Chisel Sharpening Jig/Stechbeitelschleifhilfe

This is a jig that holds a chisel at the correct angle while sharpening with a whetstone. It uses common 608 bearings as rollers.

Features:

• printed angle adjustment wedges 25 - 30°

• rollers left, right and center enable you to use the whole width of the stone

• cutouts for common chisel sizes in the lid, but you can also use other sizes

Hardware:

• 3 x 608 bearing, sealed ones preferred

• 6 x M8 washer small (DIN 125, ISO 7089)

• 1 x M8 screw, hex or socket head, 65 mm or longer (or use threaded rod and an additional nut)

• 1 x M8 nut

• 2 x M5 screw hex head, 40 mm or longer

• 2 x M5 nut

Print info:

• 4 walls, 40 % infill, but use whatever you see fit

• no supports, orient as seen in the slicer screenshot

• Very tight tolerances. The wedges must not wiggle for the angle to be correct. If they don't fit, file the dovetail joint with sandpaper until they just fit 

• Print slowly, you want accuracy

• I printed with PCTG, but you can use anything you want, as long as your shrinkage compensation is well adjusted

How to use:

• Insert the angle wedge you chose.

• Insert the chisel, don't tighten the screws fully.

• Adjust the chisel position until it sits flush with the wedge.

• Remove the wedge

• Sharpen

• Ruin your chisel by using it to open a paint can so that you can sharpen it again, because it is so much fun :D