# Force Z Max Checked Seems to work backwards

**URL:** <https://forum.grid.space/t/force-z-max-checked-seems-to-work-backwards/879>\
**Category:** CAM\
**Created:** [March 9, 2023, 4:09pm UTC](https://forum.grid.space/t/force-z-max-checked-seems-to-work-backwards/879 "2023-03-09T16:09:05Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![jasonsaghi](https://forum.grid.space/letter_avatar_proxy/v4/letter/j/48db29/32.png) [@jasonsaghi](https://forum.grid.space/u/jasonsaghi)\
**Post date:** [March 9, 2023, 4:09pm UTC](https://forum.grid.space/t/force-z-max-checked-seems-to-work-backwards/879/1 "2023-03-09T16:09:05Z")

</div>

When roughing, the Force Z Max seems to not work properly (or I’m misunderstanding it). With it checked, it runs the mill through my part between each move. With it unchecked, it raises Z before moving XY to a new location. Is this working correct or am I misunderstanding?

[Z Max\_.kmz](https://forum.grid.space/uploads/short-url/l0lYDL4reEdPq3Ae3FlDSepae7.kmz) (639.1 KB)

 ![image](https://forum.grid.space/uploads/default/original/2X/e/eee1c13410b9e3bfc25079f4f2fcb3aa39fd5e71.jpeg)

---

<div class="post-metadata">

**Author:** ![stewart](https://forum.grid.space/user_avatar/forum.grid.space/stewart/32/21_2.png) [@stewart](https://forum.grid.space/u/stewart)\
**Post date:** [March 11, 2023, 10:35pm UTC](https://forum.grid.space/t/force-z-max-checked-seems-to-work-backwards/879/2 "2023-03-11T22:35:47Z")

</div>

This is fixed in 3.9, but still a bug in 3.8