Simple supportless knife sharpening jig
thingiverse
This is an improvement of my old design at https://www.thingiverse.com/thing:4010819. The sliding stick is wider and more rigid, and it supports narrower knives, such as small pocket knives. Print with 2 mm walls/top/bottom for stability, and no supports. Needs two 10 mm M5 screws with two hex nuts. There are three stone holders for various standard sizes, and one for sandpaper (named 160_05_23.3mf). The sizes are given in the filenames in millimeters. The supported sharpening angles are roughly 15, 20 and 25 degrees, but this also depends on the clamping position. Fusion 360 source included. NOTE! It's named .brd and you need to rename it to .f3d, because Thingiverse does not allow .f3d file extensions.
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