Author Topic: Let's try economy powder coating at home (Read 23624 times)

griffindodd · « **Reply #40 on:** February 19, 2013, 10:10:14 pm »

Hey man believe me that comment was one of respect and admiration, I struggle with patience quite a lot and I always admire/envy those with it, and you my friend, are the poster child for patience in these forums.

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SavannahLion · « **Reply #41 on:** February 20, 2013, 01:24:47 am »

Quote from: PL1 on February 19, 2013, 08:43:33 pm

Quote from: rablack97 on February 19, 2013, 07:28:46 pm
See told you BBQ GRILL!!!!!

Hmmm . . . I wonder how well something like this would work:

- Steel 55 gallon drum like this turned upside down -- Check CL, there are some used ones here in Omaha for only $5!

- Propane burner from grill in bottom, fuel fed thru the smaller bunghole (cue Beavis and Butthead chuckling) and air from a hairdryer/fan/metal hose through the larger one for a circulation fan/oxygen supply
- Layer of lava rocks/bricks to block flames from touching work pieces
- Large door cut in the side w. hinges/latch
- Outer frame with several inches of high-temp insulation on all sides
- Thermometer
- Variety of hooks to hang work pieces
- Wheeled base for portability so you can fire it up outside and not burn down your house.

Scott

http://forums.corral.net/forums/general-mustang-tech/1355523-show-off-your-powder-coated-under-hood-eye-candy.html (Look for the post by 1994blackcobra)

Use this to get some tips: http://www.powdercoatoven.4t.com/

This looks very similar to the Hamilton Beach oven http://s1269.beta.photobucket.com/user/a1959birdman/library/Datsun%20truck%20project/Original%20L16%20engine%20and%20work%20done/Assembly%20of%20L16/Powder%20coating

rablack97 · « **Reply #42 on:** February 20, 2013, 08:51:51 am »

Damn, I was gonna mention something like that using large heating elements....

Griff example 2 is doable and could be done with half the cost as your's wouldnt have to be that big....

Put on your electrical hat and get to building....

griffindodd · « **Reply #43 on:** February 20, 2013, 12:13:13 pm »

The drum is a nice idea, especially for cooking outdoors, but it's very large, you may as well just dump a CL oven find in your garage at that point and be done with it. The second option with the framing is super interesting, I've seen that before, I wonder if it would turn out cheaper than the $80 I would spend on the two ovens I have coming (I can always RMA them), I do like the idea that it is far more custom.

rablack97 · « **Reply #44 on:** February 20, 2013, 02:34:11 pm »

maybe not cheaper, buy wayyyyyyy more interesting.....

go with # 2.....makes the thread more interesting, send the betty crocker machines back, and build you a man oven....

TopJimmyCooks · « **Reply #45 on:** February 20, 2013, 03:07:39 pm »

for any kind of results you have to be able to keep it reasonably clean in the oven - air blowing around in half a steel drum will blow dust onto your PC and mess it up.

griffindodd · « **Reply #46 on:** February 20, 2013, 04:09:23 pm »

Ok after reviewing some of the info provided here, I'm going to change the approach a bit...

$10 from CL, picking this up tonight on the way home 27"x18"x14"

- Strip out the drawer fronts, see if I can use the rollers/slides to create a frame I can pull in and out for easy loading. Insulate the insides of the cabinet and fashion an exterior skin from 10,000 used bottle tops and rock wool insulation.

- For the elements, steal old toaster oven from kitchen and rape it for all the parts, give wifey one of the new ones that is coming (she wanted a new one anyway so also score wifey points) and return the extra one to Amazon for refund.

- Fashion an insulated door from extruded frame and sheet metal, use glass from old toaster oven as window.

Le Chuck · « **Reply #47 on:** February 20, 2013, 04:44:02 pm »

I used to make raku kilns using a metal trashcan, a ceramic wool blanket, and a propane blower. Cheap and you can fire them up to several hundred degrees quickly. You can also maintain a constant temp by throttling back the propane/blower speed plus the trash can has a nice interior volume for parts hanging and if you need to you can always double stack them. Just need another blanket.

Just another solution incase the electric elements don't work out.

Here's a pretty good Make on it: http://blog.makezine.com/2012/06/28/how-to-trashcan-raku-kiln/

I used to fire my glazes around 1100^oC, only takes a few minutes. The advice in the comments to use square steel mesh rather than a trashcan is good advice but i never had an issue with fumes or anything from the galvanized can. YMMV.

