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power assisted valve

Posted: Tue Jan 24, 2006 9:58 pm
by taterjim
This under over type cannon,a fairly large one has an assisted valve gizmo I made from pvc,a bolt, end caps,two washers ,piece of rubber,two nuts etc.
I saw the idea for a ram on this forum a few weeks ago and thought I would try it. It is just put together in this picture with duct tape and bungee cord to see if it would work and it worked better than I expected. It will shoot great er distances than any cannon I have built so far.

Posted: Tue Jan 24, 2006 10:12 pm
by taterjim
Since I know it willl come up I will give a little more detail on how the ram is
connected to the valve, The long bolt from the ram has a shorter bolt welded to the end at a right angle, the valve has a sturdy eye bolt threaded through the end and a nut to hold it in place the short bolt is slipped through the eye bolt with a washer on either side and a nut to hold it on. It works smoothly and doesn't snag.

Posted: Tue Jan 24, 2006 11:24 pm
by saladtossser
awesome!!! bloody awesome!!!
but get rid of the duct tape :P

Posted: Wed Jan 25, 2006 5:57 am
by Urban Ninja
Nice gun! Are you going to give a paintjob? Yeah salad tosser is right get rid of the duck tape and its an amazing gun :D !

Posted: Wed Jan 25, 2006 5:22 pm
by beebs111
what are you talking about? :x :evil: duck tape kicks ass 8)

Posted: Wed Jan 25, 2006 5:25 pm
by dragon finder
yea you can fix any thing with duck tape it could be man's best invention :lol:

Posted: Wed Jan 25, 2006 8:52 pm
by taterjim
I now have a large hose clamp holding the assembly together ,but unfortunatelly the bungee cord seems necessary to allow the unit a little flex
for smooth operation, It would work without it ,but it acts like a shock absorber and so far ,about 15 or 20 shots ,it has been trouble free except for a need to oil the ram unit at least once a week..A little better paint job might be forthcoming. As shown in the picture ,it is so loud when firing ,that I lenghtened the barrel to ablorb some of the power , and that increased the distance it will shoot generously.It is still in developmejavascriptemoticon(':P')
Razznt and already looks different than the picure ,actually it lookd a lot better.