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How to interpret calibration results  

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kelchm
(@kelchm)
Eminent Member
How to interpret calibration results

Does anyone have any information on how to interpret the calibration results?

In particular, I haven't found any explanation of the "y distance from min" values. What do these measurements actually represent? IS there a correct absolute value for these, or should we just be concerned about the difference between them?

Any tips on improving the measured skew after the printer has been assembled? I'd really like to get my skew below the 0.12º threshold.

Posted : 21/12/2017 3:40 am
Peter
(@peter-12)
Estimable Member
Re: How to interpret calibration results

I would guess that, and I may be very wrong, that the printer measures the distance from the end of the Y axis to the first probe point on the left side and right side.

Posted : 21/12/2017 9:02 am
Knickohr
(@knickohr)
Member Moderator
Re: How to interpret calibration results

Same topic here : https://shop.prusa3d.com/forum/prusa-i3-kit-building-calibrating-first-print-main-f6/y-distance-from-min-t12404.html

Thomas

Posted : 21/12/2017 9:32 am
kelchm
(@kelchm)
Eminent Member
Topic starter answered:
Re: How to interpret calibration results


Same topic here : https://shop.prusa3d.com/forum/prusa-i3-kit-building-calibrating-first-print-main-f6/y-distance-from-min-t12404.html

Thomas

Thanks. That helps a little, but this is also one of those situations where a picture/diagram would be super helpful.

I'm also not entirely confident in the repeatability of the skew measurements. I've reran the calibration probably about 10 times now and while their generally in the same ballpark back to back, they've also slowly converged towards slight skew over time.

My current calibration results are as follows:

Y distance from min:
Left: 9.80 mm
Right 9.44 mm
Measured skew: 0.10º

Posted : 22/12/2017 5:47 pm
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