yeh, i think mate, that if your willing to risk life and limb for 40 dollars (the difference betweeen the steel and pvc) then either your life sucks or your a retard. pvc is fine for combustions, but i personally, and as do a lot of the others here, wouldnt make one out of pvc, no matter what its ...

lol thats awesome. (the poem) with your cannon dude, i would instead of having what i assume is the chamber as your stock, make it over under something like this
__________
| _________
| |_________
|___________|

thats a kinda dodgy drawing, but it outlines an over under. basically chamber is ...

oh, is that what the 3 means, no i only got one spark gap. i thought that if i said that the burst disk failed at 0 then the diameter of it wouldnt matter. o well i will go back and change it again and see what the new data is.

hey mate, if your after fittings, shraders, go to bridgestone tyre centers, 2 bucks each, (in aus, thats where i get mine. just go into the shop and ask for tubeless tire valves.) then drill a hole 12mm i think it is and then just pull the valve through, the base will seal itself in the metal. the ...

http://i252.photobucket.com/albums/hh10/mcfear1991/HGDTpicone.jpg
http://i252.photobucket.com/albums/hh10/mcfear1991/HGDTpictwo.jpg

the above pics show the perfect shots for my cannons with a tennis ball.
at the moment, the fastest recorded speed i have gotten is 189m/s without a burst disk ...

is there a thread for HGDT cause its kinda confusing when not using it for a hybrid. i know it can be done, cause i have had people do it for me, but its kinda confusing to use for the first time.

is there anyway of theoretically finding out how much distance i would get with a spud if i know the distance that a tennis ball went.

tennis ball (67g) went 180m at 5 degrees to the horizontal (video footage on youtube, search for scab1991 and watch) if i were to make a slug thats maybe 150 or ...

a few years. maybe 4

he said 40-50cm but didnt say diameters for either chamber or barrel.

lol, you gotta love slow people.

lol ok fair enough. i was talking mainly stun gun tazer thing

And for people who can't buy stun guns

Anyone , regardless of country or age, can buy a stungun. Ever heard of BCARMS?

This system sounds like a fine investment for a handheld launcher though, as it's likely already miniaturized to a greater extent than most of us can manage, and obviously ...

cathode? thaty what your looking for
positive terminal or have i got it wrong way around

you just answered a question i was about to ask., thanks very much:P

yeh i know it doesnt allow for fast disk exchange, but i wasnt sure how best to go about putting the disk in there so that wsa how i thought it would best work for simplicity.

i didnt think about the size of the burst disk. that will completely change the design though.

eh, back to the drawing ...