I have an M2 Dual which has been performing flawlessly, except for a loud squeal during a rapid vertical change, usually at the end of each print. I would say that it's a lubrication problem, but I can't figure out what I'm doing wrong.
3-in-1 oil wiped on to the vertical bars with a paper towel (both above and below the printing platform, with the platform run up and down immediately afterwards, and a touch of lithium grease on the vertical screw, both above and below.
Does anyone have any advice?
The official subforum for discussion of the installation and use of the official M2 Dual Extruder upgrade.
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