Re: [CAD_CAM_EDM_DRO] Servo with linear encoder

r_fl_z@... wrote:

> I'm considering using a linear encoder for position on one axis of a
> proposed servo system, possibly with EMC. May the linear encoder be
> incorporated into the axis control loop for the servo (and EMC)...in
> place of the built-in rotary encoder?

As long as the backlash between the motor and the linear encoder is
small, it should work. Generally, forget using this with Acme screws,
as the machine will start hunting from one side of the backlash to the
other, constantly. If the encoder has a resolution of .0005" (standard
for DRO's) then you may not get very smooth operation, and, obviously,
a move of .0001" has no meaning.

Jon