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Author Topic: JUZI - The mini UZI light gun build  (Read 5203 times)

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gstav

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JUZI - The mini UZI light gun build
« on: July 20, 2018, 03:25:47 pm »


JUZI SHOWCASE VIDEO
https://youtu.be/hR1O5ES9U6k


Other older gamplay videos:
Playing "Behind... Enemy lines" New recoil mod with attached cocking handel to solenoid."
https://youtu.be/ZaIeHOPyQsU

Playing "Elevator Action Death Parade"
https://youtu.be/t4CsEgmF5g0U

Playing "Operation WOLF" + quick demo of the WIP gun."
https://www.youtube.com/watch?v=DQReFa30ttc

Playing "Aliens Extermination"
https://www.youtube.com/watch?v=AAB2Gxm15aE

Playing "Gundam Spirits of ZEON"
https://www.youtube.com/watch?v=QwvbZtID5r0&t=11s

Playing "Let's Go Island"
https://www.youtube.com/watch?v=FmsUvdlJtxo


The beginning

It all started with my previous build of converting a original NAMCO light gun with the re-coil kit from Ultimarc.

The arcade feel was right there with the right feedback shooting the guys in Time Crisis or the Sharks in Point Blank, but hey, if one would play a point and spray title like Operation WOLF or Terminator 2: Judgment Day, well, then the arcade feel was there too, but just for the first bullet, the rest of the massacre would be felt from the in-game sound effects as the trigger had to be released and pressed again for the solenoid to fire.

Not the guns fault really, that was just how the gun was made to work and not suited for full auto games.

Annoying, though! What if I make a gun with full auto feature with maybe a switch for single fire gaming? Put an Aimtrak in a small sub machine gun type, like an MAC-10 or the awesome UZI?

I browsed the net and found a great candidate for it. An faulty mini UZI air softgun.
Price around 40$ shipped - new around 170$!!


The Gun



The gun is C02 gun from KWC and is mostly made of metal. It is very sturdy with an impressive authentic weight in the hand.
I really do not know if I can recommend converting a Co2 gun over an electric type (AEG) as the latter have many of the needed components pre-installed already where the Co2 does not.
Though I had no choice going the UZI way as no electric 1:1 metal gun were to be found.

I had to gut and modify pretty much everything inside the gun and retro fit my own parts. Just to place the trigger switch right took me hours.



The switch for the trigger is super small and fits between the inside bottom and the mechanics of the trigger and gives signal in the right pull of the trigger - around 80% pulled state was my seet spot.



Sparks Attiny Arduino Nano clone

Early on I reached out on Arduino forums and pitched my idea and the first guy I tried to contact turned out to be the super nice guy I needed, a true Jedi and his name was Juice.

I presented my idea and after some days he send me a schematics of how to solder a module with Sparks Attiny, a super small and cheap programmable chip.



He also gave me the code in order to program the Attiny clone board and the chance for me to alter the code for the best operation of the unit.

Edit: The code is now released for all non-commercial purpose thanx to mr. Juice:
download the JUZI code

The whole thing it powered from the same 5V+ USB as the Aimtrak and all fits inside the clip of the gun. I bought a mini uzi clip branded WELL from eBay as the gun came without it's clip.
Cost like 15$ in ABS (original clip in metal 50$). Would have been nice in metal but not Worth the steep price.













Fire selector mode

The gun had a thumb switch which sets it in S-Safe, R-Single Fire and A-Full Auto, but as the gun also have a grip safety which must be pressed before the gun can fire.
I thought I just keep that function and use the three positions of the thumb switch for three fire modes as follows:

S-Single Fire, R-Burst and A-Full Auto, where the single fire and full auto is the same as for what is sent to the Aimtrak - a long on signal.

The burst however, is really 3 single shots fired in an automatic fashion as long as the trigger is being hold.

The gun solenoid answers different to the signals and fires 1, 3, and auto pulses per selected mode a real gun would..

The thumb switch is read with a 10K linear potentiometer inside the gun and its limit values is selectable in the code. (This function can also be controlled via a push button if one wanted via the code)




-- VIDEO --
Early test with the three fire modes on the NAMCO solenoid
https://www.youtube.com/watch?v=LJh02eAtgI0

Here the Aimtrak module is test mounted and the recoil connected to fire for each fire modes selected
https://www.youtube.com/watch?v=Ngke2yx1T00



Fitting the Aimtrak Module

According to my measures the Aimtrak module would fit perfectly inside under the front part of the aim tactile, I had to modify the front barrel a bit and drill a groove so that the camera from the Aimtrak would have a free sight of the IR-diodes








Choosing the right feedback

I struggle on what to use as feedback device. I initially thought of use a vibration motor, but it was a tad too big to fit and then I had to mount it horizontally which would make the vibration goes right/left, and not kick back and forth as you like for a gun.

Also thought of using a small vibration motor and then a small solenoid in conjunction but ended up using a real NAMCO solenoid from my second gun.
I had to modify the solenoids mount rails in order to fasten it and also lower it a bit by cutting the top part off so I could put the top back on.





The solenoid holds up and kicks hard. I initially thought that it would be super hot but it is luke warm at most. clearing the whole first level of Let's Go Island which is a more or less full auto all game through!
The videos of it does NOT make it justice. It kicks like an angry mule!

no-authentic upgrade

After some heavy play-testing I thought that I had to, even though this is NOT how the real mini UZI suppose to behave, connect the top cocking handle to the solenoid for a more arcade style of firing. This sounds more metallic, which also adds to the fun and more realistic I think!  :angel:

Here is the top cover (bottom view) with the cokcing handle which from stock is connected to a spring and ony works as a pull-and-return gimmick.



I removed the spring and created a latch of a metal sting covered in shringking tube. This is just a prototyp, but I thought it can stay in there and I reinfoce this function if broken as
I intentionally just wanted to see if this was a good idea or not. (edit: It was a great idea!)



Here it is screwed tight under the NAMCO recoil top screw. The task now is to catch the hook from the under side of the cocking handle so it stays connected.
I wanted to do this so can open this part fairly easy if needed.



