Cable Grommet With Strain Relief - Hard Plastic
thingiverse
This is a cable grommet designed to be printed out of non-flexible filament (after my previous TPU attempt I still haven't actually tried printing as I've not opened the filament yet). It prints in two identical halfs and screws together and is made parametrically - if poorly designed for parametric approaches - for customisation in freeCAD. Out the box it works for me for USB cables, though needs to be larger for mains flex. One side should be opened up slightly for a clearance hold It is still missing a rear clip to sit in the opening though could be glued. Current design for me self taps on M3x6 allen bolts and grips most standard USB cables firmly. It's designed around a 16mm opening, 3-4mm dia cable. I flattened it against the bed and printed in 0.8mm layers, 50% infill, with bed support.
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