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Many questions about multi-stage coilguns.

 May this be a big help for me and others who may stumble upon it.

1. I am controlling my coilgun with a PIC (PIC16F627A). What do I need to do in order to make it trigger SCRs?

2. What sort of external components do I need for the PIC (I'm sort of a newbie to electrical engineering)?

3. Regarding the actual coils, I am going to have 6 stages. How should the individual coils be made for maximum efficiency (I have heard that each successive stage should have less inductance, but I don't know exactly how this works)?

4. How does one go about slotting a metallic (brass) barrel while allowing optogates to work?

5. How exactly do you hook up the optogates to the microcontroller and to power sources?

Any help on any of these questions would be greatly appreciated.

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lemonie7 years ago
It sounds to me like you've seen one of these somewhere already - can you point us to it/them?

L
moshee (author)  lemonie7 years ago
The only resource I've found is:
http://old.4hv.org/index.php?board=19;action=display;threadid=5041
But it does not answer all of my questions.
If you're asking these questions, you really could do with finding a simpler project to start with.

Steve
moshee (author)  steveastrouk7 years ago
 I have already finished a simple one-stage coilgun. Now I'm just going to the next level, but there were some things I couldn't find out how to do...
There are several different type of coil gun, which type are you aiming to make ? 
can u give me ur msn email address so i can find u easily~because i am doing about multi-stage coilgun.
moshee (author)  steveastrouk7 years ago
 A 6-stage reluctance coilgun that's optically triggered. I may make it semi-automatic if I have the resources. So far I know it's going to have 940uF 400V per stage and the barrel is a thin-walled brass tube. Coils are using 20 AWG magnet wire.
hjay1 moshee6 years ago
can u teach me what component i need to make a multi-stage coil gun..can u please list down?? ^^
lemonie7 years ago
Here's some other sources:
www.angelfire.com/80s/sixmhz/xgun.html
www.powerlabs.org/multistagecg.htm
May be of some use.

L