Interesting concepts in the video.
Has me thinking about how I may be able to convert my 2x48 grinder to do that type of hollow grinding. It looks like it wouldn't be too hard for the way my grinder is set up. I would just have an adjustable table and get a urethane covered drive wheel for my grinder. Use a table made from 1" thick aluminum and a granite surface plate from Tandy leather. Wouldn't cost very much at all except the custom made contact wheel. I also like the grinding jig for the flat platen too. That would be easy to make as well.
Thanks for the link Dave.
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