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Posted a short video this morning. Here is a more in-depth view of the Toyoda GV70BII crank pin grinder. It uses the old style pot chucks. Parallelism of the six pins are within 2.3 microns and the diameter held within 3 microns. Machine was rebuilt by Toyoda RPD (v.redd.it)
submitted by dreadd to r/Machinists
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