Search found 11 matches
- Tue Oct 20, 2009 9:58 am
- Forum: Pneumatic Cannons
- Topic: Project Golf Cannon
- Replies: 23
- Views: 5676
- Tue Oct 20, 2009 4:19 am
- Forum: Pneumatic Cannons
- Topic: Project Golf Cannon
- Replies: 23
- Views: 5676
here is a link to a part of a video that ive made http://www.youtube.com/watch?v=M8Hvz4h6Fek let me know if anyone can see anywhere for refinement I should also say that whilst they are not modelled the is an extension spring between the bolt and pison and an end cap on the left with a damper screwe...
- Sun Oct 18, 2009 5:12 am
- Forum: Pneumatic Cannons
- Topic: Project Golf Cannon
- Replies: 23
- Views: 5676
- Sat Oct 17, 2009 5:44 am
- Forum: Pneumatic Cannons
- Topic: Project Golf Cannon
- Replies: 23
- Views: 5676
I should have the pro/e models done either tonight or tommorow - i've found a 2" high pressure PVC TEE that should do nicely and some 2" - 1.5" reducing bushes so that would leave a cavity where the 1.5" piston seals... Anyway I will post when they are ready - right now I'm being forced into bloody ...
- Thu Oct 15, 2009 5:51 pm
- Forum: Pneumatic Cannons
- Topic: Project Golf Cannon
- Replies: 23
- Views: 5676
- Thu Oct 15, 2009 4:45 pm
- Forum: Pneumatic Cannons
- Topic: Project Golf Cannon
- Replies: 23
- Views: 5676
Nah it's easy enough to do...just has to be tuned properly...i like the idea of non contact braking just because its funky tech but i think its massive overkill tbh For the piston im thinking some aluminium or titanium alloy or possibly structural plastic and this kind of shape...i can wrap the pist...
- Thu Oct 15, 2009 3:21 pm
- Forum: Pneumatic Cannons
- Topic: Project Golf Cannon
- Replies: 23
- Views: 5676
I was thinking more along the lines of having the non barrel end of the piston housing effectively open to atmosphere and allowing the piston free travel down the housing as it opens until the gap is fully cleared, then having a spring - damper system to absorb the energy which would stop any kick b...
- Thu Oct 15, 2009 2:27 pm
- Forum: Pneumatic Cannons
- Topic: Project Golf Cannon
- Replies: 23
- Views: 5676
Make the QEVs? I would have no idea but i guess about £3-4 would cover the production cost @Tech - Great video, it answered just about all my questions. I think I will make a prototype valve myself in the style of the vid although I'm going to make it so the valve is normal to the barrel with the po...
- Thu Oct 15, 2009 12:13 pm
- Forum: Ammo & Parts
- Topic: Golf Ball Barrel FAQ
- Replies: 34
- Views: 61972
Nominal sizes came about to give you different groups of pipe, the actual values are based around the nominal diameter but vary to keep other aspects of the pipe (throughput/strength etc) either constant within the group or nice round numbers... That said, what they choose to keep constant mainly de...
- Thu Oct 15, 2009 11:54 am
- Forum: Pneumatic Cannons
- Topic: Project Golf Cannon
- Replies: 23
- Views: 5676
Firstly thanks guys for the quick and detailed response! I will post pics of the setup tomorrow when i get back to uni... Tackling things in order @inonickname - Agreed about not needing the pony bottle, but its there and tested so I'm gonna leave it in - Coaxial would def be the way to go but I hav...
- Thu Oct 15, 2009 7:43 am
- Forum: Pneumatic Cannons
- Topic: Project Golf Cannon
- Replies: 23
- Views: 5676
Project Golf Cannon
Hi guys, firstly congratulations on some truly terrifying contraptions, I'm consistently suprised by the quality of work some people can produce from their sheds! Right, I was hoping for some advice if anyone can see their way to helping me out... Let me give you the background. I am a mechanical en...