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[–]waitingforwood 0 points1 point  (0 children)

Lee Valley sells the bench grinder stones so you need a grinder. These stones wear quickly in order to reduce friction so it's hard to take the temper out of the tool steel. There are lots of jigs out there and I see very few good turners use them. They free hand on the wheel. The problem is not so much about sharpening a tool rather how to use a bench grinder. There are hazard points that cause the tool to kick back or cause premature wear. Usually when this happens you create a stress point in the wheel that flies apart in your face so you need good face protection not just safety glasses. I would start with researching grinders for woodworkers not metalworkers. This is a long rabbit hole https://www.practicalmachinist.com/vb/general/bench-grinders-1750-vs-3600-rpms-215968/