to that.  I did quick overlapping passes using horizontal strokes and then I did another set of overlapping passes but used long vertical strokes.  I'm in the habit of starting and stopping out past the edge of the wood.  I've watched enough videos to learn that part. :)  The only thing I'm not sure I can do is make the paint any thicker.  This is oil based and is already super thin.  This time with the gun I made sure the pressure valve was fully open since I had partially closed it before.  And I screwed the flow knob all the way in till it shutoff and then backed it out till I was getting a light spray.  I was pretty happy with how it felt when it sprayed this time.  Most of the issues seemed to be more with not having a perfect surface than any spraying issue except for being stuck with the thinness of the paint.

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Re: Gil's Robotron Build
« Reply #89 on: April 10, 2019, 03:05:07 pm »
On that first tack coat then, Turn your pressure down a little, it will leave thicker heavier pimples which will hide more and get a thicker mil base, Doning this however do not let it dry or you will get horrible orange peel, Once you get a good sticky coverage, turn your pressure back up a bit and just keep going around the cab right into your second coat.

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Re: Gil's Robotron Build
« Reply #90 on: April 10, 2019, 03:42:11 pm »
Back that fluid needle out...Take the knob off completly, and then thread it back on about 1 turn. (Don't forget there is a spring on there)...Your trigger should pull back full range now, When spraying only pull it back about half way to control amount. That may help you, since you won't be limited to the stop, or potentially bending the needle, and you can adjust amount on the fly by how far you pull the trigger, critical on large areas like that.

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Re: Gil's Robotron Build
« Reply #91 on: April 10, 2019, 03:55:36 pm »
I should video my next spraying attempt so it can be easier to show what I'm doing instead of me describing it.

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Re: Gil's Robotron Build
« Reply #92 on: April 11, 2019, 09:59:50 am »
So this is what has happened to me every time I try to apply a thicker coating.  When I tried to describe this before people thought I was talking about "orange peel".  I didn't think this is what people called orange peel.  I call it divots like the paint is allergic to the wood in a few spots.  I thought orange peel was more of a more uniform bumpiness across the surface.  I've even had these things not be visible at first and then form as the paint dries.  I've never seen this happen with latex only this oil based paint.  The first time I thought it was something on the surface of the wood like oil from my fingers so I've tried using denatured alcohol to clean the surface before spraying.  I've tried using another product called after wash which is supposed to clean the wood after you have used the paint stripper product.  I've wondered if it could be tiny amounts of cleaner that are stuck in the spray gun from when I cleaned up after last use.  It just only seems to show like this when I do thicker coats that have that good shine.

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Re: Gil's Robotron Build
« Reply #93 on: April 11, 2019, 11:57:18 am »
Do those spots appear in the same spot every time or is it always different?  If they are in the same spots, you have an issue with the cabinet (try sanding and adding a layer of bondo instead of just another layer of paint) but if it is in different spots you have an issue with the paint (or the spray gun).  Not sure how to correct that...

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Re: Gil's Robotron Build
« Reply #94 on: April 11, 2019, 12:03:51 pm »
I applaud your patience man. I would have used gasoline and a match by now. And I would have thrown the sprayer on top of the fire just to watch it suffer.

jennifer

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Re: Gil's Robotron Build
« Reply #95 on: April 11, 2019, 12:10:50 pm »
You are so very close man... What you got there is called fisheyes, A contamination... Most likely water from the compressor, drain your tank, add a water trap bulb to the end of your gun, (cheap) lightly fill the problem areas again sand it down as far as you dare without hitting wood...And you are golden.

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Re: Gil's Robotron Build
« Reply #96 on: April 11, 2019, 12:22:07 pm »
Hmm...well there is no "tank" it's a turbine compressor but I'll still see what I can find for filtering near the gun.
https://www.amazon.com/gp/product/B00D4NPPNM


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Re: Gil's Robotron Build
« Reply #97 on: April 11, 2019, 12:37:22 pm »
That seems like a fun little set up... It doesn't seem to have a tank, but what you got there is contamination coming from somewhere, hose, oil blow by, silicone in your work area, resins in your wood, but normally water is the culprit, because you are actually squeezing the humidity out of the air of it by pressurizing it,...https://www.harborfreight.com/oilwater-separator-68246.html
« Last Edit: April 11, 2019, 12:48:25 pm by jennifer »

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Re: Gil's Robotron Build
« Reply #98 on: April 12, 2019, 01:57:36 pm »
Well I've sanded and sprayed 2 more times.  I think I'm going to call it good for this side.  There is only that one spot in the lower left that I might try to touch up but I don't think I want to risk spraying it again and things going backwards.  I'm trying to decide if I should spray a clearcoat over it and let that dry before using the stencil.  I've seen this metallic paint leave smears if I touch it even like 3 days later so I'd like to seal it where I could wipe off dust if needed before applying the stencil.

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Re: Gil's Robotron Build
« Reply #99 on: April 12, 2019, 01:58:50 pm »
One video I saw they waited a week before using the stencil.

jennifer

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Re: Gil's Robotron Build
« Reply #100 on: April 12, 2019, 05:06:20 pm »
That needs to not only be completely dry but also cured before stencil or clear, It will try to dry under the clear and you will get solvent pops (Pimples everywhere)...It will look like horse butt.