RandyT · « **Reply #48 on:** February 20, 2013, 04:53:12 pm »

Interesting stuff here. Let me echo the sentiment regarding taking care not to burn your house down, and add "don't electrocute yourself". I've seen a lot of amazing home-built projects for vacuum forming and the like, and this will likely have some similar requirements. If you want to actually build your own custom heating elements, a search for those projects will likely yield some valuable information regarding formulas for coil length, and sources of materials for heat management, etc. Also keep in mind that you'll need close to 400 degrees F, which may be hard to achieve in a large area without at least 220v driving the coil. This is why countertop ovens, running on standard 110v power, are never very large. You may be able to do it in a smaller area with direct radiant heaters, an appropriate distance from the part. The quality of the result is going to depend greatly on the uniformity and control of the heat.

I'm not sure if you have had any exposure to the powder coating process, but it's messy and the materials can be costly. The good part is that they can be re-used, if you can keep what doesn't hit the part clean, and fashion something to collect it. I also recommend good ventilation. The powder is fine and will go where you don't want it and as the process involves heat to melt the powder, there is going to be outgassing and possibly odors your family members may find objectionable.

Good luck, and it will be interesting to see what you come up with.

griffindodd · « **Reply #49 on:** February 20, 2013, 04:59:31 pm »

Thanks for the input here guys, I'm going to need to do some good research on this subject as it's already getting complicated, but that's ok, the idea here is to document my travels and hopefully come up with an extremely economical solution others can benefit from too.

yotsuya · « **Reply #50 on:** February 20, 2013, 05:21:46 pm »

Quote from: griffindodd on February 20, 2013, 04:59:31 pm

Thanks for the input here guys, I'm going to need to do some good research on this subject as it's already getting complicated, but that's ok, the idea here is to document my travels and hopefully come up with an extremely economical solution others can benefit from too.

griffindodd · « **Reply #51 on:** February 21, 2013, 12:48:40 pm »

Well this project is taking on a life of it's own.

just got off the phone with a solid buddy of mine who's a regional manager for a large HVAC company who do a lot of stadiums, large factories, data centers etc. I was asking him if he could get me some AC ducting to use for the skins of an oven build and he busts out the magic line... "Dude! Just give me the specs and drawings, we have a whole fabrication facility, I'll give it to my fabrication manager and we'll get it built in stainless for you as long as it's not too crazy"

So, with an offer like that I'm going to have to go ahead and take him up on it.

to be continued...

Nephasth · « **Reply #52 on:** February 21, 2013, 01:02:45 pm »

Quote from: griffindodd on February 21, 2013, 12:48:40 pm

"Dude! Just give me the specs and drawings, we have a whole fabrication facility, I'll give it to my fabrication manager and we'll get it built in stainless for you as long as it's not too crazy"

Now that's my kind of economy!

griffindodd · « **Reply #53 on:** February 21, 2013, 01:04:43 pm »

yeah I can't turn that down, with an offer like that I'm going to try and squeeze an upright 48"x18"x24" interior oven out of this favor complete with a stand for a gas bottle and have it all on wheels lol.

TopJimmyCooks · « **Reply #54 on:** February 21, 2013, 02:42:39 pm »

Whatever size you make it will eventually be too small. Make sure you can fit the siderails of a pinball machine in there. 4' 6" or so.

selfie · « **Reply #55 on:** February 21, 2013, 06:54:17 pm »

Quote from: yotsuya on February 19, 2013, 05:09:15 pm

Please tell me there is fuzzy carpet or wood paneling in the inside of your mate's van!

Plenty of crushed velvet goodness

Ond · « **Reply #56 on:** February 21, 2013, 07:00:01 pm »

Woo hoo

an awesome high powered shaggin wagon!

griffindodd · « **Reply #57 on:** February 21, 2013, 07:01:06 pm »

ZOMG it has two Simons?

?

yotsuya · « **Reply #58 on:** February 21, 2013, 07:09:55 pm »

We'll get some purple fringe taillights and thirty inch fins, oh yeah
A Palomino dashboard and duel muffler twins, oh yeah
With new pistons, plugs and shocks I can get off my rocks
You know that I ain't bragging, she's a real ---Bad words, bad words, whatcha gonna do? Whatcha gonna do when saint censors you?--- wagon
Grease lightning
(Go, go, go)

griffindodd · « **Reply #59 on:** February 21, 2013, 07:10:59 pm »

Sent off the specs to my buddy today to see if he can work his magic and get me hooked up. The dimensions kind of...erm.....grew a little as I figured I may as well take this opportunity to get something great that will hopefully keep me going for a long while. I still want to be able to wheel it through a standard doorway and have it sit alongside a bench in the garage so final external dimensions are 80" high, 28" wide and 34" deep including door, allowing for 4" insulation between skins that will give me 72"x"20"26" internal cooking space.

