# M2 Upgrade Z Axis Depth

**URL:** <https://forums.maslowcnc.com/t/m2-upgrade-z-axis-depth/16393>\
**Category:** Troubleshooting\
**Created:** [April 3, 2021, 6:55pm UTC](https://forums.maslowcnc.com/t/m2-upgrade-z-axis-depth/16393 "2021-04-03T18:55:30Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Chad\_Marshall](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/chad_marshall/32/16412_2.png) [@Chad\_Marshall](https://forums.maslowcnc.com/u/Chad_Marshall)\
**Post date:** [April 3, 2021, 6:55pm UTC](https://forums.maslowcnc.com/t/m2-upgrade-z-axis-depth/16393/1 "2021-04-03T18:55:30Z")

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My first test cut on the M2 Upgrade and my Z Axis is digging way too deep. I believe this is caused by the difference in gears since before my maslow was attached directly to the Rigid Depth Screw, but I’m having a hard time figuring out what that ratio is supposed to be or where to set it.

Any advice?

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**Author:** ![Orob](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/orob/32/16344_2.png) [@Orob](https://forums.maslowcnc.com/u/Orob)\
**Post date:** [April 3, 2021, 8:22pm UTC](https://forums.maslowcnc.com/t/m2-upgrade-z-axis-depth/16393/2 "2021-04-03T20:22:59Z")

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Makerverse? You have to enter the z axis calibration information

Webcontrol, change z axis pitch to 8

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**Author:** ![Chad\_Marshall](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/chad_marshall/32/16412_2.png) [@Chad\_Marshall](https://forums.maslowcnc.com/u/Chad_Marshall)\
**Post date:** [April 3, 2021, 10:40pm UTC](https://forums.maslowcnc.com/t/m2-upgrade-z-axis-depth/16393/3 "2021-04-03T22:40:38Z")

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Webcontrol, and Oh boy did I get that one wrong!

My guess was 3:1 ratio so I used the guidance in the Meticulous Z instructions and set it to -24.

Thank you!!

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**Author:** ![Orob](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/orob/32/16344_2.png) [@Orob](https://forums.maslowcnc.com/u/Orob)\
**Post date:** [April 4, 2021, 12:35am UTC](https://forums.maslowcnc.com/t/m2-upgrade-z-axis-depth/16393/4 "2021-04-04T00:35:39Z")

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It depends on the gearing for the belt on the motor. The screws are typically, but not always 8 mm per rev. I geared my meticulous with a 60 and a 20 tooth gear, but the m2 appears to have a 1:1 gearing.

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<div class="post-metadata">

**Author:** ![Chad\_Marshall](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/chad_marshall/32/16412_2.png) [@Chad\_Marshall](https://forums.maslowcnc.com/u/Chad_Marshall)\
**Post date:** [April 4, 2021, 2:15am UTC](https://forums.maslowcnc.com/t/m2-upgrade-z-axis-depth/16393/5 "2021-04-04T02:15:57Z")

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I went with -8 and it went 2x deeper than anticipated (on a test piece of scrap) reaching 18mm depth in 3x 3mm passes so I think I’ll need to halve it.

Worse case I’ll tear it down and count teeth but you got me on the right track!

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<div class="post-metadata">

**Author:** ![Orob](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/orob/32/16344_2.png) [@Orob](https://forums.maslowcnc.com/u/Orob)\
**Post date:** [April 4, 2021, 5:51pm UTC](https://forums.maslowcnc.com/t/m2-upgrade-z-axis-depth/16393/6 "2021-04-04T17:51:08Z")

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I just use a micrometer and move and measure