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Re: Gil's Robotron Build
« Reply #101 on: April 12, 2019, 06:53:57 pm »
I knew I needed to wait before applying the stencil but wasn't sure about the clear paint.  I didn't realize it was any different than putting on another coat of paint.  So I gotta wait at least a week?  Waiting sucks...lol.

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Re: Gil's Robotron Build
« Reply #102 on: April 12, 2019, 07:25:24 pm »
You gotta wait to paint, fine, what about dialing in the settings of those Joysticks, get your game on.. :-)

Sent from my SM-G955U using Tapatalk


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Re: Gil's Robotron Build
« Reply #103 on: April 12, 2019, 07:35:59 pm »
You gotta wait to paint, fine, what about dialing in the settings of those Joysticks, get your game on.. :-)

Yeah at this point I don't even know how those joysticks should feel.  I gotta wait till it's setup and running to judge them.

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Re: Gil's Robotron Build
« Reply #104 on: April 12, 2019, 08:15:02 pm »
I got a new toy today that will keep me busy till the paint dries.

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Re: Gil's Robotron Build
« Reply #105 on: April 13, 2019, 10:35:33 am »
Very nice.

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Re: Gil's Robotron Build
« Reply #106 on: Yesterday at 10:43:21 am »
Well I've decided that aluminum metallic paint just isn't going to work.  The problem I have with it is no matter how long I've waited for it to dry even after a week I cannot find anything that it can be wiped with that won't leave streaks.  It's like it has some kind of graphite in the paint that gets lifted and smears.   So I tried putting a coat of clear oil-based poly over top.  When that dried it was great.  It looked good and I could wipe it down with Isopropyl alcohol without any marks.  I tested the surface by putting some painters tape on it near the bottom and then pulled it off and it seemed fine.  So I went ahead and did the first blue stencil on that side.  It was looking awesome then 1/3 of the way through pulling the stencil off I could see the blue paint was lifting and realized it was pulling up the poly layer.  So I ---fouled up beyond all recognition--- up that stencil.  I was able to use a razor to grab edges and pulled the entire poly layer back off.  So I guess since I wasn't able to touch the aluminum layer it was too smooth and the poly didn't bond.  Now I gotta see if they can sell me just the one stencil piece since the other 3 pieces are just fine.  Of course you email and then just sit here not hearing anything.

So I decided to try a different paint.  Forget the metallic paint and just pick an oil-based grey color.  I have to say this new grey paint is a completely different animal from the other paint so I'm having completely different issues but I think it will work out better.  It's a thicker paint so I thinned it but I ended up with orange peel...first time I had seen that happen.  I thought I had thinned it quite a bit...I'd estimate 20% and with my setup there is no way to increase pressure like I see recommended in videos.  I tried just laying it on heavy since it was horizontal but the paint did not level out.  After a couple hours I could tell it wasn't going to look right so I used paint thinner and rags and completely wiped off that attempt.  I remixed a new batch and played with the adjustments practicing on a piece of spare wood.  So I laid down another layer.  It still didn't seem perfectly smooth but it wasn't as bad as that first time.  I just left it as a really thin coat and I'll check out how it looks tonight.  I feel like I'm getting a crash course on everything that can possibly go wrong on this one cab.

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Re: Gil's Robotron Build
« Reply #107 on: Yesterday at 11:50:23 am »
At this point I would start over, (not what you wanted to hear right?).....That would include changing your paint to at least a rustolium grade enamal, Set the cab on cardboard and starting at top strip it clean with paint stripper (W/mart sells 3 grades the extreme works well but does stink, read safety)...Wipe it down with the reducer for your new paint to neutralize striper, let dry...I would also be curious of your air pressure with that fancy compressor, A inline gun regulator with a Gage (from auto store) will tell the story, Put it on your gun then the watertrap, Then the hose...Don't feel bad it happens to everyone, Jenn has a redo issues with that pin, so very not happy.

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Re: Gil's Robotron Build
« Reply #108 on: Yesterday at 12:33:42 pm »
I've already stripped it down twice so there's not as much paint on there as it might sound.  And yesterday after removing the paint I had it sanded down smooth and it was a good starting surface.  If I complete strip it now I'd basically be removing all the primer and then have to go through several primer iterations again to get it smooth.  I thought this last spray looked pretty nice.  I'm not going for perfect smoothness just want it to look uniform.  With this paint I don't think I'll need to try to clear coat it before I stencil because its not metallic and won't have the issue I had with the other paint.

The specs say this sprayer is 9psi....I found this review about it:
https://paintingsilo.com/fuji-mini-mite-4-review/

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Re: Gil's Robotron Build
« Reply #109 on: Yesterday at 07:41:20 pm »
Amazing how much easier it went now that I changed paint.  I'm already happy with this side.  It's not auto finish smooth by a long shot but from a couple feet away it looks great.  Gonna work on stripping and redoing the other side next while I wait on a new stencil for the first layer.  Just got an email back and they said this happens all the time where a customer wants just one part of the stencil replaced.


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Re: Gil's Robotron Build
« Reply #110 on: Yesterday at 08:18:53 pm »
 :cheers: