yeah it definitely has a lot of work engineered into one moving part. it has a barrel/bolt/hammer(for the poppet) all in one plus anything else i forgot to add

thats true forward pressure would drive it forward since there is more of it.

but i kinda picture it as a v8 running with a dead miss, you can do it but you shouldn't and worst case scenario your throwing rods through crankcases

here is a link to an old thread on pbnation where there was a big play around with ideas for a semi-auto that was propane powered

http://www.pbnation.com/showthread.php?t=1919833&highlight=propane+powered+semi+auto

And going back over this thread to make sure i hadn't missed anything, i had a huge ...

here is how the c3 works.

http://www.zdspb.com/media/tech/animations/c3_2.gif

you pull the trigger to light the spark and ignite the fuel/air mixture. after the paintball is shot you pump the marker back, in doing so the waste exhaust gas is transfered to the other side of the piston. once you ...

For the shocker comparison, your design is a spool valve design. Its is really a mix of shocker and dm design but primarily for the way it is laid out it falls to the shocker side of the design.

I never said if the company hadn't built it then it wasn't worth it, I said that since they hadn't ...

Yeah everything else aside, your absolute biggest problem and its one that will stop this auto combustion dead in its tracks) is venting the chambers. The way your diagram is laid out you have very little in the way of bringing fresh air in.

After we solve the problem of the oxidizer we need to ...

Not trying to start an argument or anything but the plotline definitely does what it does because the barrel is curved. The paintball riding along that curve gives it its backspin

well now your just splitting hairs lol.

it may not be a huge boost but is it not true that a small boost is better than no boost at all?

Ah so painful go read

Granted they have drawbacks but they have advantages too. And I mean this was an idea for a strafer and not a precision marker for lack of a better term. In terms of size this thing would probably have to be crew served if not stationary or vehicle mounted

Ok, that sounds fair enough for me. I was just going off a rudimentary scaling up of someone's6mm barrel with a 3cm block. 6mm goes into 3cm 5 times and almost .7" goes into 3.5" 5 times. But I will try the 3 out if I ever get a chance because theoretically that will reduce jams as you said and ...

I did a little rough estimation in my head and I'm thinking a 3.5" hole would be good for a 3/4" cpvc barrel?

yeah that was a thought i had because i know vortex blocks are pretty violent on the inside

right now we were looking at airsoft pellets but then the question of could we do it with paintballs came up.

i was just seeing if there was a general ratio or if it was really ammunition specific

Has anyone figured out the perfect ratio for a vortex block?

i mean if the ammo is X in diameter, then the block should have an inner circumference of Y?