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Mini pengun
Posted: Tue Jul 30, 2013 11:40 am
by fenrir
Hi everyone! I've been a lurker and might as well post something.
This is a mini coax based on jor2daje's pengun. It has a solid rubber piston, 1/8 brass tubing for the barrel and 7/32 for the chamber. I don't have a shock pump, so it is crap at 160 psi. Btw it's my first build and I'm surprised that it actually works.
Posted: Tue Jul 30, 2013 11:52 am
by Gun Freak
Looking good! Penguns are fun, especially with >400 psi
You clearly did your research on this one. Congratulations on getting it working. Welcome to SpudFiles :occasion5:
Re: Mini pengun
Posted: Tue Jul 30, 2013 11:55 am
by jackssmirkingrevenge
Nice first effort
fenrir wrote:I don't have a shock pump, so it is crap at 160 psi.
Probably just as well, if the breech isn't reinforced the piston will probably dig into it.
Have a read through this thread:
http://www.spudfiles.com/forums/pneumat ... t7858.html
Posted: Mon Aug 26, 2013 10:51 am
by fenrir
Update: Well, it developed a leak (must be the poorly mixed epoxy) so I drilled it out. How do you reinforce the breech?
Posted: Mon Aug 26, 2013 11:45 am
by jackssmirkingrevenge
See if you can find some tube that slips over the end of the barrel, basically what you want to do is spread the contact area between breech and piston.