# Issue when starting a job, after homing

**URL:** <https://community.inventables.com/t/issue-when-starting-a-job-after-homing/40504>\
**Category:** X-Carve\
**Created:** [August 6, 2017, 5:17pm UTC](https://community.inventables.com/t/issue-when-starting-a-job-after-homing/40504 "2017-08-06T17:17:38Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![KikoLobo](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/kikolobo/32/67251_2.png) [@KikoLobo](https://community.inventables.com/u/KikoLobo)\
**Post date:** [August 6, 2017, 5:17pm UTC](https://community.inventables.com/t/issue-when-starting-a-job-after-homing/40504/1 "2017-08-06T17:17:38Z")

</div>

Hello all.

I am using an X-Controller and a 1000,1000mm machine.

My homing cycle works great. At least that’s what I think. After pressing home the machine goes home and the console returns an ok without errors.

My machine values read at: -789, -789, -1 while at home. (is the -1 correct?)

Before starting a job, I go to the zero in the stock and set my work zero values. This is done after homing.

Then when I start a job, the machine moves to the correct start position (not work zero but where the first carve will be done) and the Z axis goes up… and up beyond the homing position!!! it cracks for a bit and then starts the carve…

But of course the work zero values for Z are off. Way off.

Any ideas what I am doing wrong or what is wrongly configured?

---

<div class="post-metadata">

**Author:** ![DavidAnnetta](https://avatars.discourse-cdn.com/v4/letter/d/e9c0ed/32.png) [@DavidAnnetta](https://community.inventables.com/u/DavidAnnetta)\
**Post date:** [August 6, 2017, 7:04pm UTC](https://community.inventables.com/t/issue-when-starting-a-job-after-homing/40504/2 "2017-08-06T19:04:26Z")

</div>

Home first, then set work zero, then start. What is your “safe z setting”

---

<div class="post-metadata">

**Author:** ![KikoLobo](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/kikolobo/32/67251_2.png) [@KikoLobo](https://community.inventables.com/u/KikoLobo)\
**Post date:** [August 6, 2017, 7:39pm UTC](https://community.inventables.com/t/issue-when-starting-a-job-after-homing/40504/3 "2017-08-06T19:39:16Z")

</div>

> [@DavidAnnetta](#):
>
> “safe z setting”

Where is that setting? GRBL?

I am also checking to see if I have the latest F360 post processor… If I home first and then set zero, it will drag the tool… before lifting.

Do you have soft limits on?

---

<div class="post-metadata">

**Author:** ![DavidAnnetta](https://avatars.discourse-cdn.com/v4/letter/d/e9c0ed/32.png) [@DavidAnnetta](https://community.inventables.com/u/DavidAnnetta)\
**Post date:** [August 7, 2017, 2:20am UTC](https://community.inventables.com/t/issue-when-starting-a-job-after-homing/40504/4 "2017-08-07T02:20:14Z")

</div>

The setting is in easel or ugs.

---

<div class="post-metadata">

**Author:** ![JustinBusby](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/justinbusby/32/30906_2.png) [@JustinBusby](https://community.inventables.com/u/JustinBusby)\
**Post date:** [August 7, 2017, 2:53am UTC](https://community.inventables.com/t/issue-when-starting-a-job-after-homing/40504/5 "2017-08-07T02:53:54Z")

</div>

Safe Z is a setting in your CAM and is implemented as part of your Gcode file. There’s a few other things it could be called.

---

<div class="post-metadata">

**Author:** ![KikoLobo](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/kikolobo/32/67251_2.png) [@KikoLobo](https://community.inventables.com/u/KikoLobo)\
**Post date:** [August 7, 2017, 3:20am UTC](https://community.inventables.com/t/issue-when-starting-a-job-after-homing/40504/6 "2017-08-07T03:20:52Z")

</div>

Can’t seem to find it in CNCJS… Looking!