ratchet.stl is a one piece ratchet for small Allen wrench keys, and then you print adapters depending on the wrench size.
ratchet2.stl has 6 inner blades instead of 4, and they are a bit thicker, try it in case ratchet.stl wears out too fast and no longer locks.
One side is used to screw, the other side to unscrew.
Here is a video showing both: https://youtu.be/DXt_zggA6sM
I printed the ratchet itself at layer 0.2mm, 50% infill, with PLA
I tried PETG, works well too. Not sure which is more robust.
I tried ABS, didn't work, it would not lock. It might need different adjustments.
The adapters should be printed with 100% infill to reduce breaking risk. Ideally they should be printed flat, so that layers are perpendicular to effort, but I hate supports. So I broke a few.
This is to be used with small allen key, from 2mm to 5mm like you often use in electronic devices.
| adapter3mm.stl | 404.6KB | |
| adapter4mm.stl | 442.5KB | |
| adapter5mm.stl | 417.8KB | |
| ratchet.stl | 2.4MB | |
| ratchet2.stl | 2.4MB |
