Bresser T-Rex Instruction Manual page 34

③ Once the extruder and build plate stop moving, slide the Leveling Card
continuously back and forth between the nozzles and the build plate, while
simultaneously adjusting the knob just enough so that the card causes a
slight friction.
Touch the Next button and wait for the extruder to move to the second
position. Slide the card back and forth again and adjust the knob to create
the same amount of friction as the previous step.
Touch the Next button again and repeat the same leveling steps.
Touch the Next button. The nozzle will move to the center of the build plate.
Slide the card through to make sure there is a slight friction. Slowly adjust all
screws by the same amount if there is no friction or too much friction.
Touch the Finish button to complete the leveling process.
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Start the adjustment process
with the right nozzle, then
use the distance between it
right right nozzle an build
plates as a reference.
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