Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: SkyMoCo on August 20, 2011, 01:13:20 PM

Title: Home and absolute vs relative coordinates
Post by: SkyMoCo on August 20, 2011, 01:13:20 PM

After literally years of building, I finally am at the point of actually using my CNC router.    My Software Install/Config manual is pretty dog eared from figuring things out on on my own, but I'm stuck on what seems like a basic operation.

I am using limit switches at the end of the axis travel as my home switch.   But I want my 0.0 to be at the center of my 24" table.   So I have my offset set to 12 in the home/limits page and when I hit the ref all axis, it works like I expect, travels to home, and sets the absolute (machine coordinates) DRO to 12.   Perfect so far.

Here is where my lack of understanding makes it funky.   I then manually enter 12 in the incremental DRO and then hit the GoTo Zero button and it works like I want traveling right to the center.

Is there a better way, or can I change the button's to do what I want?   Travel to home switch, set DRO to 12, and go to 0.0.

Title: Re: Home and absolute vs relative coordinates
Post by: ger21 on August 20, 2011, 04:46:49 PM

Set your Work offsets to zero, so it matches machine coordinates. Then zero should be the center of the table.