The file 'Stronger Flex Door Carabiner 3D Printer Model' is (stl) file type, size is 456.5KB.
After using the original design on my keys for several months, I had to constantly reprint due to the pin breaking. The rest of the carabiner is incredibly strong but the pressure fit pin was a weak point. This design uses an M3 nut and a M3 socket head screw to replace the pin for added durability, and reliability.
Carabiner_All_Parts.stl | 514.4KB | |
Carabiner_Body.stl | 296.7KB | |
Carabiner_Clip.stl | 208.0KB | |
Carabiner_Washer.stl | 9.8KB |