As I'm new to the whole spud gun thing any help would be greatly appreciated. I've been reading through this forum on and off for the past day to get a better idea of what I'm doing.
- Fire a projectile at decent maximum ranges 500 foot+
Have a projectile that shatters (non lethal) and spreads BBs
A projectile that can strike a person without creating damage
Use a coaxial barrel design
Be able to drop rounds into the barrel, and have them fire either automatically or manually (manual at first stages of development)
Electronic trigger to fire
After firing sequence is complete, re-pressurize chamber to be ready for next round
- Hollow, thin walled styrofoam projectile. Weighted to about 100 grams.
So basically this is what I've come up with. Solidworks model to come soon.
- Coaxial design
SCH-40 Pipe using 2" inner with 3" outer
Inner barrel 40" length (approximately equal to real thing)
Aluminum barrel spacers (or whatever else I can find in the shop)
Completely closed piston design
Piston actuated through solenoid (a linear solenoid not the solenoid valve)
CO2 tank (20 oz?) attached to 100 psi regulator attached to somewhere on the outer tank. (Hidden in box)
When trigger is pulled solenoid pulls back piston allowing air to flow and fire projectile
Solenoid returns to initial "closed valve" position and tank will re-pressurize
For a "drop" trigger, use IR interrupt circuit
Might explain better once I draw some pictures...
I'll also come up with the parts I'll probably use....
If someone can recommend a good 100 psi regulator for CO2 that would be great. (Fixed or adjustable)