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Stepper Current changing

Posted by Mr Kroll 
Stepper Current changing
November 02, 2024 02:03PM
Hello,

Have been experiencing unexpected movement issues while printing.

I.E. - Zeta axis does not move properly during Z hop or across a layer, the layer height changes to the point of under extrusion. [Z height drops]
My first layer offset changes print to print, as well

I have found that the stepper M.A. settings have been randomly changing, as reported by M122 I have not seen any overtemperature warnings.

I am running;

MARLIN 2.1.2.3
SKR 3 controller
TMC 2209's { BTT assures me that they are rated at 2.0A per stepper coil}
Stepperonline steppers {.9 deg. for the Zeta}

Any idea what is causing the M.A. settings to change?

I have now turned off "Monitor Driver status" {apparently it can lower current settings in some situations} & and I have reduced the current settings. I am still encountering movement issues, although far fewer.

Edited 1 time(s). Last edit at 11/02/2024 03:51PM by Mr Kroll.
Attachments:
open | download - Configuration.h (126.9 KB)
open | download - Configuration_adv.h (173.4 KB)
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