Linked together


Video of the now recoiled cocking handle

-- VIDEO --
Playing "The new feedback in action"
https://youtu.be/5Bg3PDUvVPI
Playing "Behind... Enemy lines" New recoil mod with attached cocking handel to solenoid."
https://youtu.be/ZaIeHOPyQsU

A module cord

I build the cord for the gun using GX16 6 pins male/female connectors. In this way I could free the gun from the cable all together and also take the cord from the cab if needed. I ended up using 5 pins so that would have been enough for this. The cord is an electrical cable 5G with good arcade like black rubber isolation.





GND
5V+ (USB)
12-24V (Solenoid)
DATA1 (USB Aimtrak)
DATA2 (USB Aimtrak),

The cord also enables the gun to be used in multiple arcade setups or if one wants to use the original NAMCO gun for one game and the switch to a full auto gun for another.

I also found it hard to mount an arcade gun to a standard cabinet. Front mount is a no go as it would poke the player and on the side would normally need a holster of some kind.
I thought they where a bit steep in price to get ithem shipped to Sweden, and also if I wanted to remove the gun they would just sit there over the vinyl artwork.
So I just mounted a long screw in the side which I then covered in shrinking tube.

Now when a gun is not connected minimal coverage is affected to the side art.
The only visible parts is the pin and the female GX16 connector for the module cord.



Here is how it looks with each respectively gun mounted.



The good thing a bout the cord also beeing modular is that you can display the guns when not in use aswell as hide them for underaged players(!)





As many of the game titles have a second button like in Operation WOLF you can throw a grenade I placed a button on the right side of the guns front.
Much like on Operation WOLF It thought of use a red button, but I later went with a black as I wanted as much of an authentic gun as possible.





-- VIDEO --
Showing off the buttons
https://www.youtube.com/watch?v=fUeGU0lao1w


Also, the button for release the clip is used as a secondary button. I just put a small micro switch under the button which was already there. (And no, you cannot detach the clip anymore)



The underside of the clip have the male GX16 and also a mini USB female port which makes it super easy to re-program the JUZI module if needed. I have played a bit whit the on and off times of the solenoid in the burst and full auto modes, and this is a breeze having this extended port, though it might be overkill for some.



This gun really can play it all: Single fire shooters and also full auto titles. And the burst mode is just a great bonus mode, like in Virtua Cop, House of the Dead or in games that require you to shoot like crazy like Point Blank.

I don't know if this is the first gun ever made with switchable fire modes and recoil feedback, but I have not seen a finished project when searched around which proceeded me into writing this short story.

I absolutely love my gun to bits and sometimes find myself posing with it in the mirror with a bare torso like when you were Little just finished watching a Rambo flic.

Best 200$+ ever spend if you ask me, although my wife might tell you different.


Lock and load!
« Last Edit: January 03, 2019, 04:25:55 am by gstav »
"One coin to rule em' all"

Ian

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Re: JUZI - The mini UZI light gun build
« Reply #1 on: July 20, 2018, 04:07:48 pm »
Dude
Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.

pbj

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Re: JUZI - The mini UZI light gun build
« Reply #2 on: July 20, 2018, 04:37:59 pm »
 :notworthy:
Nobody cares about your hot takes on Arcade1Up cabinets.

Drnick

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Re: JUZI - The mini UZI light gun build
« Reply #3 on: July 20, 2018, 04:41:57 pm »
 :notworthy: :notworthy: :notworthy:

When are you going to start mass production :)

luizw81

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Re: JUZI - The mini UZI light gun build
« Reply #4 on: July 20, 2018, 10:07:31 pm »
:notworthy: :notworthy: :notworthy:

When are you going to start mass production :)
Seriously....

Sent from my SM-J320R4 using Tapatalk


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Re: JUZI - The mini UZI light gun build
« Reply #5 on: July 20, 2018, 10:13:11 pm »
Cool bar just got raised.

javeryh

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Re: JUZI - The mini UZI light gun build
« Reply #6 on: July 20, 2018, 10:38:40 pm »
Wow.   :notworthy:

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Re: JUZI - The mini UZI light gun build
« Reply #7 on: July 20, 2018, 10:39:48 pm »
DaOld man likes this project!!  :applaud: :applaud:

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Re: JUZI - The mini UZI light gun build
« Reply #8 on: July 21, 2018, 12:01:18 am »
This is amazing.

Mike A

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Re: JUZI - The mini UZI light gun build
« Reply #9 on: July 21, 2018, 02:27:27 am »
Nice work.

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Re: JUZI - The mini UZI light gun build
« Reply #10 on: July 21, 2018, 10:54:37 am »
Some attention to detail with this project. Amazing.

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Re: JUZI - The mini UZI light gun build
« Reply #11 on: July 21, 2018, 08:44:48 pm »
Dude thats awesome!

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Re: JUZI - The mini UZI light gun build
« Reply #12 on: July 21, 2018, 10:45:16 pm »
Thats so good I wouldn't want my kids to see it. To real looking.

gstav

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Re: JUZI - The mini UZI light gun build
« Reply #13 on: July 22, 2018, 07:37:48 am »
Wow! Thanks for the positive feedback guys!  :angel:

I guess you could do this as a kit if one wanted to as it is really a small board added to your existing aimtrak setup.
The gun is 100% completed and working flawlessly, but I intend to re-visit the gun shell lid on the right sid to look a bit better.

(though of using a top cover to an IKEA trash-can *lol* you will see).

Just have to wait for my faulty dremel to return after it burned when using it too heavy  :laugh:

Yes, a bit too realistic looking maybe. Had to pull the blinders when working on it stopping any a nosy neighbors call it in ;D

One easily could go with the red side button and keep the orange tip plug if too realistic.

Thanks again guys!
"One coin to rule em' all"

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Re: JUZI - The mini UZI light gun build
« Reply #14 on: July 22, 2018, 09:06:54 am »
I remember when I was a kid they started putting those red plugs on the end of toy guns. We always spray painted them black.

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Re: JUZI - The mini UZI light gun build
« Reply #15 on: July 22, 2018, 06:53:34 pm »
I have to say this is the coolest, innovative, arcade diy add-on i've ever seen.

I'd patent that puppy, refine it and mass produce it.   :notworthy: :notworthy: :notworthy: :notworthy: :notworthy:
   

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Re: JUZI - The mini UZI light gun build
« Reply #16 on: July 23, 2018, 03:38:00 am »
That is soooo cool.

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Re: JUZI - The mini UZI light gun build
« Reply #17 on: July 26, 2018, 02:09:19 pm »
Nice. btw - is that Battle of the Planets?

