SpudFiles

COD_FILLETS wrote:Never really cared much for the subtle differences between -er and -re endings.

Calibre is the proper English spelling, caliber is the US corruption... depends on which side of the pond you sit

VH_man, even with a piston just over half an inch in diameter, the stresses are considerable... to scale up the design would increase the exponentially, I'd say it's not worth the hassle when compared to a conventional exhaust valve piston design.

WOuld it work to hold it back with a pneumatic ram though? in a steel cannon? ahhh w/e ill stick with normal exhaust. mabey ill get a mauler to exhaust a mauler intead...........

I´m now working in this gun, but I wonderd what kind of size did you use for the air chamber 32MM ?
Greetings from the dutch, Jaffe

I used 50mm PVC tubing for the chamber but 32mm will do nicely.

But wil the 20ML syringe tube fit .
Greetings from the dutch, Jaffe

Yes, it should fit comfortably.

A pneumechanic rifle? Cool idea.

never heard of a 9 millimeter???

or is that millimetre??

Brian the brain wrote:never heard of a 9 millimeter???

or is that millimetre??

9x19mm parabellum is a round of European origin, hence the metric reference. We don't call the 0.45 ACP a "11.43 millimetre", do we? ;p

what ammo do you use ?
I think of making a gun with 10mm barrel but I first want to know if there is good ammo for that

btw nice gun

It's better to do it the other way round - first find ammo you whant to use (preferably cheap and easily available f.e. marbles) then find a barrel that fits them

I like your trigger Idea. One question, Is there a spring on the trigger, and how does it reset itself?

You have to push in the plunger and lift the trigger manually to reset.

Could you make it semi auto by having a compressor feed and a reasonably strong spring behind the plunger so it closes once the chamber preasure drops below a certain level

I could, but I've developed other much more effective semi-auto mechanisms in the years after this project was built.