Search found 35 matches

by Luke31
Sat Sep 04, 2021 1:14 pm
Forum: Pneumatic Cannons
Topic: Paintball Artillery Gun
Replies: 11
Views: 1805

Re: Paintball Artillery Gun

I got to physical work again on the prototype gun. I'm starting with the gun and building down from there. I built the platform the gun will sit on and hooked up the recoil system. The gun sits on a small platform that is connected to the base using drawer sliders. You can also see the breach loadin...
by Luke31
Sun Aug 01, 2021 3:51 pm
Forum: Pneumatic Cannons
Topic: Paintball Artillery Gun
Replies: 11
Views: 1805

Re: Paintball Artillery Gun

I made a video demonstrating the concept for it.


I decided to forego the legal trailer idea. There's too much involved, its also more expensive. I still plan on towing it off road though.
by Luke31
Sun Jul 25, 2021 9:19 pm
Forum: Pneumatic Cannons
Topic: Paintball Artillery Gun
Replies: 11
Views: 1805

Re: Paintball Artillery Gun

I'm continuing to flesh out all the details. Double checking all the proportions to make sure its turnout out the way I want it to look and feel. I started thinking about the possibility of towing this like a trailer. I made some provisions for a leaf spring and a tire fender. There's alot of other ...
by Luke31
Mon Jul 19, 2021 12:34 pm
Forum: Pneumatic Cannons
Topic: Paintball Artillery Gun
Replies: 11
Views: 1805

Re: Paintball Artillery Gun

Working out the dimensions of the carriage. Such as ground clearance, legs, and more. Lots of rethinking of how all of the systems will work. Finally found a ball bearing platform for the horizontal movement so I don't have to rely on a wheels. Figuring out all the math and loose end of the pulley s...
by Luke31
Fri Jun 18, 2021 3:18 pm
Forum: Pneumatic Cannons
Topic: The Yeet Machine
Replies: 9
Views: 1814

Re: The Yeet Machine

Anymore progress on this?
by Luke31
Thu Jun 17, 2021 12:16 am
Forum: Pneumatic Cannons
Topic: Paintball Artillery Gun
Replies: 11
Views: 1805

Re: Paintball Artillery Gun

Here's some pictures of the 2nd prototype. Its a 1 1/4 inch barrel that allows a 2ft shell to be loaded. I built two different breach loading mechanisms I thought could work. The first is a screw in breach that has the air enter from the bottom. The 2nd is a cam lock where the air enters directly fr...
by Luke31
Sat Jun 12, 2021 2:42 pm
Forum: Pneumatic Cannons
Topic: Paintball Artillery Gun
Replies: 11
Views: 1805

Re: Paintball Artillery Gun

Neat! We need a few more details on how it works, it looks like there's 3 sprinkler valves and the chamber can't be the whole length of that bottom pipe (or could it?). Only suggestion I have is to pneumatically pilot the three valves instead of electronically. You can hear the diaphragm "honking" ...
by Luke31
Wed Jun 09, 2021 11:30 pm
Forum: Pneumatic Cannons
Topic: Paintball Artillery Gun
Replies: 11
Views: 1805

Paintball Artillery Gun

Hello people. I would like to share a project I've been working on for awhile. Its going to be an air cannon designed as an artillery gun for paintball games. Below are some 3D images I've done of the final vision (I do 3d modeling). Its going to shoot groups of water balloons at the opposing team. ...
by Luke31
Thu May 27, 2021 2:19 pm
Forum: Pneumatic Cannons
Topic: Gluing schrader valve in mini coaxial
Replies: 3
Views: 872

Re: Gluing schrader valve in mini coaxial

Rubber is meant to make holes drilled in pipe "air tight". I always use it when screwing in my schrader valves.
by Luke31
Thu May 13, 2021 12:09 pm
Forum: Pneumatic Cannons
Topic: Issues with the GGDT software
Replies: 5
Views: 1078

Re: Issues with the GGDT software

Not sure how fast I am opening the ball valve. I'm guessing 100 milliseconds. For my application, I'm shooting multiple projectiles at once(12 6 ounce water balloons). How can I best I model this in GGDT? I just put the total weight of the projectiles in the projectile data. The balloons will scatte...
by Luke31
Tue May 11, 2021 12:56 pm
Forum: Pneumatic Cannons
Topic: Issues with the GGDT software
Replies: 5
Views: 1078

Re: Issues with the GGDT software

Could someone explain the valve settings? My air cannon uses a 1'' ball valve, but I don't see any options in the settings for that. What is.. Seat Diam Chmber Seal Generic valve Barrel Seal Hammer How am I supposed to know the friction psi of my projectile. Anyway to test that? Is psig the same as ...
by Luke31
Sun May 09, 2021 1:50 pm
Forum: Pneumatic Cannons
Topic: How to make an Air cannon sound cooler/louder?
Replies: 17
Views: 2136

Re: How to make an Air cannon sound cooler/louder?

Maybe a metal cone/cylinder at the end of the barrel will make the most noise. Like when you hit cymbals on a drum set.
by Luke31
Wed May 05, 2021 11:48 am
Forum: Pneumatic Cannons
Topic: How to make an Air cannon sound cooler/louder?
Replies: 17
Views: 2136

Re: How to make an Air cannon sound cooler/louder?

In my experience it amplifies the noise significantly for the shooter too. Yes, I've done that by mistake while making a dummy silencer for looks, and made a loudifier by mistake, a piece of 1" PVC pipe works really good. Does just a cylinder at the end work? If you could post an image of your setu...
by Luke31
Tue May 04, 2021 12:10 pm
Forum: Pneumatic Cannons
Topic: Basic pneumatic cannon
Replies: 2
Views: 725

Re: Basic pneumatic cannon

It looks like the air flows into the handle when firing. That area basically needs to fill up with air before it can produce a force down the barrel. Might be effecting performance.

*edit* nevermind, saw the valve is in front of it.
by Luke31
Tue May 04, 2021 11:59 am
Forum: Pneumatic Cannons
Topic: Whats best valving for pneumatics
Replies: 5
Views: 1158

Re: Whats best valving for pneumatics

I have done test with sprinkler valves, duel sprinkler vales, triple sprinkler vales, piston vales, and ball valves. I have surprisingly found that a basic ball valve performs the same if not better than the triple sprinkler valve system. I built a 2'' piston valve but never really recorded anything...