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Re: JUZI - The mini UZI light gun build
« Reply #18 on: July 26, 2018, 02:16:31 pm »
Hehe yes, it is a themed cab from the Wii title "Tatsunoko VS Capcom" but I titled it "Human VS Machine - Ultimate Challenge"  ;D

http://i0.wp.com/shoryuken.com/wp-content/uploads/2017/02/tatsunoko_crop_750x400.png?fit=750%2C400&resize=750%2C400
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Re: JUZI - The mini UZI light gun build
« Reply #19 on: September 18, 2018, 04:32:54 am »
After some heavy play-testing I thought that I had to, even though this is NOT how the real mini UZI suppose to behave, connect the top cocking handle to the solenoid for a more arcade style of firing. This sounds more metallic, which also adds to the fun and more realistic I think!  :angel:

Here is the top cover (bottom view) with the cokcing handle which from stock is connected to a spring and ony works as a pull-and-return gimmick.



I removed the spring and created a latch of a metal sting covered in shringking tube. This is just a prototyp, but I thought it can stay in there and I reinfoce this function if broken as
I intentionally just wanted to see if this was a good idea or not. (edit: It was a great idea!)



Here it is screwed tight under the NAMCO recoil top screw. The task now is to catch the hook from the under side of the cocking handle so it stays connected.
I wanted to do this so can open this part fairly easy if needed.



Linked together


Video of the now recoiled cocking handle

-- VIDEO --
Playing "The new feedback in action"
https://youtu.be/5Bg3PDUvVPI
Playing "Behind... Enemy lines" New recoil mod with attached cocking handel to solenoid."
https://youtu.be/ZaIeHOPyQsU
« Last Edit: September 19, 2018, 03:54:23 am by gstav »
"One coin to rule em' all"

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Re: JUZI - The mini UZI light gun build
« Reply #20 on: September 18, 2018, 04:28:48 pm »
Simply AMAZING  :notworthy:

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Re: JUZI - The mini UZI light gun build
« Reply #21 on: September 18, 2018, 05:32:50 pm »
Superb. Gonna have to rip me up my old aimtraks and make me something similar. If only lightguns weren't such an ass to store in your cab...

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Re: JUZI - The mini UZI light gun build
« Reply #22 on: September 19, 2018, 03:49:01 am »
Thanks guys!

Yes, I also found it hard to mount an arcade gun to a standard cabinet. Front mount is a no go as it would poke the player and on the side would normally need a holster of some kind.
I thought they where a bit steep in price to get ithem shipped to Sweden, and also if I wanted to remove the gun they would just sit there over the vinyl artwork.
So I just mounted a long screw in the side which I then covered in shrinking tube.

Now when a gun is not connected minimal coverage is affected to the side art.
The only visible parts is the pin and the female GX16 connector for the module cord.



Here is how it looks with each respectively gun mounted.



The good thing a bout the cord also beeing modular is that you can display the guns when not in use aswell as hide them for underaged players(!)



« Last Edit: September 19, 2018, 03:58:00 am by gstav »
"One coin to rule em' all"

gstav

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Re: JUZI - The mini UZI light gun build
« Reply #23 on: September 23, 2018, 04:30:10 am »
Did a remake of Operation WOLF with own animations. Turned out pretty funny although I don't know how well it will go with the rest of the showcase video for the gun.
What do you guys think?



--[ Video ]--
https://youtu.be/jUTBtCtbXdc
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Re: JUZI - The mini UZI light gun build
« Reply #24 on: September 23, 2018, 09:27:09 pm »
Nice build! It's the only good diy (or commercial) home light gun project I have ever seen.

I have the BB version of that mini Uzi. I was thinking of using it to make a mold to cast a new light gun shell. I hate my Ultimarc light guns. I feel like I paid $100 for a $15 product...I literally lost interest in shooting games when they arrived. custom is the only option.

I was going to use a regular mini dc 6000rpm motor to cycle a bolt for the full auto recoil. I just don't understand how to make a solenoid cycle rapidly so there aren't many other options. Do you have to be able to write code for the "custom chip"?

The recoil kit from Ultimarc lacks full auto capability so it is essentially just an overpriced cheap solenoid to stick inside the gun shell yourself. Why can't anyone make a decent light gun for home use???

I feel like there should be an off the shelf product to allow you to cycle a 12v solenoid but apparently, the only way is for each of us to invent one for every project...


gstav

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Re: JUZI - The mini UZI light gun build
« Reply #25 on: September 24, 2018, 04:07:35 am »
Nice build! It's the only good diy (or commercial) home light gun project I have ever seen.

I have the BB version of that mini Uzi. I was thinking of using it to make a mold to cast a new light gun shell. I hate my Ultimarc light guns. I feel like I paid $100 for a $15 product...I literally lost interest in shooting games when they arrived. custom is the only option.

I was going to use a regular mini dc 6000rpm motor to cycle a bolt for the full auto recoil. I just don't understand how to make a solenoid cycle rapidly so there aren't many other options. Do you have to be able to write code for the "custom chip"?

The recoil kit from Ultimarc lacks full auto capability so it is essentially just an overpriced cheap solenoid to stick inside the gun shell yourself. Why can't anyone make a decent light gun for home use???

I feel like there should be an off the shelf product to allow you to cycle a 12v solenoid but apparently, the only way is for each of us to invent one for every project...

Thanks for the kind words!
Don't have any experience of the pre-made AimTrak guns, but I did bought the recoil kit with the solenoid, and the thing you get there really is non fireing solenoid when aiming off-screen.
Good effect for my Namco single shooter gun, but not a feasible add-on to this build.

I also think you should go custom or you will never get the true arcade feel. But good for those who just want to step up from playing with the mouse.
That's why did the mod to a real Namco gun with the oiginal solenoid for that good ol' "clack-clack-clack".  :angel:

The solenoid used in the juzi project also is a Namco orignal solenoid, and I do not think you can push the fire rate much more without raising the voltage as there is a bit of time for pull the rod befor release.
The solenoid is designed for 24v max i think and I running them on a 19v laptop supply.

