Search found 1943 matches
- Sat Mar 31, 2012 3:16 pm
- Forum: Pneumatic Cannons
- Topic: Semi-auto 800 PSI .51cal WIP
- Replies: 68
- Views: 16293
haha yeaa it does look better. yea i'll have to lengthen it. that close nipple is actually epoxied into the bushing, so i'll probably have to add a coupling+ nipple, or i'll use a female x male adapter. depends on how much room I need to add. Looks like I'll have to add 2-3". Gonna cut down on the d...
- Fri Mar 30, 2012 11:38 pm
- Forum: Pneumatic Cannons
- Topic: Semi-auto 800 PSI .51cal WIP
- Replies: 68
- Views: 16293
Yea ramses is machining for it me here in country.. thankfully. Ran into another issue... Chopping up a nerf gun for the handle and trying to figure out its placement. All the yellow part will be cut off, it'll pretty much just be the black portion of the handle. I was originally hoping to tuck it r...
- Thu Mar 29, 2012 10:31 pm
- Forum: Pneumatic Cannons
- Topic: Semi-auto 800 PSI .51cal WIP
- Replies: 68
- Views: 16293
Got the brass elbows today.. they were pricey but after assembly, definitely worth it. It may not look like much, but it definitely compacted the gun a significant amount in my opinion. Finally got bolt dimensions worked out, so ramses will be making that for me this weekend and shippin it here. Sti...
- Thu Mar 29, 2012 2:21 pm
- Forum: Pneumatic Cannons
- Topic: need advice on floatin o-ring
- Replies: 14
- Views: 3237
- Thu Mar 29, 2012 1:34 pm
- Forum: Pneumatic Cannons
- Topic: need advice on floatin o-ring
- Replies: 14
- Views: 3237
- Thu Mar 29, 2012 12:36 pm
- Forum: Pneumatic Cannons
- Topic: need advice on floatin o-ring
- Replies: 14
- Views: 3237
WAIT... ok, so on a whim i decided to measure the diameter of my barrel again. Turns out its not .527" like mcmaster said, but .500". So.. if I just get an o-ring with OD of .5", should be able to easily make the groove. Seems like problems solved... guess I should follow the measure twice rule a bi...
- Thu Mar 29, 2012 11:13 am
- Forum: General How-To & Discussion
- Topic: How to: semi-auto airgun for beginners
- Replies: 36
- Views: 15637
- Thu Mar 29, 2012 10:24 am
- Forum: Pneumatic Cannons
- Topic: need advice on floatin o-ring
- Replies: 14
- Views: 3237
- Wed Mar 28, 2012 11:51 pm
- Forum: Pneumatic Cannons
- Topic: need advice on floatin o-ring
- Replies: 14
- Views: 3237
I told ramses (who is machining this for me) that I need 20 hours to figure this out because he pretty much has to get it done this weekend and I don't wanna delay him any more than necessary. EDIT: my calculations were relying on o-ring compression of 30-40%, which is a significant amount. looks li...
- Wed Mar 28, 2012 11:33 pm
- Forum: Pneumatic Cannons
- Topic: need advice on floatin o-ring
- Replies: 14
- Views: 3237
yea i need the bolt to seal into the barrel. It sort of does have to act as a check valve i suppose. Since the air is actually coming into the barrel ahead of the o-ring it has to keep air from going backwards.. dunno if that makes it qualify as a check valve or not. That was my original plan, but t...
- Wed Mar 28, 2012 6:31 pm
- Forum: Pneumatic Cannons
- Topic: need advice on floatin o-ring
- Replies: 14
- Views: 3237
- Wed Mar 28, 2012 4:50 pm
- Forum: Pneumatic Cannons
- Topic: need advice on floatin o-ring
- Replies: 14
- Views: 3237
need advice on floatin o-ring
So as I was talkin to ramses about machining my bolt, he proposed that I should use a floating o-ring, which i had not thought about. I've never used floatin o-rings so I could use some advice. The barrel ID is .527". Currently I have .5625" OD o-rings, and thats the closest I can get without going ...
- Wed Mar 28, 2012 4:04 pm
- Forum: Pneumatic Cannons
- Topic: Semi-auto 800 PSI .51cal WIP
- Replies: 68
- Views: 16293
- Wed Mar 28, 2012 3:51 pm
- Forum: Pneumatic Cannons
- Topic: Promethean rifles
- Replies: 18
- Views: 3874
- Wed Mar 28, 2012 3:03 pm
- Forum: Pneumatic Cannons
- Topic: Promethean rifles
- Replies: 18
- Views: 3874