Hi, I have a Bearings Beaver Mill with Anilam Crusader Control, Anilam Glass scales, SEM DC servos and Glentek drives. Everything is working fine - for now. The motors have tachos which feed to the Glentek drives.
I am considering upgrading this to Mach 3. I am reading the comments on stability and oscillations when using linear scales instead of encoders on the motors. I cannot see why something which worked 30 years ago (and is still working) cannot be replicated today.
The plan is to retain the DC servos with tachos. I am replacing the Glentek drives with AMC which accepts tacho input. The glass scale output (quadrature) would go to the KAnalog which then also supplies the +-10V drive signal for the servos. Mach3 interfaces to the KFlop processor.
Has anyone attempted/done a similar project before?