Level Check Code
From Mike Beane's Blog
Desc
Performs a 9 point check on bed leveling.
Save as .gcode for printer and run.
Notes
- I have POS 1-5 saved as separate files on the SD card under POS\ for quick reference, as well as this master file for a full check.
- Used on an Ender 3
- I perform the test on a cold bed, if you are looking for a hot test, this is not for you
- Gap checking with index card (5 prints since testing with index card, all good. Prior paper yielded spaghetti).
- Cold bed, no expansion (! or ?)
- As always: YMMV
Code
; 9 Point Level Check - RB G28 ; Go to origin on all axis G90 ; POSITION 1 G1 Z4 G1 X32 Y36 G1 Z0 M0 ; POSITION 2 G1 Z4 G1 X32 Y206 G1 Z0 M0 ; POSITION 3 G1 Z4 G1 X202 Y206 G1 Z0 M0 ; POSITION 4 G1 Z4 G1 X202 Y36 G1 Z0 M0 ; POSITION 5 G1 Z4 G1 X117 Y121 G1 Z0 M0 ; POSITION 6 G1 Z4 G1 X32 Y121 G1 Z0 M0 ; POSITION 7 G1 Z4 G1 X117 Y206 G1 Z0 M0 ; POSITION 8 G1 Z4 G1 X202 Y121 G1 Z0 M0 ; POSITION 9 G1 Z4 G1 X117 Y36 G1 Z0 M0 G28 ; Go to origin on all axes ; Home G1 Z4 G1 X0 Y0 G1 Z0 ; Disable Motors M84