3D Printing Systems UP PLUS 2 User Manual page 24

You will notice that the Max value has increased by 1mm.
Repeat the above "Note 1" until the platform is 0.2mm
away from the nozzle.
TIP a: Once you have setup the nozzle height once, you should do not need to do it again as it is
now saved in the printer.
TIP b: You may need to regularly recalibrate nozzle height after moving the printer, or if you find
the models are not adhering to the platform properly, or are warping.
TIP c: If you happen to crash the platform into the nozzle while setting the height adjustment,
always re-initialise the printer before undertaking any further operations and start again. You do
not need to initialise the printer after every print. Only when switching on the printer or cancelling
a print.
UP Plus 2 3D Printer User Manual v 2013.10.24