Uneven print after successful calibration
After successful calibration, in the "readjust distance between nozzle and heatbed" step, the print is uneven: the line is thinner on the left side and thicker on the right (see attached photo)
what can we do about this?
J.J
Re: Uneven print after successful calibration
One: Watch where you put your fingers. Hand oils and PLA do not mix and will cause you all sorts of issues once you get past the bed level.
Two: Use the 7x7 Bed Level in 3.7 firmware. It addresses most of the non-level bed causes.
Three: If you haven't already done it, do an XYZ calibration or manually run teh X-Axis into the top stops a few times to ensure the X-Axis is parallel with the frame. Also, make sure the Y-Axis rods are fully seated in their holders and the cable ties are holding them securely. In severe bed level cases, it's worth checking to see if there is any debris in the clamps, under the rods. I don't think your case is severe.
As an FYI:
Hot Water wash: often, as needed
Handle the bed only by the edges.
Wash the bed in hot water, use a fresh paper towel as a wash cloth, with a few drops of plain dish soap (Dawn, unscented, no anti-bacterial, etc.). Rinse well in hot water - if you have very soft water, rinse a bit longer.
Dry the bed with a fresh paper towel.
Handle the bed only by the edges.
Place bed on printer.
Alcohol rinse: every few prints
Once in a while, an alcohol rinse is helpful to remove PLA residue. It does not remove finger oils.
Pour a 5 cm puddle of 91%+ alcohol in the middle of the bed, use a fresh paper towel to scrub the bed. Wipe up all the alcohol.
Streak test: when contamination is suspected and after a wash
With a fresh piece of paper towel, and very clean fingers, dampen the towel with 91%+ alcohol, and wipe the bed side to side moving back to front, like you're painting it with alcohol. The alcohol should be thin enough on the towel it quickly evaporates. If you see any streaks, the bed is dirty and needs a wash.
Acetone wash: infrequent
Pour a 2 cm puddle of acetone on the bed, scrub it around with a fresh paper towel. It will evaporate fast as you clean. This step removes PEI oxides that form over time and with heat, and improves PLA adhesion to a like new state.
Re: Uneven print after successful calibration
What Tim said :geek: .... also congratulations you have done quite well printing the built into firmware ziz zag live Z setting as seen in your picture...
Many of us here have found that if you set your live z with this method https://shop.prusa3d.com/forum/assembly-and-first-prints-troubleshooting-f62/life-adjust-z-my-way-t2981.html it is far more intuitive and easier to use than the zig zag method in the firmware