# Calibration log... look normal? Last one took all night and never finished

**URL:** <https://forums.maslowcnc.com/t/calibration-log-look-normal-last-one-took-all-night-and-never-finished/25281>\
**Category:** No Judgement\
**Created:** [December 8, 2025, 11:44pm UTC](https://forums.maslowcnc.com/t/calibration-log-look-normal-last-one-took-all-night-and-never-finished/25281 "2025-12-08T23:44:01Z")\
**Posts on this page:** 3\
**Page:** 2

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**Author:** ![Nov27th2025](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/nov27th2025/32/29771_2.png) [@Nov27th2025](https://forums.maslowcnc.com/u/Nov27th2025)\
**Post date:** [December 9, 2025, 7:57pm UTC](https://forums.maslowcnc.com/t/calibration-log-look-normal-last-one-took-all-night-and-never-finished/25281/21 "2025-12-09T19:57:55Z")

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Ok; 3x3 calibration success! Also backed up my maslow.yaml. Thank you dlang, bar, and ian\_ab!!!

[Maslow-serial (3).log](https://forums.maslowcnc.com/uploads/short-url/mObpxYsVkUaUwxPi3OBWlmEh6NP.log) (12.3 KB)

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**Author:** ![bar](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bar/32/10_2.png) [@bar](https://forums.maslowcnc.com/u/bar)\
**Post date:** [December 9, 2025, 8:54pm UTC](https://forums.maslowcnc.com/t/calibration-log-look-normal-last-one-took-all-night-and-never-finished/25281/22 "2025-12-09T20:54:25Z")

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> [@Nov27th2025](#):
>
> Currently still failing to initialize.

This is usually caused by something like an extra space at the end of a number in the .yaml file. It’s super picky about that 😕

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**Author:** ![ian\_ab](https://avatars.discourse-cdn.com/v4/letter/i/a587f6/32.png) [@ian\_ab](https://forums.maslowcnc.com/u/ian_ab)\
**Post date:** [December 9, 2025, 9:14pm UTC](https://forums.maslowcnc.com/t/calibration-log-look-normal-last-one-took-all-night-and-never-finished/25281/23 "2025-12-09T21:14:57Z")

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> [@Nov27th2025](#):
>
> 11:50am update… fitness numbers are 1.4ish… 3x3 calibration seems to be working… if this works; should I do a bigger calibration like 5x5 or 9x9?

I would recommend it, but backup your maslow.yaml file first. The Fitness figure will drop, but overall accuracy will be better.  
When you save your yamll file I recommend you save with the date as part of the filename. Makes it easier to find the right one later. Of course, you have to reset the name if you need to re-use it.

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