Thanks man,MrCrowley wrote:It's a shame about the o-ring problem, I found on the V.A.L it was much easier to just use threaded adapters sometimes it's just hard to find the right ones. Other than that, and the very small porting, it looks pretty good.
edit: Your piston must be pretty damn heavy, are you even using a bumper? I would also glue your sealing face on, just around the edges to stop any air leaking through it.
Yeah I'm gonna try the 2" coupler and see if I can find either a plug or threaded adapter for the end cap.
I'll do that with the piston face, I've noticed after firing it a few times that it flares a bit on the sides, not that it's a big deal because of the 3/4" porting but since I already have it out definitely. The piston is not too terribly heavy, it would be comparable to a PVC piston but the bondo is very easy to work with AND sturdy.
I've been curious about the porting size and whether it's a factor or not. With air pressure in general it's going to take the easiest route to escape no matter what...kinda like water. In this case I opted for the 3/4" port because i already had the barrels made from my previous gun and wanted to use them. but does it really matter if air is escaping through a 3/4" port or a 2" port if all the air is coming out at once? Every time I fire there is no more air left, which tells me that it's all escaping. I dunno just some thoughts on the physics of it all.
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