9-Circle Bed Leveling Test

Typical 'paper testing' does not seem to be an efficient way to level beds, so I simply created 9 circles (30 mm in dia.& 0.2 mm in height) in a space of 130 mm x 130 mm, and it works fantastic. It prints out just one layer so it is very easy to see how good the first layer is.

You should do a quick paper test (yup, I know) then start printing the circles. Come back in around 17 minutes and see if the there is any gaps between lines or the lines are loose. Adjust the knobs accordingly.

If the lines are loose, you would like to bring the bed closer to the extruder; move the bed away if you can't distinguish the lines (they are squished together).