# Z axis work envelope exeeded

**URL:** <https://forum.avidcnc.com/t/z-axis-work-envelope-exeeded/6347>\
**Category:** General Chat\
**Created:** [July 12, 2026, 4:24pm UTC](https://forum.avidcnc.com/t/z-axis-work-envelope-exeeded/6347 "2026-07-12T16:24:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tmarshall](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.avidcnc.com/tmarshall/32/6407_2.png) [@tmarshall](https://forum.avidcnc.com/u/tmarshall)\
**Post date:** [July 12, 2026, 4:24pm UTC](https://forum.avidcnc.com/t/z-axis-work-envelope-exeeded/6347/1 "2026-07-12T16:24:31Z")

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I have just upgraded to the EX controller, the AV70 spindle and servo motors. I am getting a “Z axis work envelope exeeded” error in cnc12 and I do not understand why. My Aspire job uses “Material Surface” as the Z zero. I have “Prevent spoilboard dig in” enabled and set to zero. Attached is a screenshot showing the error and the G-code that was being executed when the error occurred. This was part of a drilling operation and It was going to a Z depth of 0.8906. Which is the thickness of my material.  
I tried again going slightly less deep than that and got the same error. Any ideas?

 ![IMG_6674](https://canada1.discourse-cdn.com/flex027/uploads/avidcnc/original/2X/3/3bcc6d7d88b882900111e8e57fb7703f09489b71.jpeg)

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**Author:** ![JeffsDesign](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.avidcnc.com/jeffsdesign/32/5574_2.png) [@JeffsDesign](https://forum.avidcnc.com/u/JeffsDesign)\
**Post date:** [July 12, 2026, 6:39pm UTC](https://forum.avidcnc.com/t/z-axis-work-envelope-exeeded/6347/2 "2026-07-12T18:39:05Z")

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I have mine set for .01 and it doesn’t leave a mark on the spoil board I can’t explain why when you changed the depth it didn’t run unless you had another operation on there that did

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**Author:** ![tmarshall](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.avidcnc.com/tmarshall/32/6407_2.png) [@tmarshall](https://forum.avidcnc.com/u/tmarshall)\
**Post date:** [July 12, 2026, 8:35pm UTC](https://forum.avidcnc.com/t/z-axis-work-envelope-exeeded/6347/3 "2026-07-12T20:35:09Z")

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I changed the spoilboard dig in from 0 to .05 and that took care of it. I might reduce it further.

Thanks