For faster RPM one shoud go either with a shaker motor, which I tried with initially, or if I had the know how, one should build like on the real Operation WOLF gun.
(Not my pictures)




I did see the Terminator Salvation repair video, and they do use the same method but with a extended shaft to push to your shoulder. See link below:
https://www.youtube.com/watch?v=NyoS2q-11PA


You do need a code written to the Audrinuo mudule to control the state of the selected fire rate and how to puls the signal to the solenoid and to the Aimtrak module.
Not my area though, but according to mr.Juice who helped me with the code, this was easy as pie for him. It was all just which outout to pulse to in what interval and delays.  ::)

You can connect anything up to what the board can handle. I think around 50V is no problem, but my connected solenoid would think otherwise. Dont want to burn it as they are really expensive to buy new and har do get used in good condition.

I think of making a new gun for my brother using a shaker motor placed in the clip with the shake weight in the housing of the top opart of the gun. Then the chip just have to pulse on and of as long as the full fire is needed. Would feel a bit different and I could use a smaller gun. Thought of a Mac-10 or a micro-UZI. But that's somewhere in the distant future as of now..

I could check with him if a module could be created in some way. Soleding it was a bit of time consuming as I did want it to be as small as possible.
« Last Edit: September 24, 2018, 04:12:32 am by gstav »
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Zebra

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Re: JUZI - The mini UZI light gun build
« Reply #26 on: September 24, 2018, 11:33:53 am »
Writing code of any sort, even simple code, is beyond my abilities but using a regular motor to create linear motion is in my wheel house. I just built a diy CNC milling machine so I can visualize how to make it work with a high speed mini motor and a small linear rail. Not unlike what's in your pic.

I am ok with it not being linked to the software. I don't need it to stop cycling when I run out of ammo etc. It's more important for me to create something that recreates that Operation Wolf feel I have fond memories of.

I remember being amazed by the full auto recoil of the Operation Wolf gun when I was a kid. Those games become very ordinary and boring when played with a mouse or an Ultimarc gun. They have a few used Terminator 2, Operation Wolf and Operation Thunderbolt arcade guns on eBay. I'm tempted to start with one of those.

The other idea I was thinking through for cycling a solenoid is to do it mechanically. I.e. I would have the solenoid break the circuit when engaged and recreate it when it snaps back in to place.

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Re: JUZI - The mini UZI light gun build
« Reply #27 on: September 24, 2018, 12:28:56 pm »
 Aah, smart having the circuit break when the solenoid hits. That would create the same effect really. Also, if one would ju have the motor go with the trigger fire I thought of having double switches. One for Aimtrak and the other for closing the motor. Super easy. Would love to see your build when started.
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Re: JUZI - The mini UZI light gun build
« Reply #28 on: September 24, 2018, 01:25:01 pm »
I am going to experiment with a 12v long throw solenoid that I bought for another project. It's a question of whether I can make it cycle reliably with a mechanical circuit break. Then I have to check if it creates the right feel for a full auto sub-machine gun as my ability to vary the speed would be limited.

I also just ordered a 12v strobe light controller with a variable pulse speed. This may (or may not) be another easy and cheap option for turning a solenoid on and off rapidly. The mechanism required is not that different to a flashing light.

The weight, realism and how it's mounted also matters for me. One of the biggest let-downs with all currently available commercial home light guns is their pathetic lightweight plastic shells and lack of fixed mounting options. I'll never understand why, out of all the arcade guns ever made, they all chose to copy those awful red and blue Namco pistols. They were one of the least exciting arcade guns.

Surely, if you are going to copy an arcade design... the Operation Wolf (or even Thunderbolt) guns are the way to go. That's what I think of, or Terminator 2 or that super awesome sniper rifle game with the LCD screen in the scope.

Are you planning to fix your mini UZi to a base of some kind?

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Re: JUZI - The mini UZI light gun build
« Reply #29 on: October 01, 2018, 04:50:16 am »
Cool! Would love to see the progress of your testing of that strobe controller when you get to it friend!
Don't know if 12V will do or not, but I noticed that for example, losen the top so that the metal could rattle a bit made a whole new feel to the gun, so I guess you could adjust things or the right feel too.

I aso hade the plastic and hollow feel of cheap as arcade guns. You want the weitght and also if possible some cold metal parts  :cheers:
Sure, I have a NAMCO gun too, but that is just for the Point Blank and Time Crisis typ of titles using them. Otherwise I go with my JUZI nowdays.

Hehe! Would be awesome with a Silent Scope kind of gun. But I don't think that that tite is playable as of yet in MAME, and just with mouse in PSCX2 (but I would love to be wrong on this...)
2 games with this sniper function is Golgo 13 (rom golgo13) and Golgo 13 Kiseki no Dandou (rom g13knd). Well worth checking out.

https://www.youtube.com/watch?v=cZpOXo_jMY0

I do not think I will ever mount my gun on this cabinet. And frankly, this two guns of mine is not for mounting either as they have aimtrak.
If you want to go with mounted guns you should set them up using a analog joystick in the base for aiming. (also mych cheeper to build).
If I did have a 2nd cabinet and another wife(!) I might concider doing a shooter cab  :laugh:
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Re: JUZI - The mini UZI light gun build
« Reply #30 on: October 15, 2018, 07:54:20 pm »
Cool! Would love to see the progress of your testing of that strobe controller when you get to it friend!
Don't know if 12V will do or not, but I noticed that for example, losen the top so that the metal could rattle a bit made a whole new feel to the gun, so I guess you could adjust things or the right feel too.

I aso hade the plastic and hollow feel of cheap as arcade guns. You want the weitght and also if possible some cold metal parts  :cheers:
Sure, I have a NAMCO gun too, but that is just for the Point Blank and Time Crisis typ of titles using them. Otherwise I go with my JUZI nowdays.

Hehe! Would be awesome with a Silent Scope kind of gun. But I don't think that that tite is playable as of yet in MAME, and just with mouse in PSCX2 (but I would love to be wrong on this...)
2 games with this sniper function is Golgo 13 (rom golgo13) and Golgo 13 Kiseki no Dandou (rom g13knd). Well worth checking out.

https://www.youtube.com/watch?v=cZpOXo_jMY0

I do not think I will ever mount my gun on this cabinet. And frankly, this two guns of mine is not for mounting either as they have aimtrak.
If you want to go with mounted guns you should set them up using a analog joystick in the base for aiming. (also mych cheeper to build).
If I did have a 2nd cabinet and another wife(!) I might concider doing a shooter cab  :laugh:


Funny you should say that. I came to the same conclusion myself.

