Search found 25 matches

by steven_main
Tue Nov 06, 2012 11:36 pm
Forum: Pneumatic Cannons
Topic: video of oxy bottle hybrid cannon firing as pneumatic only
Replies: 3
Views: 1308

Ball valve... Ill use foil tape burst disk for hybrid operation or to maximize pneumatic mode performance in conjunction with forward mounted ball valve..
by steven_main
Tue Nov 06, 2012 4:29 pm
Forum: Pneumatic Cannons
Topic: video of oxy bottle hybrid cannon firing as pneumatic only
Replies: 3
Views: 1308

video of oxy bottle hybrid cannon firing as pneumatic only

120 PSI .... 1 7/8 impact socket vs brick wall.

Hybrid mode will be 5 times more powerfull :-)

[youtube][/youtube]
by steven_main
Fri Nov 02, 2012 4:02 pm
Forum: Hybrid Cannons
Topic: percussion cap ignition?
Replies: 16
Views: 5370

Well shoot, that sounds like a heck of a money maker right there... lets see.. 10 acre lot, around here would cost 50,000 usd, and 4 tanks could be made for $10,000 each less than $100k for a buisness that requires nothing more than some gasoline and maybe a maintnance guy to run... Pnumatics would ...
by steven_main
Thu Nov 01, 2012 10:56 pm
Forum: Hybrid Cannons
Topic: percussion cap ignition?
Replies: 16
Views: 5370

check out some of the paintball tanks on youtube, a guy makes reailly nice one out of square tube and sheet metal, even makes his own tracks.. powered by a 2 cylinder lawn tractor engine and hydraulic driven like a bobcat, can neutral steer and all. would be bad ass to build a 2/3 scale replica with...
by steven_main
Thu Nov 01, 2012 7:00 am
Forum: Hybrid Cannons
Topic: percussion cap ignition?
Replies: 16
Views: 5370

yeah like that but waaaay bigger Im talking artilllery sized cartirdges lol .
by steven_main
Thu Nov 01, 2012 12:06 am
Forum: Hybrid Cannons
Topic: percussion cap ignition?
Replies: 16
Views: 5370

how about we encase the projectile in brass..use a primer as ignition and a charge of smokeless powder... The cartridge itself wouldn't be able to withstand the pressure of course so it would be inserted into a reinforced steel area... a chamber if you will.. These cartidges can even be stacked side...
by steven_main
Wed Oct 31, 2012 10:52 am
Forum: Hybrid Cannons
Topic: percussion cap ignition?
Replies: 16
Views: 5370

percussion cap ignition?

Just hypothetical, what would happen if you used shotshell primers as an ignition source? Would this cause DDT? Im not going to attempt it because of legal concerns It may be viewed as a device with explosive discharge. But would it work and would there be advantages or would it be too dangerous for...
by steven_main
Tue Oct 30, 2012 7:48 pm
Forum: Hybrid Cannons
Topic: 20 Cubic foot oxy bottle cannon idea
Replies: 10
Views: 3065

Hell I was just gonna hold on for dear life but maybe some pistol grip and a padded shoulder stock is in order.

Maybe a trunk gas strut on a hinged shoulder pad with a tab on the barrel
by steven_main
Tue Oct 30, 2012 1:22 pm
Forum: Hybrid Cannons
Topic: 20 Cubic foot oxy bottle cannon idea
Replies: 10
Views: 3065

Ive seen your vids on you tube... big fan. Anyway a 1.5" barel would be ok too, plus would reduce the packaging weight. and by a 20 cubic foot I want to make sure everyone unfamiliar with welding knows its only a 5" x 14" bottle weighing 15 lbs with 274 cubic inches... 20 cubic foot is compressed ox...
by steven_main
Tue Oct 30, 2012 1:08 pm
Forum: Hybrid Cannons
Topic: 20 Cubic foot oxy bottle cannon idea
Replies: 10
Views: 3065

The opening is about 1" diameter is that really too small? Ill be getting a Tig Welder soon, if I do cut and weld Its not going to be a cheesy flux cored mig weld I just dont want to compromise the pressure vessel another problem Im finding is the "black steel" fittings im finding are only rated to ...
by steven_main
Tue Oct 30, 2012 12:50 pm
Forum: Hybrid Cannons
Topic: 20 Cubic foot oxy bottle cannon idea
Replies: 10
Views: 3065

Actually Ive looked at some ballistics charts .50 BMG was listed as 12,700 ft/lbs So Im only half that. Ive fired thousands of rounds out of an M2 .50 cal machine gun and although I cant say Ive shoulder fired one lmao... and it has a recoil system, and it can make a 9,000 lb armored HMMMWV rock bac...
by steven_main
Tue Oct 30, 2012 12:29 pm
Forum: Hybrid Cannons
Topic: 20 Cubic foot oxy bottle cannon idea
Replies: 10
Views: 3065

20 Cubic foot oxy bottle cannon idea

bottle is Stamped DOT-3AA-2015 (pressure tested safe work rating) Just want to be certain this idea sounds safe and effective to the experts for 10X burst disk hybrid. Basically remove the valve from the tank and install a Schedule 80 Pipe Adapter to 2" shedule 40 theaded barrel. In this adapter I w...
by steven_main
Mon Oct 29, 2012 12:54 am
Forum: Hybrid Cannons
Topic: Rocket initiated hybrid... non pyrotechnic
Replies: 5
Views: 2274

Im just looking for all out range and hang time, nothing else. the gun I had launched inert PVC "rockets" to 400 meters and 16 second hang time. This was as regular combustion only. I downloaded the hybrid gun design tool and found my 4 ounce projectiles weren't nearly heavy enough and also performe...
by steven_main
Sun Oct 28, 2012 11:50 pm
Forum: Hybrid Cannons
Topic: Rocket initiated hybrid... non pyrotechnic
Replies: 5
Views: 2274

is this edit Kosher? Is it a legal requirement or something? I can understand not wanting to give potato launchers a bad name... too much negative press and the fed would step in and ruin a fun healthy hobby.
by steven_main
Sun Oct 28, 2012 11:31 pm
Forum: Hybrid Cannons
Topic: Rocket initiated hybrid... non pyrotechnic
Replies: 5
Views: 2274

Rocket initiated hybrid... non pyrotechnic

Ok my original idea was in violation of forum rules and I was unaware of this. So... 4000 ft/lb hyrbid cannon launching a projectile which is also a rocket... a 12 ounce projectile could travel 750 meters from proposed gun and if I created say for a forum safe hypothetical example a mythical c02 roc...