Bring a piece of 1920s mechanical engineering to your desk with this 100% 3D-printed mechanical replica of the Lignose Einhand .25 ACP. Famous for its clever Chylewski one-handed (“Einhand”) mechanism, the original pistol allowed the user to rack the slide simply by pulling back the front of the trigger guard with their index finger. ( stl step Iges sldprt file format)
This model recreates the iconic sliding trigger-guard action, reciprocating slide, trigger mechanism, and detachable magazine—all designed to be printed and assembled.
- 99% 3D Printed: Includes custom-designed printable parts and snap-fit pins. Need springs
- Functional Mechanical Action: Pull the front trigger-guard lever to retract the slide, cycle the action, and release the detachable magazine.
- Historical Detail: Faithfully modeled after the classic German pocket design, complete with textured grip panels and .25 ACP snap-caps for dry-cycling.
- Easy Assembly: Tolerances are tuned for standard FDM printers with clear part orientation.
- Material: PLA+ or PETG (PETG is recommended for the internal printable springs for better longevity).
- Layer Height: 0.16mm – 0.20mm for crisp mechanical tolerances.
- Infill: 70%–90% (100% on small pins and springs).
- Supports: Minimal supports needed (refer to the oriented STL files).
