The Nozzle Offset a quick way to modify the nozzle height value while keep the original value unchanged. Changing the Nozzle Offset will not affect the Nozzle Height saved in the software. However it will result in adjustment of the "final" nozzle height value used for slicing.
The value of Nozzle Offset can be positive or negative. The final Nozzle Height will be the value stored in the software plus the Nozzle Offset.
- Add positive offset will make the nozzle closer to platform, while adding negative offset will make it further away from platform.
- The value of Nozzle Offset will not be changed, or reset automatically. Once a value is set, it will be always there. Offset is useful for compensating consistent error in the measurement of nozzle height. eg. User found auto nozzle height measurement is always too close to platform, so add a -0.2mm will compensate for this error and able to print directly after auto calibration.
Final nozzle height = nozzle height value + offset
the bigger the nozzle height value = closer to platform
So if you want the nozzle to be closer to platform, either increase the nozzle height value or add a positive offset value; if need the nozzle to be away from the platform, reduce nozzle height value or add a negative offset.
This still does NOT tell me how the adjust the value!!!
Do I use a positive or a negative number, and which way round does this affect the overall nozzle height?
If the build plate is at zero then I add a value to raise the nozzle, but if the build plate is at +124.77mm then I need to subtract a value to raise the nozzle.
This is not clear from the documentation.
Many thanks Jason for confirming the correct setup.
BTW my UP mini 2ES is successfully printing in polycarbonate.
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