Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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Bluetooth
- Corporal 4
- Posts: 863
- Joined: Tue Jun 27, 2006 7:57 am
Sat Dec 09, 2006 11:59 am
In my pneumatic piston valve canon that is curently being built there is a spring behing the piston that keeps it sealed very well can i pump it from the end of the chamber?
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Slugfoot
- Private 4
- Posts: 79
- Joined: Sat Oct 21, 2006 4:57 pm
Sat Dec 09, 2006 3:06 pm
I have an over and under copper pneumatic that has a spring behind the piston which I fill from the muzzle end of the chamber with no problem whatsoever.
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noname
- First Sergeant 4
- Posts: 2698
- Joined: Mon Apr 10, 2006 9:19 pm
- Location: Bay Area, CA
Sat Dec 09, 2006 3:22 pm
If your piston is sealed with O-rings, you will need an equilization hole, but other than that you can fill from anywhere.
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SpudStuff
- Sergeant 5
- Posts: 1410
- Joined: Sat Dec 10, 2005 3:55 pm
- Location: Cupertino, California
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Contact:
Sat Dec 09, 2006 3:53 pm
You "can" but not with a fast fill rate. If the piston equilizes slower than the fill rate it will be theortically pushed backwards.
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Bluetooth
- Corporal 4
- Posts: 863
- Joined: Tue Jun 27, 2006 7:57 am
Sat Dec 09, 2006 4:41 pm
Well im pumping it with a bike pump anyway so i dont think that matters and i already glued it and will be submiting it tomarrow.
