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waveletlet

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  1. Just the opposit, the right core is too low and for the first few layers is smushed so hard up against the glass no filament comes out. I did a calibration print with five 1 mm steps, and it only prints 3.5 steps. The first approx 1.5 mm are completely lost, but you can see the ghost of the missing steps on the printer (where it was pushing down so hard nothing was coming out). So basically, the first 1.5 mm of anything I print on that side are lost. And while it's trying to print that 1.5 mm, it's pushing flush against the glass , which I'm assuming isn't great for the print core or the glass
  2. Ok, 10 rotations of the back leveling knob (from finger tight) makes it so loose I can't finish the leveling. I can't get the front corners high enough to match, and also can't get it close enough to do the calibration card fine tuning. Even 8 full rotations is too loose. Does that say anything about the state of the bed springs? I had the machine in storage for about a year, maybe there's some oiling/cleaning needed? But again, the first head prints 100% fine, measured a calibration print with calipers and everything. I'll try swapping the heads and see if
  3. It's a UM3E. The first print head prints fine so I don't think it's the Z screw. I did do a manual level (more than once!) and still have the problem, but I'll try with the loosening the bed springs suggestion.
  4. Silly me, I never measured my test objects. When I said prints with the head could successfully finish and look normal, I was actually wrong! Theyr'e about 2 mm short. This all started happening after I updated my firmware from something over a year old to v5.2.11.20190503. Unfortunately I didn't take note of what the previous firmware version was. After the firmware update I did an XY calibration and the 2nd extruder came out all ghostly as above but I thought it was a filament (wet, old...) issue and ignored it.
  5. I'm having a problem with my second print head not being z-aligned correctly. It seems to be so close to the bed that the first layer (or two?) doesn't really come out. If I do a print with only that head, it can successfully finish and looks normal except the brim is the faintest shadow on the build plate. If I do a print with both heads, eventually it'll do the sweep the plate dance. Pictures attached from print with both heads. Identical model being printed with two different brands of black filament (trying to compare brands), the one on top is the first head and the one on the
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