Basic handle with inset to fit a 7/16 nut

thingiverse

Human: Designed a custom handle to fit perfectly on my RV's waste valve (Valterra type). The valve features a 1/4" UNC threaded shaft that smoothly glides in and out for easy operation. This handle is securely fastened onto the thread using a captive nut on one side and an identical locking nut on the other, providing a sturdy connection. With minimal modifications, this design can be easily adapted to fit a 6mm shaft and 10mm nut. Print Settings: Printer: Da Vinci 1.0 Rafts: Yes Supports: No Notes: No supports are required; I successfully printed this handle with the Hex inset, face down, on the bed. In Meshmixer, I added support for the Hex hole, which worked flawlessly for me. I printed at low quality and 10% infill to test its operation, and surprisingly, it proved to be durable enough that I haven't needed to print another yet!