The robo rests do have an angle scale. To get the most accurate angles, the platform, when set to 90 degrees should be even/level with the center of the wheel hub, and 1/8 inch away from the wheel (indicator line for that). I would guess John is using the 35 degree angle setting. Every grinder sets up a little different, so getting machine shop accurate angles is next to impossible. Getting them close and exactly repeatable does happen. If John's rest is a hair high, or a hair back from the ideal set up, that would make it a bit more acute (?not sure, but more pointy...). A 1/2 inch piece of plywood changes the angle about 5 degrees more shallow, so 35 would become 30..
John, some times to remove the old burr, I use a burnishing tool and a light pass or two. My NRSs are a 1/4 round profile so they can go in either direction. With a half round or ) profile, you could go either direction, and wouldn't need to flip it over. Dang, now I might have to buy another scraper or two....
robo hippy
John, some times to remove the old burr, I use a burnishing tool and a light pass or two. My NRSs are a 1/4 round profile so they can go in either direction. With a half round or ) profile, you could go either direction, and wouldn't need to flip it over. Dang, now I might have to buy another scraper or two....
robo hippy
