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https://gotcharocks.com/cabking-lapidary-machine/
This video is about the lapidary arts. How to make a jasper agate guitar pick using a Cabking lapidary machine. I walk through All the steps of forming a stone with a lapidary machine starting with 80 grit and moving through all the grinding wheels till I get to 3000 grit. Then I polish the jasper with cerium oxide.
This should be a good tutorial for begging stone cutters and advanced artist to try something new.
I have free lapidary work sheets at https://gotcharocks.com/lapidary-stone-cutting-steps/ if you are interested.
All the best,
Michael Seiler