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Registered Member #1542
Joined: Sat Jun 14 2008, 08:56PM
Location:
Posts: 3
Well I've made a single stage coilgun with a 10,000 uF 200v capacitor and SCR and some other stuff. Now I would like to make a mutli stage coilgun. But I'm mot sure how to go about this. I thought of timing it or using a sensor to trigger the coils. Can someone please lead me in the right direction.
Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: North Texas
Posts: 1040
using an optical sensor seems to be the best option, and they are very easy to use... they will trigger the proper SCR when the projectile has reached the proper distance from the next coil (if you use a small micro controller, you can experiment with delays and such to try to improve results rather than a strait up trigger.
Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: North Texas
Posts: 1040
a little too small, what I would do is get some IR photodiodes and IR LEDs and just align them over each other in the barrel (may have to use a visible LED and a photoresistor if too much light can enter the barrel...)
Registered Member #1542
Joined: Sat Jun 14 2008, 08:56PM
Location:
Posts: 3
I don't know much about optics and light. So you said that if disable light gets into the barrel that I shouldn't use IR. I'd like a sure firer method and I think that there is a good amount of light that gets into the barrel.
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Multi Stage Coilgun
