Instructions | 3D printer XY calibration using a scanner

1

Download the git

The git can be downloaded from:

https://git.ram.eemcs.utwente.nl/schoutenm/scanner_3D_printer_calibration

or

https://doi.org/10.4121/17075885.v1
2

Generate the gcode for the test pattern

Run "test_pattern_generator.py" using your favorite Python IDE. The code is written for a diabase H-series printer. If you are using a different printer you may have to change the settings in "calibration_pattern.py" for your printer.
3

Print the calibration pattern on a piece of paper

Use the generated gcode file to print the calibration pattern. Be sure to use filament that has a large contrast with the paper that you are using. For example black filament on white paper.
4

Scan the piece of paper with the calibration pattern

Scan the piece of paper with the calibration pattern using a flatbed scanner. Try use maximum resolution for the best accuracy.
5

Analyze the calibration pattern

place the scan in the folder analyzer/example/data. Adjust the name such that the filename ends with the tool numbers followed by -1. Adjust the name of the file and the used tool numbers in "analyse_all.m". Then run "analyse_all.m".

3D printer XY calibration using a scanner