Lightgun Recoil Circuit

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epicfatigue:
Hah my circuit is popping up everywhere.

I personally think a relay might be to slow.
And if it wasnt relays were not intended to be used as constantly as this would be it would more then likely burn out after awhile.

As i mentioned in e-mail the way to do this is program a small PIC, when it gets a ground value send a 5v 40ns pulse to pin x connected to a PNP transistor that would pull it to trigger the recoil.

If ground is received for more then 50ms loop above statement
You can go a step further and at a opti pin so all of this can only operate if its pointed at the screen.

But thats my 2cents

As above this circuit of mine wasn't made for games that were not designed for it. It was actually made for playing counterstrike with Recoil guns.
Which is the most fun i have ever had on a arcade.

bimm25e:
Hmm... So i've been thinking more and more about this and I think the way to go would be with a 5v/24V transistors, 555 timer, a small capacitor and potentiometers instead of resistors, that would allow me to make changes to the speed of the pulses and time between pulses without buying and swapping between a buttload of resistors, right? Lets say I just want one pulse per pull, the smei-auto mode if you will, does anyone know how would I accomplish that with a circuit? Is that just the capacitor and resistor in line running a transistor?

epicfatigue:
Bimmie i am very confused in what you are asking.

If you are talking about changing the timmer circuit dont!
As simple as the ciruit is alot is going on there mate when i built it i read about it for a week and understood what it was i was doing.

If you want to change the speed of the pulse's thats easy use a trim pot. (variable resistor)

Hold the trigger and turn it till you like the speed then simple pull it out and solder in that value, or keep the trim pot.

My advise to you is trail and error, and read and learn about what you want to do.
Electronics is very fan and nice and easy to learn.

bimm25e:
Yeah the problem is still that I am not using the aimtrak like everyone else seems to be. I'll have to use the signal generated by the JAMMA button (the trigger that i'll be pressing) to create my control signal.

Ideally I want to be able to toggle between a semi and full auto recoil
-I do NOT want to alter the operation of the trigger in any way, one pull = one pull
-I only have the trigger switch to work off of
-I want to be able to adjust the speed easily so I can set it appropriately without too much effort

it seems (to me, im not a pro at this by any means) like 2 circuits with a toggle selecting which circuit to use would be the way to go.

One circuit (single burst) could be controlled by just a small capacitor and a resistor, with a way to drain the cap when the trigger circuit is not closed (or normally closed as it were). - this seems to be illustrated by daoldman above quite nicely except it looks like that circuit is using 24v throughout and I would have a low voltage control with a seperate 24v driving the solenoid.

the other circuit (auto burst) could incorporate a 555 with variable resistors so I can play with the burst length/pause between bursts and match it up with the automatic fire in Area 51.

I dont know the voltage on a jamma button but I would use transistors to allow that voltage to control the 24V circuit i need to power the solenoid. My concern about the transistors is that I don't yet fully understand how 2 circuits are controlled by only 2 pins, this is where I'm at in my "weeks of reading" right now (haha i know that probably seems basic to you all but i did my crash course on relays so far so today is day 1 on transistor research.)

the reason my crcuit logic steps away from yours is that i don't have the nice aimtrak recoil control output, I have to operate off of trigger pulls only.

epicfatigue:
Ill send you a pm

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