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So the leveling procedure only gets you so far. It's hard to say if there is a problem in the right edge of the photo - that doesn't look serious - it should be fine on the next layer. But in the bottom left area you definitely have a problem - nozzle too far from glass. As you seem to say.
Just ignore the leveling procedure and turn the front left screw 1/2 turn CCW to move the glass up a bit (this will cause the opposite corner to go down a little but that is probably okay for this part - if not then you have to turn the other two screws CCW 1/4 turn to put that spot back where it was).
When the UM2 is printing skirt or brim that is your opportunity to correct the leveling in the "corners" or "extremes" of your part.
Having said all that also note that the glass is typically not flat and so you want your bottom layer to be nice and thick (0.3mm is a good default and is what all versions of cura default to for bottom layer) to compensate for dips in the glass. "plate" glass is very very flat. But UM uses tempered glass.
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Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more.
S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
(Sorry, was out of office when this released)
This update is for...
All UltiMaker S series
New features
Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
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gr5 2,173
So the leveling procedure only gets you so far. It's hard to say if there is a problem in the right edge of the photo - that doesn't look serious - it should be fine on the next layer. But in the bottom left area you definitely have a problem - nozzle too far from glass. As you seem to say.
Just ignore the leveling procedure and turn the front left screw 1/2 turn CCW to move the glass up a bit (this will cause the opposite corner to go down a little but that is probably okay for this part - if not then you have to turn the other two screws CCW 1/4 turn to put that spot back where it was).
When the UM2 is printing skirt or brim that is your opportunity to correct the leveling in the "corners" or "extremes" of your part.
Having said all that also note that the glass is typically not flat and so you want your bottom layer to be nice and thick (0.3mm is a good default and is what all versions of cura default to for bottom layer) to compensate for dips in the glass. "plate" glass is very very flat. But UM uses tempered glass.
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