# Calibrating problems

**URL:** <https://forums.maslowcnc.com/t/calibrating-problems/7972>\
**Category:** Troubleshooting\
**Tags:** calibration\
**Created:** [December 3, 2018, 9:20pm UTC](https://forums.maslowcnc.com/t/calibrating-problems/7972 "2018-12-03T21:20:17Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![madgrizzle](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/madgrizzle/32/1372_2.png) [@madgrizzle](https://forums.maslowcnc.com/u/madgrizzle)\
**Post date:** [December 5, 2018, 12:17am UTC](https://forums.maslowcnc.com/t/calibrating-problems/7972/4 "2018-12-05T00:17:20Z")

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You must have selected quadrilateral configuration and not triangular configuration during calibration.

> [@How To: Get Calibrated!](https://forums.maslowcnc.com/t/how-to-get-calibrated/6036/3):
>
> Step 2: Select How Chains Attach to Sled This step should be easy also. 99% chance if you are reading this, you are using “triangular” kinematics and not “quadrilateral”. Originally, the chains connected to the sled as shown in the figure to the left, called a “quadrilateral” system. This methodology works, but the math is complex and accuracy never achieved what was desired. A few people still use it and Maslow is shipped with a triangular kit now… Most everyone has either a ring…

If you have a ring, then you need to select triangular.

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