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Changes to Step #3

Edit by Grégoire Saunier

Edit approved by Grégoire Saunier

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[title] Trapezoidal nuts adjustment
-[* 1] Turn off the printer.
+[* 1] Turn off the printer and center the extruder.
[* 2] If you have applied tension to the belt, unscrew the belt tensioner on ''x_end_idler'' until the belt is relaxed.
[* 7] Loosen the screws which secure the trapezoidal nuts. This is to ensure that the Trapezoidal nuts 'self-centre' on the lead screws.
[* 4] Make sure the trapezoidal nuts are moving freely.
[* 5] Alternate between all 4 screws evenly while tightening (alternate between both sides during the process). Don't apply any lateral force on the trapezoidal nuts.