Haven't decided on propane vs electricity yet. If I go electric I will have to go to 240v with a 3000watt element putting me at 12.5A, this will get me up to operating temperature of 400f in ambient temps of 65f in about 20 mins.

I've specced out the oven to handle up to 900f or so should I decide I want to try ceramics in the future which come in at around 650f-700f curing temps, but if I do that I'll have to go to 240V 6000 watts at 25A

selfie · « **Reply #60 on:** February 21, 2013, 07:19:43 pm »

Quote from: griffindodd on February 21, 2013, 07:01:06 pm

ZOMG it has two Simons??

His name is Simon... The four colour segments are LED lit too, and SUPER bright.

Le Chuck · « **Reply #61 on:** February 21, 2013, 07:51:09 pm »

Quote from: griffindodd on February 21, 2013, 07:10:59 pm

Sent off the specs to my buddy today to see if he can work his magic and get me hooked up. The dimensions kind of...erm.....grew a little as I figured I may as well take this opportunity to get something great that will hopefully keep me going for a long while. I still want to be able to wheel it through a standard doorway and have it sit alongside a bench in the garage so final external dimensions are 80" high, 28" wide and 34" deep including door, allowing for 4" insulation between skins that will give me 72"x"20"26" internal cooking space.

Haven't decided on propane vs electricity yet. If I go electric I will have to go to 240v with a 3000watt element putting me at 12.5A, this will get me up to operating temperature of 400f in ambient temps of 65f in about 20 mins.

I've specced out the oven to handle up to 900f or so should I decide I want to try ceramics in the future which come in at around 650f-700f curing temps, but if I do that I'll have to go to 240V 6000 watts at 25A

Check your glaze temps if you intend to do ceramics, the lowest firing cone for a simple china painting glaze is still over a 1000f and the lower end of bisque firing for any clay is in the neighborhood of 1800. Seven hundred even on an extremely long soak (over 24 hours) isn't likely to glass the clay or glaze. Even when I do raku I'm still working on pieces that have already been bisque fired prior to raku. If you get into durable high fire glazes you're looking at 2400^o+.

I think your oven will do an awesome job for powder coating but I don't think it's going to have the legs for ceramics. That said a small kiln won't set you back much if you want to start slinging clay.

griffindodd · « **Reply #62 on:** February 21, 2013, 07:56:48 pm »

Thanks Le Chuck. What I meant was ceramic powder coatings which cure around 700

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Le Chuck · « **Reply #63 on:** February 21, 2013, 08:02:14 pm »

Quote from: griffindodd on February 21, 2013, 07:56:48 pm

Thanks Le Chuck. What I meant was ceramic powder coatings which cure around 700

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Ah, my mistake. Well, um, carry on then!

jennifer · « **Reply #64 on:** February 21, 2013, 08:45:22 pm »

No more pics of the van please...Everytime Jennifer looks at it I look around for my keg cup, and underpants.

Nephasth · « **Reply #65 on:** February 21, 2013, 08:55:48 pm »

TopJimmyCooks · « **Reply #66 on:** February 21, 2013, 10:23:12 pm »

Griff, you realize PC isn't that big of a deal anymore to get done. for $300 you can get quite a bit of stuff PC'd professionally and there are coaters in every town. Looks like you're on track to go at least that if not a lot more.

griffindodd · « **Reply #67 on:** February 22, 2013, 12:52:37 am »

Quote from: TopJimmyCooks on February 21, 2013, 10:23:12 pm

Griff, you realize PC isn't that big of a deal anymore to get done. for $300 you can get quite a bit of stuff PC'd professionally and there are coaters in every town. Looks like you're on track to go at least that if not a lot more.

Yeah man I understand that but I always like to invest in tools and my shop. The oven is coming for free minus heating control elements so at this point its still a good value proposition.

On another point I'm 41 today and drunk so I'm going to stop trying to type on this damn phone

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yotsuya · « **Reply #68 on:** February 22, 2013, 01:02:08 am »

Quote from: griffindodd on February 22, 2013, 12:52:37 am

Quote from: TopJimmyCooks on February 21, 2013, 10:23:12 pm
Griff, you realize PC isn't that big of a deal anymore to get done. for $300 you can get quite a bit of stuff PC'd professionally and there are coaters in every town. Looks like you're on track to go at least that if not a lot more.

