My First Design, My First Gun
Posted by Lycan0100@reddit | GunnitRust | View on Reddit | 15 comments
I decided to design a Derringer but with the aesthetic of those from the "Wild West". Ammunition up to .32 caliber or any other below that as long as it is centerfire. Handguards made of wood, metal, or plastic. What do you think? 😉
VIVA LA PATRIA, CANEJO!!!
GunnitRust@reddit
https://old.reddit.com/r/GunnitRust/comments/1s6jgnb/winter_rust_2026/
Join us please
Shit_On_Wheels@reddit
That's a good start!
However, look into two-piece triggers. Current design is extremely dangerous.
Lycan0100@reddit (OP)
Ok, thanks! 🫡👌
Skafandra206@reddit
🇦🇷🇦🇷🇦🇷
FloridaManPrints@reddit
PLA plus will do fine. Only PETG is brittle
Admirable_Scholar_36@reddit
Unless this is just a fitment test, you absolutely should not be printing anything less than solid for a diy gun
Lycan0100@reddit (OP)
Don't worry! It's just a test model. I'm thinking of using Flex filament, which is almost as flexible as rubber.
Admirable_Scholar_36@reddit
Why flexible?
Lycan0100@reddit (OP)
For safety. The guns shake violently when fired, and I don't want a bunch of plastic embedded in my face...
Admirable_Scholar_36@reddit
If you use a super flexible filament you likely won’t contain the pressure of the cartridge and it could frag on you. Pla plus would be a better material, given it fails in a ductile manner, but still has good strength.
Lycan0100@reddit (OP)
The barrel is a rectangular piece of steel that is bolted to the Derringer (not a tube like in most weapons of this type). There's no need to worry about pressure.
Admirable_Scholar_36@reddit
Your breech face I’m assuming located in the rectangular cutout in the frame? If you use a flexible material you likely won’t have the required rigidity to ensure the breech block/bolt will effectively seal against the rear of the cartridge. If that is not supported it will move out of the chamber before the chamber pressure has equalized with surrounding or at least reduced to a safe level, and the case will frag. It’s why you have case ruptures in guns with really really light bolts.
Lycan0100@reddit (OP)
Thanks for the information. I'll keep that in mind.
Antique-Echidna-1600@reddit
You should use this as sand casting dies.
Lycan0100@reddit (OP)
It's not a bad idea.