Need a way to get those hard to reach plastic bolts going? This is a print-together hand ratchet with a 1/2" square socket. I'll add some down size adapters for 3/8", 1/4" soon. Very sturdy when printed properly and has a positive clack action.
30% minimum. Turn off infill for small regions.
The clearance for the race is 0.4mm, so be sure you can print those gaps with minimal overlap. Printed in PLA and PETG, both work great. PLA will give you a stiffer ratchet action.
You may need to torque the inner part loose from the race. I didn't for PLA, it came loose right off the print bed.
Fusion 360 Baby.
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This is currently a quasi-wip. I'll upload some different versions with more and less pawls to suit more materials.