[Bug] Z axis calibration wanders

BCN3D / BCN3DSigma-Firmware

Custom Marlin version for the brand new BCN3D Sigma from BCN3D Technologies

https://bcn3d.com

GNU General Public License v3.0

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[Bug] Z axis calibration wanders #134

Open JoeJEngineer opened 7 years ago

JoeJEngineer commented 7 years ago

Since the latest firmware update I have had to adjust the Z axis to be higher using the manual calibration after every print. I'm at .475 now after about 8-10 prints. I'm on the latest firmware and I upgraded the stepper drivers recently but it's done this before and after driver upgrade. Doing a full calibration resets it to around zero but it immediately starts wandering after that.

aliwszyc commented 7 years ago

I concur with this. Mine is wandering too...

lampi87 commented 7 years ago

svengl commented 6 years ago

I cannot really reproduce it, but I also have the feeling that I calibrate and it works fine. And then after some time the z-axis wanders and I get bad first layers and don't understand why because it had worked just in the print before. Then I either add manual correction or have to recalibrate. Is there a way to see in gcode what the calibration result is? That might help to see if there is some shift. Or maybe it can even be restored?