I hadn't fully understood that my Aimtrak works more like a mouse than a light gun (so no wonder it doesn't work that well). I.e. Instead of the gun reading the position you aim at on the screen, the IR sensor is trying to read the position of the gun. So... No matter how long I spend calibrating, the next time I turn it on, the crosshairs never seem to line up with my sights (because I moved a little).

After doing further research, I was surprised by how many of my favorite arcade shooters use positional guns instead of light guns. So, given how mame treats guns (I.e as a mouse) and seems to allow a mouse type devices to be used even on light gun games, I am back to the idea of using a real T2 or Operation Thunderbolt gun on a fixed pedestal.

I have ordered an A-pac from Ultimarc which allows up to 4 pots plus some buttons to connect to a mame PC through a USB port. If I can figure how to use rotary potentiometers in mame, converting a real T2 gun may be as simple as connecting it's pots to my A-pac.

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Re: JUZI - The mini UZI light gun build
« Reply #31 on: October 16, 2018, 03:44:48 am »
Yes, all PC emulated light gun games is operated with a mouse or a gun acting like one.
For "Generation X" or "T2 - The Arcade" and many other games you would be playing with a joystick from stock settings,
but in mame you just configure thew joyX and joyY analogue to be played with, a mouse for example.

You you should be able to configure all games to use a joystick if you want to, and in some PC games I guess you could use like a joy2mouse app
like xpadder if it dosen't want to take a joy, so you should be fine with a pedal mounted gun too.

A-pac should be a super easy setup. The you go inte the analog settings in MAME and set sensetivety and speed for each direction and you can mimic the arcade feel pretty much spot on.
you only need 2 pots for X, and Y and the rest for trigger buttons.

Did a ps2 gamepad controller hack for my mini racer to Pi3 where I connected the left thumb joy to the board. Got full analog steering in MAME, so on a PC with a Ultimarc-product - it would be a breeze :D

https://youtu.be/foz0K6tnmHo
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Re: JUZI - The mini UZI light gun build
« Reply #32 on: November 19, 2018, 09:58:37 am »

I finally did a video for my light gun:
JUZI SHOWCASE VIDEO
https://youtu.be/hR1O5ES9U6k

Any input welcome  ;D
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Re: JUZI - The mini UZI light gun build
« Reply #33 on: November 19, 2018, 07:15:54 pm »
Holy frig man, this is the coolest arcade gun ever. Sweet placement in Chun Li's hand too.  :applaud:

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Re: JUZI - The mini UZI light gun build
« Reply #34 on: November 20, 2018, 10:20:01 pm »
That is really cool, and that's coming from someone who's built an actual uzi from a parts kit (cut up for import) into a working semi-auto firearm. Amazing how close the airsoft shell and some of the internals are to the real thing (mine is a full sized version). Sure might be something I'd might look into down the road, as I like that full auto feedback you came up with.

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Re: JUZI - The mini UZI light gun build
« Reply #35 on: November 21, 2018, 02:15:20 am »
Holy frig man, this is the coolest arcade gun ever. Sweet placement in Chun Li's hand too.  :applaud:

Tanks Ninjadog! Yes the artwork kind of fitted the guns placement even though it was installed later on.  :angel:
Might install some soft led light to the back of the hinge for a soft glow, but as it is placed next to my pin this might be overkill as of now.
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Re: JUZI - The mini UZI light gun build
« Reply #36 on: November 22, 2018, 10:10:55 am »
Thanks @Ixliam!

I also found the likeness whem browsing blue prints from the real mini uzi gun.
I know that the cocking handle should not be in on the action but it looked so cool + the added metallic effect, so I just could not get back after trying it.
Then I read that there is both open and closed bolt firing? Thought of having open but, it would be better to have the closed typ when others played it :D
Sadly I couldn't retrofit the original bolt which also looked as the original as the namco solenoid is a big mother, so I had to go with a fake plastic lid to run on the inside of thebolt opening.
The real gun firing on Co2 should be pretty darn powerful as seen in youtube vids.

Maybe it is cheaper to build it from real parts if one could acces it as the air soft gun is rather pricey.
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Re: JUZI - The mini UZI light gun build
« Reply #37 on: January 02, 2019, 07:27:35 pm »
Please can you share the code used to get full auto recoil?

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Re: JUZI - The mini UZI light gun build
« Reply #38 on: January 03, 2019, 04:12:49 am »
Please can you share the code used to get full auto recoil?

I checked with the authour and I got the permission to release the code so head back to the first post and you will find it there, both for analog potentiometer and digital push button fire selection options ;D
« Last Edit: January 04, 2019, 02:46:22 am by gstav »
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Re: JUZI - The mini UZI light gun build
« Reply #39 on: January 03, 2019, 11:09:23 am »
Really like the aerospace connectors you used. Shamelessly copying the idea for my cabient.

 :angel:

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Re: JUZI - The mini UZI light gun build
« Reply #40 on: January 04, 2019, 02:50:41 am »
Haha no shame in that at all Sir!
It works awesome and sits perfect when the ring is tightened. Also great in my case having multiple Aimtrak guns using only one cord and having the unused guns neat on display. A solid win. Use a GX16 5pin minimum for a build as mine. (USB data 2pins, GND, 5v, solenoid voltage pin)

Looking forward to see your mod!
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Re: JUZI - The mini UZI light gun build
« Reply #41 on: January 04, 2019, 10:22:37 pm »
My first step is to just use those sweet connectors to make the guns easily disconnectable. I've got a couple in hand and am happy with them. 8 pin.

Later on, I REALLY like the idea of having custom guns on the shelf with interchangeability like you got going on. Seriously sick.


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Re: JUZI - The mini UZI light gun build
« Reply #42 on: January 05, 2019, 02:45:07 am »
Yes! It's great and if you ever got a broken cord, you just have to replace or fix it without the gun in the mix. I really have 6pin connectors, but 5pin is minimum. Guess it's just more crowded in the housing with more.

Only downside is the added work on the cable and the cab mount, if one want to disconnect the cable completely.
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Re: JUZI - The mini UZI light gun build
« Reply #43 on: January 09, 2019, 07:07:23 pm »
Please can you share the code used to get full auto recoil?

I checked with the authour and I got the permission to release the code so head back to the first post and you will find it there, both for analog potentiometer and digital push button fire selection options ;D

Thank you.

I have been having a frustrating time finding components that survive full auto recoil... the on / off pulse seems to destroy relays and the heat generated destroys most solenoids.

