Search found 594 matches

by daberno123
Tue Aug 24, 2010 7:24 pm
Forum: Combustion Cannons
Topic: 6.3L Wogglecannon
Replies: 12
Views: 3071

Good stuff, I've got a set of 3" camlocks sitting on a shelf that I'd love to put to use in a combustion like this. :D
by daberno123
Mon May 24, 2010 7:01 pm
Forum: General How-To & Discussion
Topic: Spudding Preference Survey
Replies: 27
Views: 1689

1. Universal fueling calculator and Ballistic efficiency calculator

2. B

3. E

4. D

5. 4

6. 8

7. 2

8. D

9. Hmm... I guess a good shop or a classifieds section would be nice
by daberno123
Thu May 20, 2010 9:01 pm
Forum: Pneumatic Cannons
Topic: Summer projects...
Replies: 30
Views: 1743

Small high (20x) mix hybrid for me. Just got my mcmaster order in... now for the fun :D
by daberno123
Sun May 16, 2010 7:04 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: 1 gallon air compresser
Replies: 52
Views: 2041

You could always buy a larger 5 or 10 gallon tank to run your bbmg off of if you find that 1 gallon isn't enough.
by daberno123
Sat May 15, 2010 8:26 pm
Forum: Combustion Cannons
Topic: Gatling #1
Replies: 124
Views: 51169

How did you get the flow of mix right? Did you just vary the flow of butane until it combusted or was it more scientific than that?

Nevertheless, I'm very impressed and can't wait to see some more videos! :D
by daberno123
Wed Apr 28, 2010 8:17 pm
Forum: Hybrid Cannons
Topic: large diameter barrel
Replies: 7
Views: 766

Steel tubing isn't too expensive but it is heavy... Aircraft Spruce has good prices and sells by the foot.

http://www.aircraftspruce.com/catalog/m ... ng_un1.php
by daberno123
Tue Apr 27, 2010 5:41 pm
Forum: General How-To & Discussion
Topic: mistakes in spud gunning
Replies: 113
Views: 8979

I was shooting a pneumatic bb gun at a a bulletin board hanging on a wall. I t wasn't until late that I found out that the bb was going through the bulletin board and then continuing through the wall behind it... :D
by daberno123
Wed Apr 21, 2010 7:13 pm
Forum: Ammo & Parts
Topic: Help me pimp my compressor
Replies: 98
Views: 5770

Did you ever see a fan installed in a refrigerator or a/c unit directed at the body of the compressor? Yes, I ripped a compressor from a dehumidifier which had a fan that blew over the compressor. It was probably well over 20 years old though, so they might not make them that way anymore. I'd like ...
by daberno123
Tue Apr 20, 2010 9:27 pm
Forum: General How-To & Discussion
Topic: Identify this cannon
Replies: 10
Views: 1512

It's french so maybe it's on the french forum... check there around the time the video was posted
by daberno123
Thu Apr 15, 2010 9:35 pm
Forum: General How-To & Discussion
Topic: High Velocity Launch Systems
Replies: 87
Views: 7079

Has anyone tried to build a gun that safely harnesses the power of DDT? I've seen some research papers on PDE's that claim achieving DDT in 11 inches or less with a 1x mix of propane/oxygen. They use a schelkin spiral to increase turbulence for such a short distance. Any thoughts on whether this is ...
by daberno123
Mon Apr 12, 2010 7:19 pm
Forum: Ammo & Parts
Topic: Basketball cannon anyone?
Replies: 20
Views: 1857

@DR
Where did you get your pipe from? Was it a store or a construction site?

I'd still like to give this a try, but without breaking the bank. So far I haven't seen any pipe at any of the construction sites around me but I'm keeping an eye out...
by daberno123
Sat Apr 10, 2010 6:31 pm
Forum: Hybrid Cannons
Topic: UPGBH10x
Replies: 85
Views: 16258

To speed up cutting out burst disks, there are large diameter hole punches like this which can punch through aluminum foil. A disk cut from a 2" punch fits perfectly into a 2" union.
by daberno123
Thu Apr 01, 2010 6:26 pm
Forum: Pneumatic Cannons
Topic: An idea to double or triple pressure.
Replies: 8
Views: 689

Good idea, but honestly the hydraulic press you're talking about will probably break. I've heard a lot of stories on a few machinist forums about the frames bending on the Harbor Freight version. However, with a properly built hydraulic press it would definitely be doable...just not as cheap as you'...
by daberno123
Wed Mar 31, 2010 6:14 pm
Forum: Pneumatic Cannons
Topic: Pressurizing my gun to 600 psi in 40 seconds.
Replies: 13
Views: 1016

I definitely need to try this. Maybe I'll even take it a step further since I have both an A/C pump and a dehumidifier pump. I could add low pressure air into one and then use that one to feed the other.
by daberno123
Wed Mar 31, 2010 6:07 pm
Forum: Pneumatic Cannons
Topic: Shock Pumps/ MOAR PRESSURE
Replies: 19
Views: 1212

Here's somebody else who took an FX airgun pump and motorized it...http://www.steelplinkers.com/LowbuckCompressor.html

Pretty simple actually, especially it you have access to a lathe...