Re: EMC stability

--- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:

> machines@n... wrote:

> > Second thing I picked up was a recent post about the BDI install
> > resetting the referance points after a G30, end of program move.

Has

> > this been dealt with yet?
>
> G30? I suspect you mean M30, which was used to rewind the program

paper

> tape on Allen Bradley CNC controls. Officially, the RS-274D spec
> calls M30 "end of data" and M02 "end of program". The more detailed
> description doesn't really indicate much difference between the two
> commands.
>
>Jon

Sorry Jon this was a typo, It was getting late here <g> but you
didn't answer the question.
Also in a later post to whollid1 last night you stated:-

>I generally try to forget there is even a machine coordinate system.
>That is a detail for the CNC controller to worry about, and not for

me.

>The only place it really matters is when powering back up the next

day,

>you don't have to relocate your fixtures.
>
>Jon

Am I correct then in thinking if you just switch off at the end of a
job it forgets where you are and you have to re zero on start up ?