Basic Information:
Printer Model: Artillery Sidewinder X1
MCU / Printerboard: MKS GEN_L V1.0
klippy.log (1.5 MB)
klippy.log
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Describe your issue:
I have been using Klipper with my printer for a little while (Octoprint as my frontend) and have had reasonable success, but since I installed a BLTouch I’ve had absolutely zero luck getting it to print at all. All I get is spaghetti, because I’m getting no bed adhesion whatsoever.
Based on the characteristics of the purge line and the way the printer is behaving I am almost 100% certain the toolhead is not close enough to the bed. It winds up “dragging” the first layer lines all over the bed, and nothing is sticking in place anywhere. I’ve tried using skirts, brims, and rafts, and I can’t even get the first layer of a raft to stick.
I’ve gone through the Z Offset calibration steps several times. The mount for my BLTouch is a fixed mount, and every time the calibration has reported an offset of 2.5mm when doing the paper test. I’ve tried using SAVE_CONFIG to store the configuration and I’ve also tried manually editing the value in the [bltouch] section of the config file. I’ve tried moving the offset both directions (up and down) and it seems to have no effect whatsoever on the adhesion. I’m getting the same results every single time, no matter what value I specify in z offset.
I’ve gone through the physical setup of my printer as well. I replaced the rollers on the x gantry to make sure there’s no wobble in the toolhead, made sure the belts are all tensioned correctly, etc. I added a textured PEI sheet because I’ve never had great results with the glass bed on the Sidewinder, did an extensive bed screw adjustment where I made sure I had very consistent resistance on the paper at all 4 screw positions. I even bought an infrared thermometer and used it to calibrate the bed temperature in case the magnetic backing for the PEI sheet caused some thermal loss (it did, about 10C, hence the 70 degree setting for my bed temp).
So, given all of this, I have become quite convinced that the z offset is the issue, but I have no idea what to do to fix it, since updating the configuration file, restarting the firmware, etc. doesn’t seem to be affecting the toolhead position at all. Anyone have any suggestions?