Thanks JSR
I didn't post it here because its still incomplete.
Search found 295 matches
- Thu Feb 21, 2013 5:45 am
- Forum: Pneumatic Cannons
- Topic: Piston design with a built in check valve
- Replies: 55
- Views: 14653
- Thu Oct 25, 2012 11:15 am
- Forum: Pneumatic Cannons
- Topic: bolt action air gun
- Replies: 19
- Views: 5978
- Tue Oct 16, 2012 6:58 pm
- Forum: Pneumatic Cannons
- Topic: My gun needs to be lighter Need material info
- Replies: 42
- Views: 11877
I think what you need is a more efficient launcher. Using a better valve and higher pressure will allow you to decrease chamber size while maintaining decent power. The majority of the weight of my launchers was, until now, in the barrel. What is your primary ammunition? Perhaps an aluminum barrel w...
- Tue Aug 14, 2012 1:00 pm
- Forum: Pneumatic Cannons
- Topic: Where to get 5/8'' fittings
- Replies: 14
- Views: 3209
- Mon Aug 06, 2012 7:07 pm
- Forum: Pneumatic Cannons
- Topic: QEV problem. Ball valve broke off inside it
- Replies: 13
- Views: 4144
So what kind of tools do you have if you can't afford a 5$ extractor? Its a must have anyways. If I were you and didn't have the extractor set I'd use my dremel cut off disc to make some slots in the broken off piece, jam a piece of metal in the slots and rotate it. If that does't work you might as ...
- Fri Jul 06, 2012 7:10 pm
- Forum: Ammo & Parts
- Topic: Woodworking tools
- Replies: 7
- Views: 2954
How about buying wood and start making chips :D Its the fastest way to gaining experience and realizing what tools you really need. Apart from what you already have I would definitely invest in a decent router with some attachments. It can serve as a jigsaw, drill press and it leaves a good finish s...
- Sun Jul 01, 2012 6:43 am
- Forum: Pneumatic Cannons
- Topic: Looking for a hammer type mechanism
- Replies: 13
- Views: 4403
why not just open it with the rod movement no spring no need to a respect bar. I already answered you... I forgot to mention its supposed to be a spring driven mech... thats why I'm having trouble with it. A direct link between the trigger and some lever would be a lot simpler but I'm going for con...
- Sun Jul 01, 2012 4:35 am
- Forum: Pneumatic Cannons
- Topic: Looking for a hammer type mechanism
- Replies: 13
- Views: 4403
I didn't even think of that... no I'm not trying to go semi. This is what I managed to come up with... http://img84.imageshack.us/img84/5420/des1.png Pivot points are red and the reset bar is yellow. Its still got a major problem of high leverage ratio which means I need a strong spring and the trig...
- Sat Jun 30, 2012 7:21 pm
- Forum: Pneumatic Cannons
- Topic: Looking for a hammer type mechanism
- Replies: 13
- Views: 4403
Yes but the problem is when you press the trigger, unable to reset sear, not enough mass to open the valve, if spring was strong enough you would just get 1 big hiss of air, Well... the sear could be reset with a spring and the whole mechanism with a reset rod mounted somewhere on the lever. Mass i...
- Sat Jun 30, 2012 4:01 pm
- Forum: Pneumatic Cannons
- Topic: Looking for a hammer type mechanism
- Replies: 13
- Views: 4403
If the trigger was facing that way I wouldn't be asking for help :D I think I described it well enough... but heres some perspective on my dimension drawing anyways. http://img193.imageshack.us/img193/7678/tavor21.jpg And just for the heck of it... this is what I meant in my earlier post... http://i...
- Sat Jun 30, 2012 12:16 pm
- Forum: Pneumatic Cannons
- Topic: Looking for a hammer type mechanism
- Replies: 13
- Views: 4403
Maybe a lever behind the valve and an inline strker below the valve hitting said lever? Or have the main spring attached to the lever itself and have a sear hold it in place... but such a sear would need a trigger press coming from the back. Thats something I can't pull off in a bulpup with any of ...
- Sat Jun 30, 2012 11:29 am
- Forum: Pneumatic Cannons
- Topic: Looking for a hammer type mechanism
- Replies: 13
- Views: 4403
- Fri Jun 29, 2012 12:14 pm
- Forum: Pneumatic Cannons
- Topic: Looking for a hammer type mechanism
- Replies: 13
- Views: 4403
Looking for a hammer type mechanism
I used to have a comfy 80mm of space behind my schrader pilot valve so fitting a striker mechanism was not a problem... but after a redesign and replacement of the fittings with PN50 rated stuff I was left with only 14mm behind the piston stem. Now I need some sort of mechanism that will fit in this...
- Thu Jun 07, 2012 8:24 am
- Forum: Ammo & Parts
- Topic: The Offcial Machinist Thread: Revised 01/04/2014
- Replies: 1097
- Views: 377355
Perhaps I didn't explain the situation good enough... imagine a standard piston valve... once you vent the pilot and chamber, the high pressure air remains in the area between the piston body and piston housing between the 2 O rings. The air then pushes on the O rings to make a seal... O rings are p...
- Thu Jun 07, 2012 8:00 am
- Forum: Ammo & Parts
- Topic: The Offcial Machinist Thread: Revised 01/04/2014
- Replies: 1097
- Views: 377355