Search found 205 matches

by SubsonicSpud
Sat May 09, 2009 12:41 am
Forum: General How-To & Discussion
Topic: pre engineered silencers...DUH!
Replies: 59
Views: 8853

If I can find one for free, then sure, but for now I'll have to stick with fridgy. Aren't they also heavier n stuff? The one I have is a vane type compressor it is pretty heavy compaired to a fridge compressor but not much bigger, has a much greater flow and max pressure is about 550-600 psi defini...
by SubsonicSpud
Thu May 07, 2009 6:29 pm
Forum: General How-To & Discussion
Topic: pre engineered silencers...DUH!
Replies: 59
Views: 8853

gees, 15 mins to fill up a 10l tank. Get an air con compressor, they will fill a 10l tank to 550psi in 4-5 mins
by SubsonicSpud
Thu May 07, 2009 8:57 am
Forum: General How-To & Discussion
Topic: pre engineered silencers...DUH!
Replies: 59
Views: 8853

@ rag I'd spend forever if I had a fridge compressor, singular. http://www.spudfiles.com/forums/files/dscf2271_732.jpg nahh..... mine fill this to 100 psi in 10 minutes it's made form 7 meters of 1.5" steel pipe also keep in mind that you can't pump your gun while aiming or loading it... but with a...
by SubsonicSpud
Thu May 07, 2009 8:23 am
Forum: General How-To & Discussion
Topic: pre engineered silencers...DUH!
Replies: 59
Views: 8853

I knew if was something like a maze of intricate chambers inside a silencer, but somehow I thought there was also some filling stuff. Oh well, another thing to learn. I'll explore the forum. If you have at hand some good links about DIY silencers please share. Having filling inside of a silencer is...
by SubsonicSpud
Thu May 07, 2009 7:45 am
Forum: General How-To & Discussion
Topic: pre engineered silencers...DUH!
Replies: 59
Views: 8853

The idea of silencing a weapon is to contain the expanding gases. Silencing a firearms is not like trying to soundproof a box or cavity where you are trying to absorb small pressure waves. In a firearm there is a large release of gas out of the barrel this needs to be contained and released slowly o...
by SubsonicSpud
Thu May 07, 2009 5:48 am
Forum: General How-To & Discussion
Topic: pre engineered silencers...DUH!
Replies: 59
Views: 8853

http://www.anver.com/document/vacuum%20components/vacuum%20mufflers/flow-through_silencers.htm I very much doubt they would have much effect on an air powered weapon, mainly to due to their lack of volume. The design also seems to be a muffler style perforated pipe with wadding, not very effective ...
by SubsonicSpud
Thu May 07, 2009 5:07 am
Forum: Pneumatic Cannons
Topic: Mk IV QEV Popoff. Updated 22 Feb
Replies: 181
Views: 460306

Excellent :D and just 12 bar! Are you going to keep the magazine vertical as it is or throw in an elbow and have it in line with the barrel? Yeah I am pretty happy with it but I want to run it at about 20bar, I can't take it Higher than that because the cover plate flexes and leaks. I'm going to re...
by SubsonicSpud
Thu May 07, 2009 4:47 am
Forum: Ammo & Parts
Topic: Quick epoxy question
Replies: 2
Views: 858

If you are using it in a pressure component then you would be best to stick with the High Strength epoxy. the 5min stuff dose not really give you a great deal of time to mix properly particularly if it is a warm day. It will probably do the job, but you would be much better of with the high strenght...
by SubsonicSpud
Thu May 07, 2009 4:24 am
Forum: Pneumatic Cannons
Topic: QEV + popoff --- Making it more efficient.
Replies: 8
Views: 1747

Looks like a great idea, will be good to see how much it affects the air usage. The biggest benefit would come when operating at high rate of fire due to the much greater flow of air available from the valve and able to flow out the popoff. If the trigger valve is only set to a low rate of fire then...
by SubsonicSpud
Thu May 07, 2009 4:01 am
Forum: Pneumatic Cannons
Topic: Mk IV QEV Popoff. Updated 22 Feb
Replies: 181
Views: 460306

Well I finally got around to putting a test barrel and mag on the new QEV, and I am very happy with the results :D I added a spring to the mag and boy dose it improve ammo feeding. Now able to fire at 12-13 rounds per second with a muzzle velocity of between 480-520 fps and just over 10ft/lbs and th...
by SubsonicSpud
Tue May 05, 2009 3:38 am
Forum: Pneumatic Cannons
Topic: 4 inch piston cannon (lots of pics)
Replies: 13
Views: 2854

When I first made my 25mm copper cannon, it originally had a flat faced piston. I mucked around with streamlined piston faces and managed to get about a 15- 20% increase in fps with identical projectiles and pressures, so it definatly has a great effect on performance.


SubsonicSpud
by SubsonicSpud
Mon May 04, 2009 6:26 am
Forum: Ammo & Parts
Topic: Ballvalves and High Pressure Air, risk ? oh also Diagphrams
Replies: 11
Views: 3320

I have used valves like that up to about 600psi without any issues.

SubsonicSpud
by SubsonicSpud
Mon May 04, 2009 5:18 am
Forum: Pneumatic Cannons
Topic: Destroyer Valve MKII [POWER TESTS 9/6/09]
Replies: 130
Views: 23619

jackssmirkingrevenge wrote:"destroyer" is too much along the lines of "mauler" too...
How about

The SUPA UBER POWER MOAR VALVE :wink:
by SubsonicSpud
Mon May 04, 2009 5:02 am
Forum: Pneumatic Cannons
Topic: Destroyer Valve MKII [POWER TESTS 9/6/09]
Replies: 130
Views: 23619

yeah, i understand. :wink: thanks for the warnings guys! so if the price was $35, would you buy it? Well most of the guys on the forum know how to make piston valves and can do it cheaper than buying one. The people that tend to buy pre fabricated valves are generaly people who do not have the know...
by SubsonicSpud
Mon May 04, 2009 4:45 am
Forum: Pneumatic Cannons
Topic: Destroyer Valve MKII [POWER TESTS 9/6/09]
Replies: 130
Views: 23619

P.S, In the marketed version, I will buy a tee rated to 16bar, this one is only rated to 8bar. . If the fitting dose have a rating of 8Bar then then it is ok, just have to remember that is the pressure limit of the valve. The tee just looked like an unrated DWV ( drain, waste and vent) fitting, hen...