Lapping a V Block With a shop made lap

In this video we use the Marvel Saw to help make a cast iron lap and then precision lap a hardened Anton v block. We check the results of the lapping with a monochromatic light source and an optical flat.
Microgrit abrasives www.microgrit....
Accu-finish/Glendo accu-finish.com/
Optical flats en.wikipedia.o...