Main > Lightguns
Wiring question about Alien Extermination guns.
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Howard_Casto:
To put it simply they don't feel right and with respect they don't play with ease.  Whipping a heavy old positional gun halfway across the screen in a split second isn't as easy as pointing a light gun.   The targets for the two types of games are designed with that in mind so while, yes, you can technically play games like virtual cop on a fixed gun you probably aren't going to have as much fun. 


The gun came in today and I've already integrated it into mamehooker officially.  I've added some quality-of-life improvements like a buffer for the two 7 segment digits and the ability to set one at a time, the recoil function having a value so one can just use "agr 1 %s%" instead of dealing with value breaks and the null command.  Also I don't know if the community is aware of this, but setting the numeric digits to "A" (hex value) will turn them off, so the new functions have support for this. 

On the hardware side of things my pots are wired backwards.   Some games have the ability to invert this, but since they all can't do it I think I better wire them up right to avoid future headaches.  Unless I'm missing something that green wire we discussed before doesn't seem to be hooked up to the fourth input although control panel shows 4 buttons.   I traced the wire back to the pcb and it's hooked to the same header as the 24v lines.  Maybe it does have something to do with vibration???

Anyway I probably need to start a fresh thread so I can add development notes.  Thanks for the help guys, I appreciate it.   
Howard_Casto:
Ok one more thing before I leave the thread.   A handful of games use the same electronics as these guns so I started looking in the manuals.   Far Cry actually has two coils in each gun and some of those unpopulated areas on header involve that.  They also show the wiring harness attached to these guns and the green wire is a secondary ground to prevent static discharge. 

All of that being said, that means we have an extra output to play with.   One could add an extra coil, or flash leds (with some resistors of course) ect. 
baritonomarchetto:
Ok, let me show you something, or I will look like the one who spokes with no art. Here is a positional gun project I worked on some time ago:

https://www.instructables.com/SNK-Positional-Gun-Arcade-Assembly-Retrofit/

You can bet I know what I am saying when I tell you to keep lightgun games into the equation ;)
Howard_Casto:
I don't understand why you are insisting I do something I don't want to do.  It's great if that's how you want to play so you go do that, but I'm not going to.   I'm going to use light guns for light gun games, but thanks for the info.   
baritonomarchetto:
Don't get me wrong Howard: it was only a suggestion from a forum fella to another :)
You are free to do what you want!  :cheers:
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