This is a jig for paring the corners on a mitered dovetail joint. I designed the jig to work in conjunction with my microjig matchfit hardware for clamping the jig and workpiece securely. But at the least you'll need to print one screw knob from the dovetail hardware to assemble the jig. Assembly also requires one 10-32 flanged heatsert, and a 10-32 x 1.5" hex screw.

Knob and other assorted sliding dovetail hardware can be found here:
https://www.thingiverse.com/thing:4828897

Railcore II

No

No

.2mm

30

I printed this with 3 perimeters and a fairly high infill.