# No bit change in 2 paths - do I still need to zero the Z axis? **URL:** \ **Category:** Controller (Buildbotics) Discussion\ **Created:** [November 2, 2021, 2:34am UTC](https://forum.onefinitycnc.com/t/no-bit-change-in-2-paths-do-i-still-need-to-zero-the-z-axis/8655 "2021-11-02T02:34:25Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![bwcherry](https://avatars.discourse-cdn.com/v4/letter/b/f04885/32.png) [@bwcherry](https://forum.onefinitycnc.com/u/bwcherry)\ **Post date:** [November 2, 2021, 2:34am UTC](https://forum.onefinitycnc.com/t/no-bit-change-in-2-paths-do-i-still-need-to-zero-the-z-axis/8655/1 "2021-11-02T02:34:25Z")
Howdy all you very smart folks! Easy question, but say I had two tool paths calculated (VCarve Pro) and the program thinks it is two different bits. Once the first cut path is completed, then the 2nd file is started but I actually leave the same bit in, do I still need to re-zero the Z axis? I’m actually doing this on purpose to trick the machine to cut a little further out then 32x32. Thanks in advance! ---
**Author:** ![Hermsen.BJ](https://avatars.discourse-cdn.com/v4/letter/h/779978/32.png) [@Hermsen.BJ](https://forum.onefinitycnc.com/u/Hermsen.BJ)\ **Post date:** [November 2, 2021, 2:44am UTC](https://forum.onefinitycnc.com/t/no-bit-change-in-2-paths-do-i-still-need-to-zero-the-z-axis/8655/2 "2021-11-02T02:44:59Z")
No need to rezero… That is saved ---
**Author:** ![pootaholic](https://avatars.discourse-cdn.com/v4/letter/p/8e7dd6/32.png) [@pootaholic](https://forum.onefinitycnc.com/u/pootaholic)\ **Post date:** [November 2, 2021, 7:26am UTC](https://forum.onefinitycnc.com/t/no-bit-change-in-2-paths-do-i-still-need-to-zero-the-z-axis/8655/3 "2021-11-02T07:26:55Z")
Once the first toolpath is completed the bit will return to X0, Y0 & Z0. You cannot ‘Trick’ the machine to cut larger than the soft limits.