I just ordered some solid state relays to see if they can survive a 555 circuit.

What solenoid are you using for full auto and how have they lasted? It took less than one game with full auto recoil (using an Aimforce dongle) to destroy the solenoid and mosfet in the Ultimarc recoil kit.

I just ordered some real arcade gunblade guns which use a motor for recoil. I'm thinking this might be best.

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Re: JUZI - The mini UZI light gun build
« Reply #44 on: January 10, 2019, 05:52:45 am »
Hi pal! I don't know if a 555 would be any different except o my setup with audrino you can change the fire mode from single - burst (tre real single shots to Aimtrak) or full auto.

My solenoid does not get ot at all running on a laptop supply 19v, think it is made for a 24v power supply originally.

It is an original Namco solenoid which I harvest from a broken time crisis gun.

Doing a new build now with a plastic rifle (log to come) and I have a smaller solenoid spec 24v, but same size as ultimarc. De sent get hot either though I have to test it in game but have no Aimtrak as of yet.

Also have a shaker motor in this build which is a neat effect indeed. Just wanted the solenoid as it also have a small sliding recoil part.
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Re: JUZI - The mini UZI light gun build
« Reply #45 on: January 11, 2019, 03:03:42 pm »
Oh man, that is amazing. I sent you a mp.   :applaud: :dizzy:

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Re: JUZI - The mini UZI light gun build
« Reply #46 on: January 16, 2019, 06:54:57 pm »
Hi pal! I don't know if a 555 would be any different except o my setup with audrino you can change the fire mode from single - burst (tre real single shots to Aimtrak) or full auto.

My solenoid does not get ot at all running on a laptop supply 19v, think it is made for a 24v power supply originally.

It is an original Namco solenoid which I harvest from a broken time crisis gun.

Doing a new build now with a plastic rifle (log to come) and I have a smaller solenoid spec 24v, but same size as ultimarc. De sent get hot either though I have to test it in game but have no Aimtrak as of yet.

Also have a shaker motor in this build which is a neat effect indeed. Just wanted the solenoid as it also have a small sliding recoil part.

Another project?  ???  :banghead:

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Re: JUZI - The mini UZI light gun build
« Reply #47 on: January 19, 2019, 06:11:05 am »
My WIP tfor a Aimtrak SMG using a Tek Recon - Havok Blaster.



* Fully working recoil with a solenoid and using a vibration motor as well!
* 3 fire modes single/burst/full auto as in the JUZI,same PCB but this time I have an Audrino NANO. this is bacause I needed the extra outputs to control some cool light effects in the mag window :D
* Trigger - Pump trigger - 3rd button on pump handle
* same module system using the GX16 female conector

Here's a sneak peek on the project  ;D

https://youtu.be/Ayx2o0drq6M
« Last Edit: January 19, 2019, 06:21:22 am by gstav »
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Re: JUZI - The mini UZI light gun build
« Reply #48 on: January 19, 2019, 09:30:50 am »
This is so awesome. Sooo awesome.

I have to do this.

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Re: JUZI - The mini UZI light gun build
« Reply #49 on: January 21, 2019, 01:25:42 pm »
Thanks for the kind workds mate! You really should do it!

I don't want to clutter my own thread but this light gun also uses the JUZI module so it is kinda proper though I will post in it's own thread.
Problem is my motherboard died on my main computer so my pictures is a bit on lockdown! :D Stay tuned!
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Re: JUZI - The mini UZI light gun build
« Reply #50 on: January 23, 2019, 02:36:09 pm »
Oh man, how much I envy you.  :notworthy: :dizzy:
I think this TEK is even more interesting than Juzi (Juzi is also a beautiful weapon) this TEK looks more arcade lightgun. You use an original namco solenoid or just aimtrak kit? please advise when you publish this new project. I have a dream to have some lightgun for my arcade cabinet. Congratulation

PD: I'm still waiting for the digispark module to try it for the second time.
« Last Edit: January 23, 2019, 02:54:30 pm by khoubash »

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Re: JUZI - The mini UZI light gun build
« Reply #51 on: January 30, 2019, 07:37:36 pm »
Hi pal! I don't know if a 555 would be any different except o my setup with audrino you can change the fire mode from single - burst (tre real single shots to Aimtrak) or full auto.

My solenoid does not get ot at all running on a laptop supply 19v, think it is made for a 24v power supply originally.

It is an original Namco solenoid which I harvest from a broken time crisis gun.

Doing a new build now with a plastic rifle (log to come) and I have a smaller solenoid spec 24v, but same size as ultimarc. De sent get hot either though I have to test it in game but have no Aimtrak as of yet.

Also have a shaker motor in this build which is a neat effect indeed. Just wanted the solenoid as it also have a small sliding recoil part.

I took a break from trying to get my solenoid recoil guns working in mame to finish my LA Machine Guns mame recoil gun. It's a lot easier as it uses a gear motor for recoil so you only need a relay:

https://m.youtube.com/watch?v=k6u8DKqdfMM

The full auto recoil is awesome on games like T2 and Alien 3 as the mechanism moves the whole gun back and forth when it recoils making it feel a little more "real".

Now it's back to the frustrating solenoid recoil project. I bought the arduino thing that I thought you said you had used but now that it's here, I'm not sure I bought the right thing. It has a USB cable but my PC doesn't seem to recognize it's existence so I can't see how you upload any code to it... does it need extra software?

I also purchased a PAC Drive to have a go at using Mame hooker but that software is the hardest and least intuitive thing to use since the MS Dos days. So far, I have only been able to use it to turn on a Christmas light (but not turn it off)....

It's so annoying. Why can't they just have software with a drop down menu so you can click "output 1, solenoid, activate by joy 2 button 1 (the trigger)" etc.




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Re: JUZI - The mini UZI light gun build
« Reply #52 on: February 01, 2019, 11:30:34 am »
Oh man, how much I envy you.  :notworthy: :dizzy:
I think this TEK is even more interesting than Juzi (Juzi is also a beautiful weapon) this TEK looks more arcade lightgun. You use an original namco solenoid or just aimtrak kit? please advise when you publish this new project. I have a dream to have some lightgun for my arcade cabinet. Congratulation

PD: I'm still waiting for the digispark module to try it for the second time.

