
Search found 25986 matches
- Sat Jul 02, 2022 6:12 pm
- Forum: Pneumatic Cannons
- Topic: Austro-Hungarian valveless pneumatic mortars of World War I
- Replies: 24
- Views: 6826
- Thu Jun 23, 2022 10:09 am
- Forum: Pneumatic Cannons
- Topic: pneumatic spearguns...
- Replies: 19
- Views: 5567
Re: pneumatic spearguns...
An example of the Crosman "Rocket Spear Sea Gun" came up for sale locally, were it a different economic climate I would have contemplated purchasing it but alas, these are difficult times and choices must be made :roll: It did however persuade me to do some more digging and I found the patent . http...
- Thu Jun 23, 2022 6:17 am
- Forum: Pneumatic Cannons
- Topic: GGDT down?
- Replies: 1
- Views: 124
Re: GGDT down?
I've uploaded the files to spudiles and links to the archived pages here
- Thu Jun 16, 2022 10:19 am
- Forum: Hybrid Cannons
- Topic: Hybrid pumped weapon project
- Replies: 10
- Views: 658
Re: Hybrid pumped weapon project
Very interesting (and creative use of Tippex!) and good that you made it work!
I had done some experiments with lead projectiles sealed in a breech when playing with hybrid cartridges, metal on metal there were no leaks and it worked to about 8x if I recall correctly.
I had done some experiments with lead projectiles sealed in a breech when playing with hybrid cartridges, metal on metal there were no leaks and it worked to about 8x if I recall correctly.
- Thu Jun 16, 2022 10:10 am
- Forum: BB, Airsoft, and Pellet Guns
- Topic: Semi-Automatic Airsoft Pistol
- Replies: 8
- Views: 1698
Re: Semi-Automatic Airsoft Pistol
Very clean, I'm guessing it's a double-action trigger and a simple "tee" bolt?
My Fionda works the same way.
My Fionda works the same way.
- Thu Jun 16, 2022 9:27 am
- Forum: Hybrid Cannons
- Topic: Hybrid pumped weapon project
- Replies: 10
- Views: 658
Re: Hybrid pumped weapon project
Is it my impression or did you use balsa wood in the construction?
You can always tell when a spudder is also interested in model aircraft
You can always tell when a spudder is also interested in model aircraft

- Thu Jun 16, 2022 9:14 am
- Forum: Hybrid Cannons
- Topic: Hybrid pumped weapon project
- Replies: 10
- Views: 658
Re: Hybrid pumped weapon project
Very clean work, nice "proper" evolution after all that prototyping...
I like the markings too, although perhaps it's more of a Fuerza Aerea (+Butanea) Argentina sort of equipment
I like the markings too, although perhaps it's more of a Fuerza Aerea (+Butanea) Argentina sort of equipment

- Thu Jun 16, 2022 8:24 am
- Forum: Combustion Cannons
- Topic: Spud gun disguised as classic artillery
- Replies: 6
- Views: 528
Re: Spud gun disguised as classic artillery
That is some beautiful work, excellent job!
I second the advice to properly meter fuel and as to ignition, instead of a percussion cap perhaps you can use the same hammer to strike a piezo that will generate a spark?
I second the advice to properly meter fuel and as to ignition, instead of a percussion cap perhaps you can use the same hammer to strike a piezo that will generate a spark?
- Thu Jun 16, 2022 7:19 am
- Forum: Pneumatic Cannons
- Topic: Anyone seen this PROOF yet if so or even if Not check it out
- Replies: 13
- Views: 808
Re: Anyone seen this PROOF yet if so or even if Not check it out
Fascinating device! From what I can tell, it's a variation on the detent BBMG using a flexible seal as a detent. I had made several experiments along these lines, here is one of them in 3mm caliber. One of the issues I encountered is that the following BB plugged the barrel too quickly, so the air w...
- Thu Jun 16, 2022 3:32 am
- Forum: Pneumatic Cannons
- Topic: the air cartridge we wanted
- Replies: 4
- Views: 653
Re: the air cartridge we wanted
Interesting stuff! It seems to go around laws restricting barreled weapons by effectively being a spigot gun without a "barrel" per se. I've found a picture of the cartridge internals: https://i.imgur.com/zm2eNsH.jpg My impression is that it is the exhaust valve piston design we all know and love, w...
- Wed Jun 15, 2022 12:16 pm
- Forum: Hybrid Cannons
- Topic: Will it work?
- Replies: 1
- Views: 185
Re: Will it work?
Welcome to the forum!

If you'll be using butane gas as a fuel, it will all be used when you fire, so you will have to re-inject fuel and re-pressurize for every shot.

If you'll be using butane gas as a fuel, it will all be used when you fire, so you will have to re-inject fuel and re-pressurize for every shot.
- Sun Jan 02, 2022 5:22 am
- Forum: Off-Topic Hobbies
- Topic: "Offtopic-posts-topic" NSFW
- Replies: 6631
- Views: 741105
- Sun Jan 02, 2022 5:03 am
- Forum: SpudFiles Discussion
- Topic: Auto Gas Design
- Replies: 2
- Views: 1107
Re: Auto Gas Design
Interesting design, if I understood correctly it's intended to cycle with a constant flow of gas?
- Sun Jan 02, 2022 4:53 am
- Forum: Off-Topic Hobbies
- Topic: My current hobby: Cowboy Action Shooting
- Replies: 17
- Views: 10408
Re: My current hobby: Cowboy Action Shooting
That is some impressively fast and accurate shooting!
- Sun Jan 02, 2022 4:48 am
- Forum: Off-Topic Hobbies
- Topic: Merry Christmas
- Replies: 1
- Views: 770
Re: Merry Christmas
... and a Happy New Year!