Yeah man I understand that but I always like to invest in tools and my shop. The oven is coming for free minus heating control elements so at this point its still a good value proposition.

On another point I'm 41 today and drunk so I'm going to stop trying to type on this damn phone

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griffindodd · « **Reply #69 on:** February 22, 2013, 07:24:26 pm »

This doesn't fit in the economy part if this thread but here are the specs of the oven my buddy is going to hook me up with

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jennifer · « **Reply #70 on:** February 22, 2013, 09:27:15 pm »

Hold on...Hold the phone... Thats not some economy setup with toster ovens, thats a reinventing the wheel project...@ this point you should just look into a "real" Powder oven.

griffindodd · « **Reply #71 on:** February 22, 2013, 09:39:05 pm »

Quote from: jennifer on February 22, 2013, 09:27:15 pm

Hold on...Hold the phone... Thats not some economy setup with toster ovens, thats a reinventing the wheel project...@ this point you should just look into a "real" Powder oven.

This is free and going to be a very real powder oven. Small ones are still in route so I will still be doing some toaster oven coating for practice in this thread just not joining two ovens together at this juncture

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jennifer · « **Reply #72 on:** February 22, 2013, 10:18:29 pm »

Well how awsome your friends with an oven builder, Now you design it and spend countless hours recreating a oven...For the rest of us that were truely looking for a economical approach to DIY powder.... http://www.harborfreight.com/powder-coat-oven-46300.html

griffindodd · « **Reply #73 on:** February 22, 2013, 11:26:08 pm »

Quote from: jennifer on February 22, 2013, 10:18:29 pm

Well how awsome your friends with an oven builder, Now you design it and spend countless hours recreating a oven...For the rest of us that were truely looking for a economical approach to DIY powder.... http://www.harborfreight.com/powder-coat-oven-46300.html

Amazing contribution thank goodness we have these forums for such creative and informative input. Perhaps you have some useful links to 60-in-1 cabs for $700 on Craig's List that we could buy so we dont have to bother building our own versions of those too?

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rablack97 · « **Reply #74 on:** February 23, 2013, 12:17:56 am »

Leave him alone, leave him alone.....

If he buys the stupid oven then we dont get photos.......

Let him build it then we get more photos.......

By the way why in the hell are you selling ms pacman dude......

Nephasth · « **Reply #75 on:** February 23, 2013, 12:24:59 am »

Quote from: griffindodd on February 22, 2013, 11:26:08 pm

Perhaps you have some useful links to 60-in-1 cabs for ~~$700~~$1000 soon to be on Craig's List that we could buy so we dont have to bother building our own versions of those too?

Check your signature.

jennifer · « **Reply #76 on:** February 23, 2013, 12:37:57 am »

Jennifer doesnt look @ 60-1 cabs, Im an OEM kinda girl, But Ill look if you wish... Seeing how your so intent on this, and have gone big like you did, maybe consider a propane fired setup, this would eliminate the electrical considerations earlier in this thread, Give an even steady heat, and make the whole thing somewhat portable.Good luck...Jennifer has left the thread.

TopJimmyCooks · « **Reply #77 on:** February 23, 2013, 01:20:28 pm »

Easy now, lady and gentleman - I must say I took the same poke earlier in this thread by suggesting Griff can get plenty of commercial coating done for less than the cost of this project. Griff has let us know he looked at the options and decided he wants to reinvent the PC oven DIY madman Griff style, and as a DIY forum we can/should support that. I am interested to see how it goes, I've got a home PC gun (the craftsman one) that I may whip out one of these days. He's a big boy and I guess I shouldn't have indicated that his project was ill considered.

Griff, please proceed with your oven build and we look forward to seeing the process and results. Thanks.

Le Chuck · « **Reply #78 on:** February 23, 2013, 01:49:20 pm »

I bet this oven will have cup holders on the top. CUP HOLDERS! Oh the humanatee!

griffindodd · « **Reply #79 on:** February 23, 2013, 02:12:56 pm »

Quote from: Le Chuck on February 23, 2013, 01:49:20 pm

I bet this oven will have cup holders on the top. CUP HOLDERS! Oh the humanatee!

Never powdercoat without a nice cold beer, its hot and thirsty work

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Author Topic: Let's try economy powder coating at home (Read 23624 times)

Nephasth

Nephasth

Nephasth