Locksmith asked why go combustion basically coz ive never made a pnuematic and 1 i wouldent know how to make it air tight and get all the plugs that fit the pum/compressor 2 i dont no how to hook up the valve proply 3 a pnuematic your right would probly be better however a combustion is easyer , qui...

could work execpt i would have to use an end can and drill a hole in it and silcon around that. would work but would also be weaker - thats probly not to bad idead if 1 i use two caps back to back so there is extra support and 2 its a good fail safe - istead of it blowing up the barrel shoot into th...

- not a bad idea - exept my normal chamber size is 100 mm reducing that to the size of a marble would be difficult because i dont think reducers step down that far from that size.

you may laugh at this but ive only been mesuring the C:B ration by length of pipe even though the Camber is double the size width ways. so in effect if i was to messure volume of the inside it would prolly end up 1:1.1 - 1.2 :P am i correct in measuring the chamber by length only or should i be calc...

thanx Jackss

my previous cannons have a C:B ration of 1:1.5 the barrel not heaps bigger than the chamber - will this do ? what C:B ratio would you recomend

( sorry if this is the wrong section to ask for help) Im wanting to make a a combustion marble cannon but all my experience is in making farly MAssive potato chuking ones. Is it possable to have a big enough chamber to make it fire a long way ( eg 200 meters umm or americans i think thats around a b...

just from looking at it the chamber looks as if its very small compared to the barrel . mine is about C:B 1:2

IS my Camber to big ? if so thats probly why it makes such a nice noise

judgment_arms wrote: shows an utter lake of knowledge.

I bow to his lake full of knowledge

nice cannon but y do you talk like borat ? " im 16 - you look "

yea but my combustoin chamber is 1\2 meter long.

B-E-A-S-T !! !! !! !! hmm i wanted to be an electrition once but my work experience company sayd id have to go to yr 12 to get an appretership with them - i told them they were crazy. I figer if i go to yr 12 i might as well do somthing that can possable get me more money ... oops off topic ... you ...

were is the combustion chamber ? if its that part under the barrel then it cant be very powerfull , to small

you could only chuk a few down the barrel then launch em in 1 go before you had to reload the gass

looks good but ive never been a big fan of u bend cannons

would have looked great without that crappy brown paint job - next time paint it well or as i do not at all