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My front face of the print is lousy!

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We are having problems with our Ultimaker 2+ at work. It seems like the nozzle is further away at the front part of the product we are trying to print, but we have tried to do the "start up" process 3 times now, to adjust the plate to the nozzle, but the problem stays the same..

On the picture you can see what I mean. It's the "soft"-spot in the front of the model that is out error. I hope someone can tell me what we are doing wrong :)
I should mention, that the printer has worked as it should, before this problem appeared.. I have also gone through the maintainance procedure, and tried to clean the work plate.


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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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