# Steps /mm shifted **URL:** \ **Category:** X-Carve\ **Created:** [November 4, 2019, 9:31pm UTC](https://community.inventables.com/t/steps-mm-shifted/80022 "2019-11-04T21:31:39Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![MartinW.Mcclary](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/martinw.mcclary/32/63385_2.png) [@MartinW.Mcclary](https://community.inventables.com/u/MartinW.Mcclary)\ **Post date:** [November 4, 2019, 9:49pm UTC](https://community.inventables.com/t/steps-mm-shifted/80022/2 "2019-11-04T21:49:28Z")
If the ultimate upgrade includes threaded lead screws over the timing belts, you’ll no doubt have to do the math to adjust your 100, 101 and 102 accordingly from what they were. You didn’t say if you did that or are just trying numbers. Just as an example > [@Upgraded Z axis with cnc4newbie ebay slide](https://community.inventables.com/t/upgraded-z-axis-with-cnc4newbie-ebay-slide/66219): > > A few days ago, I ordered a Z axis slide from the CNC4NEWBIE store on Ebay [https://www.ebay.com/itm/272686042076](https://www.ebay.com/itm/272686042076) and just got it installed. I’m posting this in the hopes it helps somebody else. First, the slider is rock solid, and I couldn’t be happier. I believe that the particular model I ordered has a different screw than the other ones (I kept running across a number of $102=50.059, but that did not work for me at all. I wound up around $102=248 though I still need to dial that in. Anyway… --- _[View the full topic](https://community.inventables.com/t/steps-mm-shifted/80022)._