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my piston cannon
Posted: Wed Feb 10, 2010 7:27 am
by Crna Legija
i made this 2 months ago and never posted bored at home thought ill share it with yall. i made the piston on drill press lathe out of nylon its got a o-ring and schrader valve with spring changed it opens at 5 psi. i need pressure gage and then a frige pump. i all so filled up the pilot with epoxy and drilled small holes and piston travel limited to the d4 rule
specs:
valve: 3/4 inch barrel sealing piston valve
pilot: blowgun
barrel: 60cm of 22mm conduit and 170cm of 16mm steel pipe
chamber volume: 1000 cc
operating pressure: 20-350 psi
on with the pics
Posted: Wed Feb 10, 2010 7:55 am
by Demon
Do not care of the flow coef but the seat diameter is on what your piston "seats"
Thats some nice power !
Posted: Wed Feb 10, 2010 5:09 pm
by Brian the brain
Very nice style you got there.
Finally we see another break barrel breech.
It's been a while.
You could do some more work on the wood though.It;s nice as it is, but if you round off everything so there are NO more flat surfaces, it will look even better.
Right now it's a bit blocky still.But as I said, it's nice as it is.
Make that VERY nice!
Keep up the good work!
Posted: Wed Feb 10, 2010 5:40 pm
by Patto
looks good man i really like your stock !!
what are you using as ammo ?
Posted: Wed Feb 10, 2010 6:56 pm
by Crna Legija
thanks for the kind words everyone
@btb
as for the stock i was going for a kind of sako trg-42 type stock for a hammer valve gun i made but it was week at 150 psi so i cut it in half and put it on this
@auspatto
for ammo i use 22mm bbs i got a shit tonne from my dads work and what every els fits in good. all so have made a couple darts