One way (pun intended) to sharpen a 40-40 bowl gouge is with a Oneway Vary-Grind jig plus the gauge from Ron Brown. This works fine but there are several setup steps required.
I had a Vari-Grind II that I was not using and decided to dedicate it to sharpening a 40-40 grind. The guide rod fit in its slot was a bit sloppy so I first added a couple layers of shrink tubing.
Due to the geometry of the Vari-Grind II, the projection must be 1-3/4 inches. The guide rod is adjusted to it highest position and here is the first trial fit.
The extension for the square tubing was 3-5/8" in my case. I made a 3-5/8" spacer out of some 1/2" Al angle and also added a 1-3/4 stop block.
The "standard" that I had was a bowl gouge sharpened using the Vari-Grind + Ron Brown gauge. I colored the end with a marker and gave it a go. This new setup followed the previous grind very well and I'm happy.
I had a Vari-Grind II that I was not using and decided to dedicate it to sharpening a 40-40 grind. The guide rod fit in its slot was a bit sloppy so I first added a couple layers of shrink tubing.
Due to the geometry of the Vari-Grind II, the projection must be 1-3/4 inches. The guide rod is adjusted to it highest position and here is the first trial fit.
The extension for the square tubing was 3-5/8" in my case. I made a 3-5/8" spacer out of some 1/2" Al angle and also added a 1-3/4 stop block.
The "standard" that I had was a bowl gouge sharpened using the Vari-Grind + Ron Brown gauge. I colored the end with a marker and gave it a go. This new setup followed the previous grind very well and I'm happy.
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