Search found 458 matches

by Goats spudz
Thu Dec 06, 2012 7:52 pm
Forum: Pneumatic Cannons
Topic: What pressure will QEV's fail at?
Replies: 4
Views: 1816

The shell won't burst at under 2000 Psi, if taken above 1500 Psi the diaphragm may deform, keep it under 1500 Psi.
by Goats spudz
Tue Dec 04, 2012 2:36 am
Forum: Off-Topic Hobbies
Topic: Groupon-Like Collaboration on Barrels?
Replies: 18
Views: 4183

A Silencer is considered a firearm? Wow these Federal people.
by Goats spudz
Sun Dec 02, 2012 6:45 am
Forum: BB, Airsoft, and Pellet Guns
Topic: anybody help me with a DIY co2 gun?
Replies: 19
Views: 11427

Im in England and i have a full auto .22 cal airgun, Most airguns made on this site are most definitely illegal.
by Goats spudz
Sun Nov 25, 2012 9:31 am
Forum: Pneumatic Cannons
Topic: qev question
Replies: 7
Views: 1815

PaperNinja wrote:Mine has semi auto and no spring...
"However there are much more efficient ways of accomplishing that."
by Goats spudz
Sat Nov 24, 2012 7:09 pm
Forum: Pneumatic Cannons
Topic: qev question
Replies: 7
Views: 1815

Most QEVs don't have springs inside them, You only need one if you plan on semi auto, However there are much more efficient ways of accomplishing that.
by Goats spudz
Sat Nov 24, 2012 8:42 am
Forum: Ammo & Parts
Topic: The Offcial Machinist Thread: Revised 01/04/2014
Replies: 1097
Views: 377367

Price quote on this?
Shipped to UK
by Goats spudz
Tue Nov 20, 2012 5:23 pm
Forum: Hybrid Cannons
Topic: problem by designing shell ejection system
Replies: 27
Views: 9908

Milling with the drill press isn't such a good idea, there not build for the stress of feeding it into the work and eventually you will wear out your bearings.
by Goats spudz
Sun Nov 18, 2012 8:29 pm
Forum: Pneumatic Cannons
Topic: Burst Disc 400-500 PSI?
Replies: 3
Views: 1506

take a regular 3000 PSI burst disc, pop a hole in the disc with a center punch and glue some layers of aluminium foil over the original disc and test till you get the pressure you want
by Goats spudz
Mon Oct 15, 2012 2:35 pm
Forum: Pneumatic Cannons
Topic: My gun needs to be lighter Need material info
Replies: 42
Views: 11877

Aluminium 5754 alloy.
by Goats spudz
Sun Oct 07, 2012 7:16 pm
Forum: General How-To & Discussion
Topic: Mythbusters SO9E18 Drain disasters
Replies: 7
Views: 2342

Stuff your chamber with brass wool?
by Goats spudz
Sat Sep 29, 2012 8:50 pm
Forum: Ammo & Parts
Topic: Aluminum High Pressure Fittings
Replies: 2
Views: 1528

Re: Aluminum High Pressure Fittings

This is probably a stupid question, but do aluminum round rods have seams? Was wondering if high pressure fittings could be made from aluminum round rods 6061-T6 ASTM B211. No they don't have seams, sometimes with cheap stock you may find a tear through the rod where scale has been rolled into the ...
by Goats spudz
Sat Sep 29, 2012 7:23 pm
Forum: Pneumatic Cannons
Topic: any one got ideas on valves
Replies: 11
Views: 3388

Fridge compressor.
by Goats spudz
Sat Sep 29, 2012 2:35 pm
Forum: Off-Topic Hobbies
Topic: High pressure Fridge compressor (1020 PSI/ 70 bar and more)
Replies: 37
Views: 18564

no it was already brazed, I only welded it because the copper tube snapped off at the shell
by Goats spudz
Sat Sep 29, 2012 2:29 pm
Forum: Pneumatic Cannons
Topic: any one got ideas on valves
Replies: 11
Views: 3388

doomburger wrote:BTW, how are you pumping to 800 psi??? I would recommend just building a hybrid to achieve the pressures you're trying to get
Thats nothing! why would you need a hybrid, i can achive those pressures in a matter of seconds.
by Goats spudz
Sat Sep 29, 2012 2:25 pm
Forum: Off-Topic Hobbies
Topic: High pressure Fridge compressor (1020 PSI/ 70 bar and more)
Replies: 37
Views: 18564

I use mine upto 100 bar and its fine, theres a thick plug that the copper is brazed onto on the shell Image