# Off in Y? Chain sag?

**URL:** <https://forums.maslowcnc.com/t/off-in-y-chain-sag/5565>\
**Category:** Troubleshooting\
**Created:** [August 8, 2018, 6:56pm UTC](https://forums.maslowcnc.com/t/off-in-y-chain-sag/5565 "2018-08-08T18:56:20Z")\
**Posts on this page:** 1\
**Showing post:** 79

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**Author:** ![ScrumdyBum](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/scrumdybum/32/4779_2.png) [@ScrumdyBum](https://forums.maslowcnc.com/u/ScrumdyBum)\
**Post date:** [August 21, 2018, 8:34pm UTC](https://forums.maslowcnc.com/t/off-in-y-chain-sag/5565/79 "2018-08-21T20:34:08Z")

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For example:  
If you run calibration and you get a benchmark error average of 3  
Rotational radius of 135  
Chainsagcorrection of 28.5

Then you run the triangulation test cut pattern and get a benchmark error average of 6  
Rotational radius of 123  
Chainsagcorrection of 52.8

Then you up your rotational radius to 140 and get a benchmark average of .3  
Rotational radius of 140  
Chainsagcorrection of 52.8

If others could repeat that success, then were on to something.

Edit: these are not actual numbers or the process used. Just a “template” or my opinion on how we should post our results and processes.

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