3/4" QEV PVC cannon! (+nearly finished coax teaser pics

[ALIHISGREAT]

finally got round to nearly finishing my first cannon!

specs

1m 3/4" PVC barrel
~80cm 1.5" chamber
3/4" QEV
blowgun pilot
good for about 120psi (pipe rated to 160)

[starman]

Some pretty bad "bowage" on your gray barrel there. Why don't you shorten your stand-off and level it out?

Also, you must be left handed....

[ALIHISGREAT]

yeah it is pretty bent, i need to get some 22mm copper to put it over then i'll see if heating it will make it retain the straightnesss (although i doubt it will)

and i'm not left handed, the blowgun is like that because there is not quite enough room for it under the chamber so i need to shorten the lever on the blowgun (although its not uncomfortable to shoot)

[starman]

yeah it is pretty bent, i need to get some 22mm copper to put it over then i'll see if heating it will make it retain the straightnesss (although i doubt it will)

No need to do all that...just shorten your stand-off under the tee at the end of the barrel and tie it back down.

[ALIHISGREAT]

it wouldn't work because the barrel is surprisingly flexible and aqlso i haven;t glued the tee on.

[MaxuS the 2nd]

I think what starman is trying to say is that if you were to shorten the length of the pipe of the barrel support then the barrel would not bow. Starman is correct.

[ALIHISGREAT]

no because the pipe has always been bent so its nothing to do with the barrel support and it wouldn;'t work anyway unless i glued it and i don;t want to.

[Sticky_Tape]

You know if you take that brass think out of the end of the blowgun you will get better preformance.

[MaxuS the 2nd]

no because the pipe has always been bent so its nothing to do with the barrel support and it wouldn;'t work anyway unless i glued it and i don;t want to.

And what I'm trying to say is that if you were to cut that length of pipe down a little bit, then it would hold the barrel straight.

[ALIHISGREAT]

yes it would IF I GLUED THE TEE ON WHICH I'M NOT GOING TO DO

[MaxuS the 2nd]

Why not? This would solve your problem..

[ALIHISGREAT]

because then i wouldn't be able to swap out barrels, if i want a longer or shorter or bigger or smaller....

[jackssmirkingrevenge]

Nice car!



*ahem* yes, good effort on the launcher, damage pics!

[ALIHISGREAT]

Nice car!



*ahem* yes, good effort on the launcher, damage pics!

you are talking about the red monster truck in the background of the TVR pic right?

oh and yeah, well i changed the configuration to a BTB sawn off shape (which is what it was origionally but then i changed it, but i prefer the sawn off shape 8) ) and i'm sure i can find something to shoot at, i was thinking a melon or something with a 12g co2.....