Laser Cutter Door Knob

thingiverse

I recently unwrapped an import 100W 500x700mm laser cutter/engraver. The machine boasts accessibility doors on all sides, which swing open with the help of these unique triangle-shaped rotary latches, accompanied by a single "key" provided by the manufacturer. To ensure I had spares and a more ergonomic grip, I designed a quick 3D print model to create an additional key. Version 1 fits seamlessly alongside the stock key, making it easy to insert and remove. Version 3 was engineered to fit snugly, and after testing, I opted for this design as they can be effortlessly pushed into place while providing a secure enough friction fit that I can simply print one key for each latch and leave them installed.