Bayonet Lock Connector OpenSCAD library

thingiverse

I designed this bayonet lock connector OpenSCAD library based on years of observing reliable and easy-to-use designs in aviation maintenance. This design doesn't rely on a spring for added safety, unlike electrical bayonet mounts, but instead incorporates a small bump on the horizontal arm to secure the pins. The library facilitates the creation of both parts of a bayonet lock: the pin and the lock components, with the option to point the pin in or out. You can produce parts with two or four locks. To create a part without the thin lip on the bottom, simply set its height to zero. Some suggested parameters are based on my experience integrating this design into my projects. If you plan to use it with FreeCAD, for example, do not alter the 'detail' variable from 48, as this may prevent FreeCAD from rendering the part correctly. The inner and outer radii should have a difference of at least 6 mm to ensure a solid pin and lock in your part. While thinner parts may work, their success depends heavily on your 3D printer's resolution. I've included a 'gap' variable to establish the gap between the internal and external components. A gap of 0.4 mm works for me, and you should experiment with different values to find the smallest gap that still produces useful parts.