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LulzBot Mini bed calibration update saves your bed.

LulzBot released several updates to the LulzBot Mini firmware that are included with the recent Cura LulzBot Edition version 20.

Among the updates is a check when the Mini runs auto calibration bed leveling to ensure that the calibration is within an acceptable range.  If any of the corner checks are outside the range- typically caused by plastic on the nozzle preventing contact with the corner washer, the calibration start over with a re-wipe of the nozzle.  If the calibration fails twice, the print is halted.   This prevents damage to the bed from a bad calibration.

Do Not Want!
Do Not Want!

Here’s a guide to to perform this easy LulzBot Mini firmware update:

Download and install the latest version of Cura LulzBot Edition

In the Machine Menu, ensure that LulzBot Mini is selected, then click "Install default firmware"
In the Machine Menu, ensure that LulzBot Mini is selected, then click “Install default firmware”

Click Start

Click Start

 

Click OK when the firmware upgrade finishes. You're done!

Click OK when the firmware upgrade finishes. You’re done!

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3D printed “selfies”!

If you haven’t tried opening a .jpg or .bmp in Lulzbot’s free/ open source Cura printer management software, give it a try!
– Open Cura
– Click “Load Model”

– Select your picture file
– Select (usually) lighter is higher to get convex “selfies”.
– For “lithophanes”, “mirror” the image in X, (typically) select “darker is higher” to achieve a concave effect, flip the printed image over so the bed side is facing you, and backlight for a cool effect!
Other tips:
Light smoothing is usually good.
Scale the print uniformly to get the X or Y size you want, then unlock uniform scaling and reduce Z to 10mm or so.

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