Mar 16, 2015 page 1 of 5 - making a mirror grinding amp polishing machine - posted in atm, optics and diy forum hello, i am on the half of the way to make a mirror grinding machine inspired by original m-o-m design. i made the pulley arrangement such a way that, both the turn table amp eccentric spins at 50 rpm fixed. i wont go for making mirror bigger that 10.5 or max 12.Maintenance system include the tool post grinding machine and the versa mil attachment. tool post grinding machine the tool post grinding machine, see figure 5-5, is a machine tool attachment designed to mount to the tool post of engine lathes. it is used for internal and external grinding of cylindrical workplaces. refer to chapter 7 for a The machine was used for making numerous mirrors over the next four decades and extensively modified over that period. it embodies the sub-diameter tool design approach to making large telescope mirrors whereby the grinding tool is drawn across the mirror blank by programmable rotating arms.