low power almost nice looking pneumatic
Posted: Sun Sep 11, 2005 10:01 am
Alright, here's my newest almost nice looking and almost powerful little piston cannon that I've been working at for a LONG LONG LONG time. The chamber is 79 cm of 1" black iron, the barrel is 1/2" plastic electrical conduit tubing. The piston slides indise a 1" brass nipple, the bumper is a piece of air hose and the piston seat is a piece of union that had to be "loced titely" in place to get it to seal. First the pston just crack opened about 2mm even there was just a little friction but still seemed to be enough to make the gun not dryfire or fire loose projectiles at all. At this weekend I sanded the gaskets on the piston and now it has no friction at all, fires great. You would like to see the cannon now wouldn't ya?
So here it is
http://www.spudfiles.com/uploader/uploadFiles/ase.JPG
The valve
http://www.spudfiles.com/uploader/uploa ... ttiili.JPG
Outlet
http://www.spudfiles.com/uploader/uploa ... octite.JPG
Top of the piston
http://www.spudfiles.com/uploader/uploa ... etuosa.JPG
The back of the piston
http://www.spudfiles.com/uploader/uploa ... akaosa.JPG
Piston inside the brass nipple
http://www.spudfiles.com/uploader/uploa ... haalla.JPG
Another pic that gives you the idea of the fit
http://www.spudfiles.com/uploader/uploa ... haalla.JPG
The bumper
http://www.spudfiles.com/uploader/uploa ... uskuri.JPG
Some potatoes and berries shot to 1/4" plywood
http://www.spudfiles.com/uploader/uploa ... vaneri.JPG
A piece of paper shot to an empty can
http://www.spudfiles.com/uploader/uploa ... tolkki.JPG
So here it is
http://www.spudfiles.com/uploader/uploadFiles/ase.JPG
The valve
http://www.spudfiles.com/uploader/uploa ... ttiili.JPG
Outlet
http://www.spudfiles.com/uploader/uploa ... octite.JPG
Top of the piston
http://www.spudfiles.com/uploader/uploa ... etuosa.JPG
The back of the piston
http://www.spudfiles.com/uploader/uploa ... akaosa.JPG
Piston inside the brass nipple
http://www.spudfiles.com/uploader/uploa ... haalla.JPG
Another pic that gives you the idea of the fit
http://www.spudfiles.com/uploader/uploa ... haalla.JPG
The bumper
http://www.spudfiles.com/uploader/uploa ... uskuri.JPG
Some potatoes and berries shot to 1/4" plywood
http://www.spudfiles.com/uploader/uploa ... vaneri.JPG
A piece of paper shot to an empty can
http://www.spudfiles.com/uploader/uploa ... tolkki.JPG