Hehe! Thanks! I also think that the TEK is something else, that's also why I'm motivated as having the same type of guns would be a bit unnecessary imo.
Also fun to incorperate a shaker motor to the kick of solenoid + some led animations for IDLE[ib] and FIRE, mode.  :angel:

I will post  here for sure when I have got a new motherboard as my main pc broke down, so all my pics is stuck in there for now :(

I took a break from trying to get my solenoid recoil guns working in mame to finish my LA Machine Guns mame recoil gun. It's a lot easier as it uses a gear motor for recoil so you only need a relay:

https://m.youtube.com/watch?v=k6u8DKqdfMM

The full auto recoil is awesome on games like T2 and Alien 3 as the mechanism moves the whole gun back and forth when it recoils making it feel a little more "real".

Now it's back to the frustrating solenoid recoil project. I bought the arduino thing that I thought you said you had used but now that it's here, I'm not sure I bought the right thing. It has a USB cable but my PC doesn't seem to recognize it's existence so I can't see how you upload any code to it... does it need extra software?

I also purchased a PAC Drive to have a go at using Mame hooker but that software is the hardest and least intuitive thing to use since the MS Dos days. So far, I have only been able to use it to turn on a Christmas light (but not turn it off)....

It's so annoying. Why can't they just have software with a drop down menu so you can click "output 1, solenoid, activate by joy 2 button 1 (the trigger)" etc.

Wow, thats a big mother of a gun pal!!!  :applaud: Guess it is a bit hard to use in a normal cabinet and might need its own dedicated cab. Would love a lightgun dedicated cab for sure if I had the room for it.
The Audrino clone I used was the "Digisparks Attiny85" but any audrino would do. I guess smaller gives less outputs. Also used a Audrino Nano which works too.

I would love to help and have tried to help a nother member previously so I could also post my diagram here so you can see + the code I used for that very board.
You can use another audrino setup but then one have to specefy the correct outputs to match!

In this picture you can se the digisparks connected

*P1 goes to the yellow wire, "solenoid pin"
*P4 is not connected on the pic, but should go to the Aimtrak module.
* GND between the 24v solenoid power supply should be common and connected to the Audrinos GND



As the Digisparks is a clone you want to place the special .h file in the same folder as the file.
Both are found here: https://www.dropbox.com/s/mknl5sslcmv1ayq/JUZI_Code07_button-digispark.zip?dl=0

Also, when programming the digisprk you must wait befor the programming button is pushed befor connecting the USB.

You also need a special library for Digisparks in order to find the device in the Audrino programmer.

I did an Installation guide so you can program your digisparks and/or Audrino Nano clone here.  :dizzy:
http://pasted.co/0583b38e
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Re: JUZI - The mini UZI light gun build
« Reply #53 on: February 01, 2019, 06:48:17 pm »
I think that attiny85 is the same thing I bought. Are you saying that, in order for the computer to recognize the device, you need to press a button on it? I can't see any buttons...

If I misunderstood, how do you load code or software onto it?

I'd have another go if I could figure out that part.

I was thinking to also try connecting the trigger of my T2 solenoid gun to my Aimtrak and connecting the Aimtrak recoil board to the T2 solenoid so I could use my Aimforce dongle for full auto.

The Aimtrak gun and kit is low quality garbage and the aimforce dongle only works with an aimtrak. As I am never going to use the Aimtrak as a gun again, maybe it might have some limited use as a recoil board... that is if I can get it working again....

The aimforce dongle destroyed the Aimtrak recoil kit in 3 minutes. Now it engages the solenoid as soon as you connect a psu. I'm guessing the mosfet burnt out.

Btw, I don't have dedicated cabs. I mounted the fixed guns on an aluminum T-slot stand which is on wheels. This allows me to easily switch out control panels for different types of games.


Zebra

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Re: JUZI - The mini UZI light gun build
« Reply #54 on: February 01, 2019, 09:45:45 pm »
Also... I wanted to ask why you chose to use a mosfet instead of a solid state relay for this project?

I can't seem to make any of my mosfets survive for more than a few minutes of rapid on / off switching. They just get hot and melt the wires...

I haven't done enough testing to know if a solid state relay can survive full auto switching. Mechanical relays certainly can't.


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Re: JUZI - The mini UZI light gun build
« Reply #55 on: February 02, 2019, 11:05:54 am »
That's insanely cool that you are able to completely switch out the control panels. Would love that for driving games as of now, no is installed on my cab.

I don't know if the spec of your MOSFET is to low? Guess it's quite the amp going through. Mines not even get hot feeding it with the 19v laptop supply.

Here is another video of the TEK with a second digispark just for controlling the leds in the magazine. Pulsing light when idle and flashing sharper light upon each solenoid pulse. Feels pretty arcade this way I think.  ::)

https://youtu.be/ZjtRKtqg3Pc
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Zebra

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Re: JUZI - The mini UZI light gun build
« Reply #56 on: February 03, 2019, 06:39:14 pm »
That looks nice, you should add a stock to make it more comfortable to use for extended play.

I generally prefer a rifle to a pistol for extended use (with any type of gun). It feels more natural for full auto games and easier to aim.

I am on the hunt for a deal on a Teraburst or op Thunder Hurricane gun shell. I have the recoil motor and slide mechanism for one so it would be an easy and awesome full auto Guncon conversion.

My second choice would be a Crisis Zone arcade gun but I have never see a deal on a used one on ebay (or anywhere else).

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Re: JUZI - The mini UZI light gun build
« Reply #57 on: February 05, 2019, 03:49:57 am »
That looks nice, you should add a stock to make it more comfortable to use for extended play.

I generally prefer a rifle to a pistol for extended use (with any type of gun). It feels more natural for full auto games and easier to aim.

I am on the hunt for a deal on a Teraburst or op Thunder Hurricane gun shell. I have the recoil motor and slide mechanism for one so it would be an easy and awesome full auto Guncon conversion.

My second choice would be a Crisis Zone arcade gun but I have never see a deal on a used one on ebay (or anywhere else).

