https://www.youtube.com/watch?v=KqstP9ics2A Great video. He tested hydro testing to failure with PVC and it has enough POP to hurt someone for sure. Not sure if there was air in the line behind the water, but an interesting result. Lots of cool PVC failure testing specifically with spud guns in mind.

Not sure if there was air in the line behind the water, but an interesting result. Definitely, he was pressurising with gas. So there was all the stored pressure of the gas in the line to deal with. Best way to do it is with a grease gun, they go up to stupid pressures (I've done hydroforming with ...

The gun kinda looks like a gun from fallout, it works pretty good and shoots 6mm steel bbs at 700 fps!

Lol. It started all with the ban of fireworks 2020. I wanted to make loud boooms without firework, so I looked around the world, how to make a loooud bang without smoke. I came to "Boga" a forbidden, but we'll known toy in phillipines. It uses this principle to make very fast gasses breaking some ki...

This is my advanced Bottle Bazooka. I had an account here, but lost my email. So maybe you will remember some of the used parts. I wanted to get my Bazooka loaded clean and fast. I wanted to get the perfect fuelmix "out of the box", so I use premium lighters with high output and some one-way valves ...

That's it. It describes the effect perfectly. I use it like this:

It's simple. You use a propane Torch to ignite ? Use it for fueling ! Propane torches make the perfect mix by using the Venturi effect. The Problem is: A Venturi mix has to flow without resistance, so it can't be used with a loaded barrel....normally. But if I use a "over pressure" valve (we use che...

Easyest Nerf Cannon with direct fueling and firing I ever made. It was a 30min Project. This morning. The chamber is waaayyy tooo big. So U see what happens with normal Nerf Darts... But this is only to show the direct fueling by a Torch WITH use of a bigger Lighter or Torch. 4 seconds load and booo...

What waste ? I need 3 seconds to fully load. Without any metering. Who cares for a minimum amount of gas going out ? It depends on the type of Lighter or propanetorch how long it takes. And I don't have to fill the whole system with mix and get all the air out. It's enough to fill the chamber, becau...

I can pierce 0,7 mm sheet steel

That's quite impressive for lead pellets to be honest.

Have you tried with more than two layers of foil?

Bazooka wrote: ↑

Sat Jul 30, 2022 2:15 am

It's dirty, fast and WORKS

It used to be that we heard this attitude from North American users while efficiency was more of a European thing, how the tables have turned

https://youtu.be/2B2ZEN2Qu-Q Quite an interesting achievement but they really need to optimize the projectiles. The velocities they are getting are in the 200 feet per second range which is more arrow than airgun territory, although admittedly that's with projectiles five times heavier than your typ...

I keep forgetting that you have the constraint of an urban area for testing :D The only thing that doesn't convince me is that the "skirt" of the pellet is "welded" to the target plate, it doesn't pass, only the "head" of the pellet passes to the other side... look at the photo I remember a similar ...

hectmarr wrote: ↑

Wed Aug 10, 2022 9:07 am

CHEAP, UGLY AND FUNCTIONAL!

There is a caveat in that "pretty is as pretty does", so when something is functional, there is a certain beauty in it regardless of its aesthetic attributes.