Re: [Emc-users] How to set certain AXIS settings to defaults?

[Glenn R. E. <gle...@ba...>]

Jon,

Are you implying that you manually, or otherwise, get the table to within
one encoder revolution of home and then do a homing sequence with EMC?

Glenn

-----Original Message-----
From: emc...@li...
[mailto:emc...@li...] On Behalf Of Jon Elson
Sent: Wednesday, March 26, 2008 10:51 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] How to set certain AXIS settings to defaults?

Gary Fixler wrote:
>     One of the reasons I often drill a useless hole someplace at the
>     start of the
>     project, and write my code with that as the 0,0,0 point.  That makes
>     getting
>     back to within a couple thou a bit easier.
> 
> 
> That's a great idea. I would love an absolute positioning system - 
> something that was always the same for the mill, at least between full 
> strip-downs, and rebuilds.
> 
Well, it depends on how your homing system works.  I have index pulses on my
encoders, and home to those pulses.  I get quite repeatable homing that way.
In theory, I could shut down one day, fire it up the next day, home the
axes, and be right on the same alignment to the vise jaw or whatever.

Jon

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