Homemade Surface Grinder by turntable - Hi guys; here is my homemade surface grinder. made from Makita chop saw. works very well. in the pic was setting up to grind one of those so called precision machined angle plates from across the pond. it was off on all sides as much as .008. after grinding it is square within 1/10. not bad for a cheap grinder. now I will lap it to perfection.