Automated probe accuracy testing

probe_accuracy_test_suite.py is a collection of tests to help checking probe accuracy, precision and drift under different conditions.

1 test, 30 samples at each bed mesh corners - check if there are issues with individual z drives.
20 tests, 10 samples at bed center - check consistency within normal measurements
1 test, 100 samples at bed center - check for drift

On your printer:

curl -sSL https://raw.githubusercontent.com/sporkus/probe_accuracy_tests/master/install.sh | bash

Use python3 probe_accuracy_test_suite.py -h to see all the options

Corner test, 10 samples each: python3 probe_accuracy_test_suite.py --corner 10
5 Repeatability tests: python3 probe_accuracy_test_suite.py --repeat 5
50 probe samples drift test: python3 probe_accuracy_test_suite.py --drift 50
All tests: python3 probe_accuracy_test_suite.py
add --force_dock to force probe docking between tests to check docking issues
add --export_csv to export data as csv

They will installed by installtion script above. If they are not installed - they can be installed like this manually.

pip3 install -r requirements.txt

Need klicky macros properly configured, so that homing/leveling/probe accuracy gcodes will pick up the probe safely.
There was an issue that prevented running PROBE_ACCURACY near the front of the bed in klicky-macros.cfg. This was fixed on 2022/05/30. Please update your config file if you see this error msg: Must perform PROBE_ACCURACY with the probe above the BED!" .

All graphs and data are saved to /home/pi/probe_accuracy_tests/output. Enable csv export with --export-csv flag.

Plots:

Terminal:

mjoconr/probe_accuracy_tests