# X, Y, axis not carving at 90 degree

**URL:** <https://forum.onefinitycnc.com/t/x-y-axis-not-carving-at-90-degree/23812>\
**Category:** Original/PRO Series (Buildbotics) (Gen 1)\
**Created:** [December 4, 2023, 6:57am UTC](https://forum.onefinitycnc.com/t/x-y-axis-not-carving-at-90-degree/23812 "2023-12-04T06:57:14Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [December 4, 2023, 12:38pm UTC](https://forum.onefinitycnc.com/t/x-y-axis-not-carving-at-90-degree/23812/3 "2023-12-04T12:38:47Z")

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Hey Peter,

> [@X axis slop journeyman 50](https://forum.onefinitycnc.com/t/x-axis-slop-journeyman-50/23681/3):
>
> Have you ensured accurately that your machine is [**rectangular** (“squared”) (_bar gauge_) and **coplanar** (“not twisted”) (_fishing line method_)](https://forum.onefinitycnc.com/t/what-do-i-do-first/18349/6)?

> [@What do I do first](https://forum.onefinitycnc.com/t/what-do-i-do-first/18349/6):
>
> to consider a machine ready to start work, I would make sure, especially with the Onefinity CNC machine, that it is
> 
> 1. **rectangular** (“squared”) and that it is
> 2. **coplanar** (not twisted).

> [@Surfacing the Wasteboard (QCW Secure from Beneath - Woodworker X50)](https://forum.onefinitycnc.com/t/surfacing-the-wasteboard-qcw-secure-from-beneath-woodworker-x50/20482/2):
>
> Be sure that before you flatten your wasteboard that your machine is [checked for rectangularity and coplanarity](https://forum.onefinitycnc.com/t/what-do-i-do-first/18349/6), because if it is twisted or a parallelogram, flattening the worksurface will not help.

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