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MBL test pattern
With the MBL-test-pattern you should be able to see how good MBL is working. All 9 pieces should have the same layer adhesion as well surface finish.
This test should be also show if a new firmware still does the job or got better or even worse. It makes sense to redo this after a firmware update.
With the First layer calibration you should have the "perfect" Live-Z. But it may be different for the center, so please follow these instruction:
- Write down the 1st layer cal value you are using.
- Open the attached
MBL-test-pattern.3mf
file in PrusaSlicer and set your Printing (0.2mm Speed or Quality), Filament and Printer settings to the material and printer you are using. - remove all edge patterns
a_
toh_HyperCal.stl
so you just have thecenter_HyperCal.stl
left on build plate. - Slice it and export the gcode.
- Clean the bed.
- Print the
center_HyperCal
if the print looks good / perfect continue with MBL-test-pattern-
Redo this print and adjust the Live-Z until you are happy with the result and write down the Live-Z value for the center print.
Don't forget to clean the bed each time.
-
- Open the attached
MBL-test-pattern.3mf
file in PrusaSlicer and set your Printing (0.2mm Speed or Quality), Filament and Printer settings to the material and printer you are using. - Slice it and export the gcode.
- Clean the bed
- Print the whole pattern.
If MBL is working fine all 9 test pattern prints should have the same good adhesion and surface finish.
If some pattern aren't "perfect" you can focus to print one by one to determine where MBL may have an issue:
- Connect your printer via USB to Pronterface/Octoprint
- Run
G80
command and after thatG81
- Copy/save the
G81
results for later.
- Copy/save the
- Open the attached
MBL-test-pattern.3mf
file in PrusaSlicer and set your Printing (0.2mm Speed or Quality), Filament and Printer settings to the material and printer you are using. - remove all except the one you want to fine tune / do research on, so you just have ONE left on build plate.
- Slice it and export the gcode.
- Clean the bed
- During printing the one pattern try to fine adjust the Live-Z so it looks "perfect" / equal to the center print.
-
Redo this print until you are happy with the result and write down the Live-Z value for that print.
Don't forget to clean the bed each time.
-
If you want to report back your results, please add at least following information:
- Printer: MK2.5, MK2.5s, MK3, MK3s
- MMU: MMU1, MMU2, MMU2s
- Firmware version printer and MMU
- Live-Z found via 1st layer cal.
- Live-Z value for the
center_HyperCal
print. - Live-Z values for other pattern prints that needed adjustment.
- Add
G81
results.
- On some printers the PINDA temp calibration can improve the print results
- You can start the PINDA temp calibration via LCD menu: Calibration -> Temp. calibration -> Calibrate
- Best practice is to run the PINDA Temp. calibration in the "coldest" print environment.
- If the temperate your print environment changes with the seasons it makes sense to rerun the Temp. calibration when it get's colder.