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About this part
Printing it
Settings that work for these parts
Functional, not pretty
0.2 mm layers, 4 perimeters, 25 % gyroid infill. Perimeters carry the load in a printed part far more than infill does — add walls before you add infill.
Holes print undersized
Every screw hole here is modelled at its nominal size. Enable hole horizontal expansion of +0.1 to +0.2 mm in your slicer, or drill them out.
Material
PLA is fine indoors. Anything in a hot car, near a printer's heated bed, or outdoors wants PETG or ASA — see the filament database.