Re: [CAD_CAM_EDM_DRO] Re: calibrating cnc systems

ballendo@... wrote:

> Hi,
>
> Some thoughts about this step size calibration:
>
> Many control software packages only offer "whole" number step sizes.
> In many cases this will be fine, but for those machines using the type
> of drive(s) Jon mentions below, it will often prove inadequate to have
> only the choice of 999,1000,1001 steps (for example). The "true" steps
> may be 1000.5467 (or some other non-integer number).
>
> That error can/will build up and create problems if not taken into
> account by either the calibration(by deciding WHERE you will allow the
> error to exist) or the software.

EMC does not have this limitation, ALL calculations are done in
floating point, so the steps per unit of measure is a real number.

Jon