Jointer Sharpening jig
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Holds 2 Blades at a time at a user specified angle. Uses 6 M3x12 Button or Socket head screws and M3 nuts for assembly. I include multiple versions at different angles to cover most common cases.
Print Settings: PETG, 5 Walls 5 Top and Bottom layers. 15% infill gyroid. (I used a textured plate and did not need a brim or mouse ears for this to stick)
Print Orientation: Print standing tall (vertically)
Personally i printed 2 for use. My Knives were at 40 degrees so i printed a 40 and a 42 degree version. When my knives need a significant regrind i use the 40, and then finish them with the 42 to get a micro bevel and make touching them up much faster in the future. If you have an odd number of jointer knives just rotate through them swapping one out at a time, you can count the number of swipes over the sand paper you do and make sure all 3 get the same number of strokes.
For instance. Blade 1 and 2 in the jig 10 strokes, take out 1 insert 3, 10 strokes. Take out 2 insert 1, 10 strokes. Now all have been ground the same amount.
Onshape Model https://cad.onshape.com/documents/f4ca8419fad19245002f3e67/w/b0452966f5ee1d93da3b31bc/e/214caf177371e800fb48a8f4?renderMode=0&uiState=682f38c6fe5e120187c9c2d4