How much gantry curvature is too much?
Posted: Tue Jan 23, 2018 10:52 pm
I'm just about to embark on the BLTouch mod for my M2 Dual, but want to sanity check first.
I'm doing it because I'm having trouble getting good first layers across the entire bed -- either the center is squished to paper thin, or the edges don't stick.
My print bed is 0.25" MIC6 that I have triple-checked is as flat as can be measured. But in careful measuring with a dial indicator, it sure seems like both my X and Y axes have decent warps. If I get the very X+Y center calibrated to 0.0 on the dial indicator, a map of bed height readings is:
(That's the center, four corners, and midpoints along four sides)
I'm wondering if I should tear down the rails and scrub/solvent underneath them, or if this level of variation is normal and I should just go straight to BLTouch to compensate.
I'm doing it because I'm having trouble getting good first layers across the entire bed -- either the center is squished to paper thin, or the edges don't stick.
My print bed is 0.25" MIC6 that I have triple-checked is as flat as can be measured. But in careful measuring with a dial indicator, it sure seems like both my X and Y axes have decent warps. If I get the very X+Y center calibrated to 0.0 on the dial indicator, a map of bed height readings is:
Code: Select all
-0.17 | -0.09 | -0.21
-0.08 | 0.00 | -0.09
-0.23 | -0.10 | -0.16
I'm wondering if I should tear down the rails and scrub/solvent underneath them, or if this level of variation is normal and I should just go straight to BLTouch to compensate.