# VCarve two-sided project problem

**URL:** <https://forum.onefinitycnc.com/t/vcarve-two-sided-project-problem/17811>\
**Category:** CAD (Design) Software\
**Created:** [January 2, 2023, 7:50pm UTC](https://forum.onefinitycnc.com/t/vcarve-two-sided-project-problem/17811 "2023-01-02T19:50:26Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![cyberreefguru](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/cyberreefguru/32/27385_2.png) [@cyberreefguru](https://forum.onefinitycnc.com/u/cyberreefguru)\
**Post date:** [January 3, 2023, 1:47am UTC](https://forum.onefinitycnc.com/t/vcarve-two-sided-project-problem/17811/2 "2023-01-03T01:47:51Z")

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Hi Mike - did you check if your machine y rails are parallel and square to the z axis? There is a [thread](https://forum.onefinitycnc.com/t/is-your-router-frame-a-parallelogram-mine-was/6086) about the y rails being a parallelogram rather than a rectangle, which causes the problem you are seeing.

-Tom

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