Both the JUZI have a foldabel stock, and the TEK have a retractable one.  ::)
I  found 2pcs Terraburst shells here pal https://www.ebay.com/itm/arcade-gun-set-for-Konami-Teraburst-Arcade-untested/192657680173?hash=item2cdb4ae72d:g:6h8AAOSwJhdbm7aq:rk:23:pf:0
Also some Time Crisis guns, but they are expensive to come buy, like 150us/each and they noramlly try to sell them for parts too.  :'(
http://"https://www.ebay.com/itm/Time-Crisis-arcade-plastic-gun-part-295/254060798549?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D20131003132420%26meid%3D6173561669234fe29f88cb179639a623%26pid%3D100005%26rk%3D5%26rkt%3D6%26sd%3D192657680173%26itm%3D254060798549&_trksid=p2047675.c100005.m1851


I've seen a Crisis Zone gun, but they are pretty expensive and rare, priced like the Operation G.H.O.S.T. guns
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Re: JUZI - The mini UZI light gun build
« Reply #58 on: February 08, 2019, 02:51:15 pm »
here is one more clip of the TEK project, demo the 2 LED sequences on idle/fire and the three buttons
trigger (fire) - pump button (grenade) - pump action (flame thrower) I will make its own thread as soon as my PC is back up running.

https://youtu.be/eR3McCNupbo
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Re: JUZI - The mini UZI light gun build
« Reply #59 on: February 09, 2019, 07:26:26 pm »
#gstav this is awesome! is much required to learn arduino? or is it just plug and play?

with the GX16 6 pins how does this connect to the PC?

Also where do you change the 3 fire modes single/burst/full auto? I can't see where you make the changes in the video.

I purchased two Tek Recon Havok :D awaiting the project thread now to know what else I need to buy!
« Last Edit: February 10, 2019, 08:39:52 am by wallmachine »

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Re: JUZI - The mini UZI light gun build
« Reply #60 on: February 10, 2019, 12:56:17 pm »
 :applaud: Awesome, 100% Arcade. What solenoid do you use?

Zebra

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Re: JUZI - The mini UZI light gun build
« Reply #61 on: February 10, 2019, 06:35:34 pm »
I found these ready made 555 signal generator boards on eBay for $7 delivered. It's an off the shelf full auto recoil solenoid solution:

https://m.youtube.com/watch?v=-J4qC2pfj3o

I wish I would have found these at the start. I couldn't buy all the components for what it costs for a ready made one. They are infinitely adjustable for frequency (recoil speed) and duty cycle.
« Last Edit: February 11, 2019, 11:16:53 am by Zebra »

gstav

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Re: JUZI - The mini UZI light gun build
« Reply #62 on: February 11, 2019, 01:05:21 am »
#gstav this is awesome! is much required to learn arduino? or is it just plug and play?

For you to build a JUZI module it is just soldering and connecting a Audrino board to the components correctly (I use an Nano in the TEK build)

The Audrino must be programmed, but the code is already done to work pretty much directly.

You might change the value on how long the solenoid should be ON and OFF per shot if needed, and if you are using a potentiometer (Analog) way of selecting fire (default in the code) or if you want to cycle the modes with a button (Digital).

Pretty easy to find and modify, no programming skills needed :) just a matter of uncomment and comment lines. I'll see if I can make it even more easy when using digital or analog use.

Quote
with the GX16 6 pins how does this connect to the PC?

The GX16 is more of a handy connector so you can disconnect the cord both from the cab but also the gun itself, letting other guns built the same way sharing one cord.

I use 5 PINs so more is not necessary. As long as you follow your PIN setup, you can set them up as you please.

My setup is:

PIN1 - 12-24v (solenoid voltage)
PIN2 - 5V (from USB cord connected to PC)
PIN3 - DATA1 (from USB cord)
PIN4 - DATA2 (from USB cord)
PIN5 - GND (from USB + solenoid, common ground)

This gives you a one connection - ready to go cable.

Inside the PC the GX16 goes to the power supply from PIN1 and PIN5 and to a PC USB port from PIN2, 3,4 & 5.

In the gun PIN 2 and 5 feed the Audrino and Aimtrak (Aimtrak also get the DATA1 and DATA2)

Quote
Also where do you change the 3 fire modes single/burst/full auto? I can't see where you make the changes in the video.

I did not changed the fire modes in the video. It is just set to full auto.

On the right side of the gun you have a slide switch which stick into 3 positions out of the box.

I have connected a linear potentiometer to its plastic arm in the same fashion as in the JUZI build for it to change the fire mode. (this is the analog take and default in the code).

Quote
I purchased two Tek Recon Havok :D awaiting the project thread now to know what else I need to buy!

I will get a TEK build thread up even though my build is not finished and my main PC is broken *lol* but I guess I can perfect the thread during the way.

The components for a JUZI pcb used in the JUZI and TEK build is.

1x 330 ohm resistor
1x 1k ohm resistor
1x MOSFET
1x optocoupler
1x diode (optional, to protect the solenoid)
1x Audrino Nano board

:applaud: Awesome, 100% Arcade. What solenoid do you use?

It is a TDS-08A open frame solenoid 12-24v from ebay :)

I found these ready made 555 signal generator boards on eBay for $7 delivered. It's an off the shelf full auto recoil solenoid solution:

https://m.youtube.com/watch?v=-J4qC2pfj3o

I wish I would have found these at the start. I couldn't by all the components for what it costs for a ready made one. They are infinitely adjustable for frequency (recoil speed) and duty cycle.

Cool board! Indeed! And to a great price too!
Would you please link to the parts used if possible?  :applaud:
"One coin to rule em' all"

Zebra

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Re: JUZI - The mini UZI light gun build
« Reply #63 on: February 11, 2019, 11:31:40 am »
These are the NE555 signal generators I used in the video:

https://www.ebay.com/itm/USA-2-PCS-NE555-ADJUSTABLE-FREQUENCY-SQUARE-WAVE-GENERATOR-MODULE-5-15-VDC/261237806674?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

I don't know if they are the best but they work (so far). There are tons of different options for these boards on eBay. I also tried some small red boards but I couldn't make them work in terms of getting the right frequency.

I have a (slightly) more sophisticated one on order with digital controls and an LCD display for settings. I'll report back on how well they work when they arrive.

If you choose a different board, just make sure it's an astable one with two pots. There are also monostable timer boards variants which are only suitable for semi auto. They are easily confused (speaking from experience).

Zebra

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Re: JUZI - The mini UZI light gun build
« Reply #64 on: February 11, 2019, 02:32:13 pm »
The digital (controls) signal generator just arrived:



I haven't tested it yet but it looks easy enough to use. It seems more like the sort of thing you could incorporate into your control panel to allow easy and quick recoil speed adjustments.

  
 

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