Had a nasty clog that ate the left hot end. Replaced the dual extruder while I waited for parts, and now when I put the dual back on and ran ALL of the calibration routines successfully, I have to lower the z-height offset at least .4mm to get a decent first layer - before the clog I had INCREDIBLE first layers with no tweaks needed.
I have done the following in this order:
Calibrated the sensor
Auto-leveled the bed
calibrated the z-offset
calibrated the x/y offset
did the x/y calibration verification.
All that works fine and appears to have nice first layer, but as soon as I do a normal print I have to lower the z-offset almost to the max.
Almost to the point that I am going to do a full manual bed level…
Thought’s before I take on that pain?
Thank you!
