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Author Topic: End limit switches and homing switches (Mach3, G540, CNC converted X2 mill)  (Read 14734 times)

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Offline Hood

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Just thought I better post again as I may have confused you regards the Z.
When I said green blob represents X Y Z 0 in machine coords I was actually meaning the way the mill is in the pic. Ie Z fully up is Z Zero in machine coords and when you move it down that is negative values.

Hope I am not making things worse ;D
Hood
Hi. I thought that Z was increasing (becoming more positive) when you cut?

Offline Hood

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In machine coords Z fully up is normally Zero and thus all moves down are negative.
In Work offset coords the top of material is normally set as Z Zero and thus moving up will be positive numbers and moving down into the work will be negative numbers.
I am probably confusing matters for you as I am talking two different coordinate systems, ie machine coords and work offset coords.
Hood
No I think this exercise is very good! I will remember it now. Cutting makes Z more negative. I just will learn that. Thanks again!