This is still a bit of a work in progress but so far it has been working fine for me.

It is a jig to use on a Grizzly Variable Speed Wet Sharpener, but it might work on others of the same style. The shaft to mount this on the Grizzly is slightly under 1/2" (15/32"). The inserts are designed for Wen lathe chisels (1" roughing gouge, 1/2" and 3/8" spindle gouges). With a bit of adjustment, I would expect them to work with other makes.

In addition to the printed parts, you will need 2 M6x30mm long and 2 M6x20mm long Hex Socket Head Cap Screws as well as 1- M6 hex nut and 3 M6 threaded brass inserts.

The inserts might need light sanding and rotating them in the holder for a bit to get the fit right. I printed them in PETG but I don't think it really matters what you use as long as it is slightly flexible. I used some supports mostly for the holes and a slight overhang on the inserts. The photos show the orientation that I printed them.

I'll have tried to include enough pictures to show how they go together and fit on the sharpener. Once mounted to the proper angle to sharpen, you simply rotate the chisel handle back and forth against the grinding wheel.