Search found 343 matches

by sagthegreat
Fri Jan 24, 2014 4:15 pm
Forum: Pneumatic Cannons
Topic: All Steel and Brass Ball Valve Gun
Replies: 3
Views: 1726

Re: All Steel and Brass Ball Valve Gun

ball valves are really weak, and hard to open, you should spring load it for faster opening times
by sagthegreat
Wed Jan 22, 2014 2:22 pm
Forum: Ammo & Parts
Topic: Using drill bits as "rifled" projectiles
Replies: 9
Views: 4491

Re: Using drill bits as "rifled" projectiles

that video pretty much summarizes it then...

just out of curiosity, what type of cannon did you use, and what material did you use for wadding?
I used my coaxial with 12 inch barrel and 200psi, with a pellet as a backing
by sagthegreat
Wed Jan 22, 2014 1:07 pm
Forum: Ammo & Parts
Topic: Using drill bits as "rifled" projectiles
Replies: 9
Views: 4491

Re: Using drill bits as "rifled" projectiles

If they appear stable, I would wager it is more to do with the nose heaviness The thing is, I load then with the "drill" end first, which is lighter due to material being taken out to form the drill pattern, and they all hit with that side going into the target I tried from 25 feet vs a steel lid a...
by sagthegreat
Tue Jan 21, 2014 9:36 pm
Forum: Ammo & Parts
Topic: Using drill bits as "rifled" projectiles
Replies: 9
Views: 4491

Re: Using drill bits as "rifled" projectiles

at 10 feet away, 9/10 of them self stabilized
at 20 feet away, 7/10 of them self stabilized
at 30 feet away, 5/10 of them self stabilized

What i wanted to test was like 50-100 feet away
by sagthegreat
Tue Jan 21, 2014 4:30 pm
Forum: Ammo & Parts
Topic: Using drill bits as "rifled" projectiles
Replies: 9
Views: 4491

Using drill bits as "rifled" projectiles

I tested using steel drill bits as projectiles out of my smoothbore .177 coaxial gun, and the grooves in the bit acted as rifling and enabled the bit to fly straight and penetrate deeply without fins. I don't have the means to test this out from far away, or at stronger targets such as steel sheets ...
by sagthegreat
Tue Jan 21, 2014 9:15 am
Forum: Off-Topic Hobbies
Topic: "Offtopic-posts-topic" NSFW
Replies: 6637
Views: 1352760

Re: "Offtopic-posts-topic" NSFW

So what are the hop-ups for 3D printers? They been out long enough haven't they... I was kind of hoping for 3d print darts, kind of like the ones JSR made out plastic I dont want this to sound spammy, but I made a spudgun youtube channel, and was wondering if I could get some feedback? https://www....
by sagthegreat
Mon Jan 20, 2014 12:18 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Crosman 1322
Replies: 86
Views: 31455

Re: Crosman 1322

Is there a way you can modify the pump? maybe a longer arm for more of a wedge, and therefore less effort, or maybe increase the stroke length?
by sagthegreat
Mon Jan 20, 2014 10:49 am
Forum: Off-Topic Hobbies
Topic: "Offtopic-posts-topic" NSFW
Replies: 6637
Views: 1352760

Re: "Offtopic-posts-topic" NSFW

So what are the hop-ups for 3D printers? They been out long enough haven't they... I was kind of hoping for 3d print darts, kind of like the ones JSR made out plastic I dont want this to sound spammy, but I made a spudgun youtube channel, and was wondering if I could get some feedback? https://www....
by sagthegreat
Fri Jan 10, 2014 11:24 pm
Forum: Off-Topic Hobbies
Topic: Florida Colleges
Replies: 8
Views: 4067

Re: Florida Colleges

I have been accepted to embry riddle in Prescott Arizona. If you can go there then we can shoot spudguns in the desert
by sagthegreat
Sat Jan 04, 2014 6:30 pm
Forum: Pneumatic Cannons
Topic: SA/FA Pnushnikov/Caselman-build log.
Replies: 76
Views: 30170

Re: Pnushnikov/Caselman-build log.

Usually I can figure out how a design works, but this one is something unique to me. Could someone explain how it works, or maybe a rough paint diagram. BTW for the projectile have you tried loose10mm bullets, they are ment for reloading caetriges, and if they r too tight you can keep a piece of bar...
by sagthegreat
Sat Jan 04, 2014 3:31 pm
Forum: Pneumatic Cannons
Topic: High Pressure Copper Coaxial .22 Pellet Gun
Replies: 28
Views: 11754

Re: High Pressure Copper Coaxial .22 Pellet Gun

how did you calculate that?
by sagthegreat
Sat Jan 04, 2014 2:29 pm
Forum: Ammo & Parts
Topic: The Offcial Machinist Thread: Revised 01/04/2014
Replies: 1097
Views: 309687

Re: The Offical Machinist Thread: Revised 01/04/2014

srry for not reading, here is my pic with dimensions:

its upside down/ ghetto because my computer is on the verge of breaking
(I typed this with a on screen keyboard)

by sagthegreat
Sat Jan 04, 2014 10:26 am
Forum: Ammo & Parts
Topic: The Offcial Machinist Thread: Revised 01/04/2014
Replies: 1097
Views: 309687

Re: The Offical Machinist Thread

I was thinking something light like derlin for the parts as a lighter piston travels faster

the piston is simple round derlin with rubber sealing face


the barrel centering thing is like this:
but a a bit more open to allow more flow
by sagthegreat
Fri Jan 03, 2014 7:15 pm
Forum: Off-Topic Hobbies
Topic: "Offtopic-posts-topic" NSFW
Replies: 6637
Views: 1352760

Re: "Offtopic-posts-topic" NSFW

no i checked the link, it's working. I meant RPG tube :D Was wondering how the guy got injured, was he firing too close to something or did the launcher fail? looks to me like the launcher may have gotten an hairline crack from or before they were cleaning it, and the pressure from the round blew t...
by sagthegreat
Fri Jan 03, 2014 7:11 pm
Forum: Ammo & Parts
Topic: The Offcial Machinist Thread: Revised 01/04/2014
Replies: 1097
Views: 309687

Re: The Offical Machinist Thread

I need 2 small things machined: a relible piston with sealing face for my coaxial gun, it will be based in 1/2 inch type m copper pipe also need something that can center the barrel inside the pipe body without obstructing airflow. The barrel will be normal hobby shop 6mm brass tubing. I am in ameri...