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Progress is underway

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: frankrede » Sun Jun 29, 2008 8:29 pm

This is my latest project, all parts have been bought and some work has began.
It is MkII of my ERG-SSB
http://www.spudfiles.com/forums/silence ... 14438.html
Heres a rough(not to scale;)) drawing I just made up of what it should look like when done
Colours are subject to change
1/2" barrel
2" chamber
silencer
coaxial w/ piston

Future upgrades...
Perhaps remote co2
<a href="http://s30.photobucket.com/albums/c325/redensekjf/?action=view&current=conceptmkII-1.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/redensekjf/conceptmkII-1.jpg" border="0" alt="Photobucket"></a>
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Unread postAuthor: FishBoy » Sun Jun 29, 2008 8:32 pm

Schweet; when do you expect to finish it, and what pressure will you run it at?
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Unread postAuthor: STHORNE » Sun Jun 29, 2008 9:17 pm

looks good, but dont you think the hose in the back would get in the way of your trigger hand?
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Unread postAuthor: SpudFarm » Sun Jun 29, 2008 9:20 pm

that looks to be quite impressive.

you should use a husky blowgun imbedded in your stock handle.
will look more like a real rifle trigger.
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Unread postAuthor: SEAKING9006 » Sun Jun 29, 2008 9:25 pm

STHORNE wrote:looks good, but dont you think the hose in the back would get in the way of your trigger hand?

No, it shouldn't. Lot's of rifles have a thru-grip stock and they feel just fine. Just run the hose through a hole up through the stock for a cleaner look.
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Unread postAuthor: STHORNE » Sun Jun 29, 2008 9:31 pm

based upon the picture it looks like it would be uncomfortable but I'm sure the actual scale of the parts will be less protruding (no offense frankrede lol).

But i would suggest that you connect the hose to the opposite end of the blow gun and run it flush with the bottom of the stock, that way there isn't anything to worry about in the first place, and if I recall right... a blowgun's performance is the same no mater what side the pressure is being released from.
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Unread postAuthor: mega_swordman » Sun Jun 29, 2008 9:36 pm

Although it was stated many times, the hose does look to be a problem. A good alternative that I have seen would to simply use a small ball valve similar to that on the HEAL gun. It seemed to me like it worked well for that purpose, plus you wouldn't have the hose problem on this design.

Otherwise, it looks good. My only other criticism would be that the stock looks a little to boxy for my taste.
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Unread postAuthor: frankrede » Sun Jun 29, 2008 9:37 pm

STHORNE wrote:based upon the picture it looks like it would be uncomfortable but I'm sure the actual scale of the parts will be less protruding (no offense frankrede lol).

But i would suggest that you connect the hose to the opposite end of the blow gun and run it flush with the bottom of the stock, that way there isn't anything to worry about in the first place, and if I recall right... a blowgun's performance is the same no mater what side the pressure is being released from.
I was actually originally planning to do that, but the blow gun has some odd threads at the spout.

SpudFarm wrote:that looks to be quite impressive.

you should use a husky blowgun imbedded in your stock handle.
will look more like a real rifle trigger.

I thought about that too

FishBoy wrote:Schweet; when do you expect to finish it, and what pressure will you run it at?

130 psi and it should be done by wednesday, if not then, thursday
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Unread postAuthor: STHORNE » Sun Jun 29, 2008 9:39 pm

@frankrede

Husky blowgun with a 1/4" (90*) elbow
Total price = $6-8
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Unread postAuthor: frankrede » Sun Jun 29, 2008 9:43 pm

STHORNE wrote:@frankrede

Husky blowgun with a 1/4" (90*) elbow
Total price = $6-8
toomuch:P
I think I am happy with the handle I have now, I have some blowguns laying around just incase I change my mind too
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Unread postAuthor: STHORNE » Sun Jun 29, 2008 9:45 pm

frankrede wrote:toomuch :P


Well jeez....looks like somebody isn't fully committed to there work :roll:
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Unread postAuthor: frankrede » Sun Jun 29, 2008 10:18 pm

STHORNE wrote:
frankrede wrote:toomuch :P


Well jeez....looks like somebody isn't fully committed to there work :roll:
I just have higher priorities when it comes to budgeting
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Unread postAuthor: STHORNE » Sun Jun 29, 2008 10:20 pm

frankrede wrote:I just have higher priorities when it comes to budgeting


I see, I see :read:
didn't mean to pry :wink:

Ok, I'm done now
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Unread postAuthor: frankrede » Sun Jun 29, 2008 11:00 pm

Any other suggestions or new idea are appreciated
I just realized that it resembles a a cross between a FN SCAR and a Thompson with a hint of Sig Sauer
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Unread postAuthor: Gippeto » Mon Jun 30, 2008 12:32 am

Way to go frankrede! I like it. :)

Exactly what I was thinking! (Tommy gun) :D

Do not run the hose to the outlet of the blowgun. The pressure will work against the spring, and could cause/contribute to an accidental discharge (very bad).

I take it you have the 2" stuff or you would be making the chamber smaller in diameter?
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