Search found 1676 matches

by Moonbogg
Tue Jul 20, 2021 5:32 pm
Forum: Pneumatic Cannons
Topic: Rate my cannon
Replies: 10
Views: 201

Re: Rate my cannon

Nice cannon. You're taking a significant risk by using PVC with that much pressure inside. It can fail within it's rated pressure for no apparent reason because it's plastic and it tends to be fragile. It won't just crack, split or tear, but it will fragment and explode in your face. Wear safety gog...
by Moonbogg
Wed Jul 07, 2021 2:49 am
Forum: General How-To & Discussion
Topic: Hacksmith of potato guns?
Replies: 6
Views: 280

Re: Hacksmith of potato guns?

Honestly I think people would be asking for different content pretty fast. Take note of the slingshot channel. It's called the slingshot channel, yet he does way more than make slingshots. He holds true to the basic concept by mostly using rubber for power. I'm not sure potato guns could be as diver...
by Moonbogg
Tue Jun 29, 2021 8:53 pm
Forum: Pneumatic Cannons
Topic: Tennis ball launcher
Replies: 2
Views: 224

Re: Tennis ball launcher

Very cool. I made a tennis ball cannon in high school from a rolled and welded sheet like that. It worked perfectly and I bet yours will too.
by Moonbogg
Tue Jun 29, 2021 5:58 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Victorian "Air Cane" brought back to life
Replies: 24
Views: 2742

Re: Victorian "Air Cane" brought back to life

The damage video was fun to watch. This was a great project.
by Moonbogg
Tue Jun 29, 2021 5:43 pm
Forum: Hybrid Cannons
Topic: Hybrid Piston Pilot Air Ratio
Replies: 8
Views: 483

Re: Hybrid Piston Pilot Air Ratio

Is this a vented pilot design? I worked the numbers for an 8X mix and a 75% of maximum opening pressure for the piston. Same pressure in the pilot as the preignition chamber pressure. I get a pilot piston diameter of 16.73mm (assuming a 6.5mm piston diameter chamber side), so basically the same as M...
by Moonbogg
Fri Jun 18, 2021 3:35 pm
Forum: General How-To & Discussion
Topic: "In the world of spuds today"
Replies: 2454
Views: 233022

Re: "In the world of spuds today"

I agree with JSR. I wouldn't expect any major revolutions in the airgun world, but instead continued incremental evolution and possibly changing popularity trends. You can already buy a PCP semi-auto that will shoot the wings off a gnat. What would really get me excited is the commercialization of S...
by Moonbogg
Thu Jun 17, 2021 12:31 am
Forum: Combustion Cannons
Topic: Ignitor not working/no spark
Replies: 2
Views: 177

Re: Ignitor not working/no spark

The sparking may be unreliable because the gap is pretty big and there's 4 of them that the electricity has to jump across. If it worked reliably with 1 gap, then I think this might be the issue. It could be something else, but I think there's too much resistance the current is trying to jump through.
by Moonbogg
Tue May 18, 2021 1:30 am
Forum: General How-To & Discussion
Topic: "In the world of spuds today"
Replies: 2454
Views: 233022

Re: "In the world of spuds today"

Apparently it was a "hot" loaded round, he was very lucky that one of those lugs didn't kill him. That's what he thought, but there was a bit more going on. The sabot material was building up in the barrel, and the signs where there, he did say the shots were going off target and the recoil felt di...
by Moonbogg
Sat Apr 24, 2021 2:57 pm
Forum: Pneumatic Cannons
Topic: How to make an Air cannon sound cooler/louder?
Replies: 17
Views: 1288

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

I think it comes down to simply having excess air leaving the barrel at as high of a pressure as possible. Basically, I think you need an inefficient cannon. Also, maybe you can leave the cannon as it is and launch a light weight projectile. That should allow the air to escape at a higher speed and ...
by Moonbogg
Thu Apr 22, 2021 2:29 pm
Forum: Hybrid Cannons
Topic: Xtreme-patator
Replies: 11
Views: 1043

Re: Xtreme-patator

150-300psi pre pressure is what, 10-20x roughly? Definitely use steel for everything. Other than that, it looks pretty nice!
by Moonbogg
Sun Apr 11, 2021 8:48 pm
Forum: Ammo & Parts
Topic: Track pumps and Co2 inflators
Replies: 4
Views: 679

Re: Track pumps and Co2 inflators

If it were me, I'd go with an HPA tank, either a SCUBA tank or a large paintball air tank. That's the problem with pneumatics and even higher mix hybrids: you gotta get an air supply out to your shooting area. I use low mix hybrids and a regular bike pump. In your situation I'd go with HPA because I...
by Moonbogg
Sun Apr 11, 2021 4:15 am
Forum: Combustion Cannons
Topic: Build Log: MFIC
Replies: 76
Views: 9008

Re: Build Log: MFIC

Welcome back. That's a hell of a story. I hope to see a build from you soon. I fell away from this hobby for a long time too, but then the bug bit me and I got back into it, although my last project wasn't as YUGE as this thing you made, lol. That was a hilariously huge canon!
by Moonbogg
Tue Apr 06, 2021 3:55 pm
Forum: Pneumatic Cannons
Topic: Butterfly Valve- How to Quickly Open
Replies: 1
Views: 387

Re: Butterfly Valve- How to Quickly Open

I found a video of one that uses a cylinder. https://www.youtube.com/watch?v=8y1H8bYAehs I'm thinking just yanking it open might be fine as well. I think it might depend on the size of the cannon? I'm not too sure. I seem to remember reading that you can't hit the pumpkin too hard or it will break. ...
by Moonbogg
Mon Apr 05, 2021 4:26 pm
Forum: Pneumatic Cannons
Topic: Pressure rating for Coaxial cannons
Replies: 12
Views: 1493

Re: Pressure rating for Coaxial cannons

That would be pretty sweet. Keep us updated.
by Moonbogg
Sun Apr 04, 2021 9:09 pm
Forum: Pneumatic Cannons
Topic: Pressure rating for Coaxial cannons
Replies: 12
Views: 1493

Re: Pressure rating for Coaxial cannons

Yes. I assume he's cutting holes in the front and back for the barrel to slide through, but I'm not sure if that's what he meant.