Re: [CAD_CAM_EDM_DRO] Axis Re-set ?

Ian Wright wrote:

> Hi Jon,
>
> If its a feature, I'm not sure its working correctly - or maybe I'm just not
> understanding it right. When I was altering the files for Allan's 5-axis
> setup I found that the 'A' axis, which had been working fine on my 4-axis
> arrangement, had set itself to 28.34 and that this was echoed in the
> 'offsets' at the top right of that window.
> When I tried to zero it using the right-click method, it changed to 56.68
> and continued incrementing by 28.34 each time I tried to repeat the zeroing.
> Where it got this initial figure from I have no idea but, once I had reset
> the entry in the 'settings' file to zero, it seemed to behave itself. I
> tried a G92 but it didn't seem to work. I'll have another look through all
> the files later today when my brain is back in gear - its still reeling from
> the unaccustomed effort of thinking about the files yesterday!! <G>

OK, this has been seen, I believe. It was a bug introduced in a particular
version of EMC. Form what I remember, the version before and after
do not have this problem. You want to normally keep the screen display
in relative actual or relative commanded mode. Machine coordinates
are only of use when setting up the limit and home switches. After they
are properly set, you should not need to see these coordinates. The
relative coordinates are the ones that are set relative to a workpiece
coordinate reference.

Jon