Tom

Alright well I'm planning to build a coil gun, and I don't want to jump into the project ignorant. I was hoping someone could help me with a few (more like a lot of) questions.

I understand how they work in a nut shell, a wire (probably copper) is wrapped around a tube, which leads to a capacitor, which leads to a switch, and then the circuit is completed. When the switch is activated, the capacitor sends a pulse to the coil, magnetizing it. This attracts possible ammunition to the center of the coil. The pulse is then subdued and the inertia of the projectile causes it to fly past the coil, out of the barrel, and hopefully into a target.

If I made an error, please feel free to correct me.

My questions include the following:

1. How would I wrap the coil for it to be the most efficient? Would the amount of layers, for example affect the velocity of the projectile?

2. Is copper the best choice?

3. What would be a good capacitor to use? (I know that is probably an ignorant question, but what is the most amount of joules I could have within a certain volume?)

4. Is there a point of power at which the system would overload or not work?

5. Where along the barrel would the coil best be placed?

I'm sure I have a plenty of more questions I've forgotten, so I'll probably be updating this. In the mean time, I'd appreciate any advice. Thanks!

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