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TMC2208 Y Axis Sometime Doubles Movements and Speeds

Posted by Rossosaurus 
TMC2208 Y Axis Sometime Doubles Movements and Speeds
September 24, 2020 08:28AM
Hi folks,

I'm having this wierd issue at the moment with my printer (Wanhao i3 V2, SKR 1.4, TMC 2208 UART @ 1/16, Bltouch, Marlin 2.0.x) where randomly the printer will move double the distance and at twice the speed it is supposed to. Most commonly this happens at the beginning of a print when it is homing the Y axis and mid way through the travel it will speed up. Sometimes however if the bed homes properly the printer will print fine for a while and then appears to randomly double all movements on the Y axis. I have a theory that this might be caused by the Y axis stepper controller losing connection with the board mid print and causing the movements to double but I have no proof for this. Does anyone have any idea what may be causing this or any idea on how to troubleshoot this issue? I've attached my marlin config to this post to help. Thanks in advance.
Attachments:
open | download - Configuration.h (83.3 KB)
open | download - Configuration_adv.h (138.2 KB)
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