RE: [CAD_CAM_EDM_DRO] Synchronizing Two Servo Motors

Phil,

I'd be tempted to suggest a dsPIC33 (MC) micro. It can take two encoders,
and continually compare the accumulated values for them. Some programming
required.

Alan KM6VV

> -----Original Message-----
> On Behalf Of Mattison
>
> I'm building a gantry router with dual lead screws to drive the gantry,
> and
> I need a way to make sure they never get far enough out of sync to rack
> the
> gantry out of shape. I thought about mechanical linkages but I want to use
> two motors for the extra speed and power, and I already have the motors.
> Does anyone know of a circuit that can take two encoders as input, plus
> the
> step and direction inputs, and output a fault signal if the two encoders
> get
> out of step? There are several ways I could build such a gizmo, but
> figured
> I'd check first to see if I can avoid reinventing the wheel.
> --
> Phil Mattison