Changes to Step #4

Edit by Dave Ogles —

Edit approved by Grégoire Saunier

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[title] Belt tension
-[* 1] Move the X axis in the middle and shutdown the printer.
-[* 6] Tighten the belt until the belt start to be straight. Don't tighten too much, you should still be able to pinch the belt with very low force.
-[* 5] Unscrew the pulley set screws a little.
-[* 4] Adjust position of the pulley to have the belt centered. You can move the extruder to verify.
-[* 5] Tighten alternatively the set screws again.
-[* 7] Verify that the belt is not touching the ''x_end_motor'' and the X motor.
+[* 1] Move the X axis to the middle of the Z axis and shutdown the printer.
+[* 6] Tighten the belt until the belt is straight and doesn't sag. Don't tighten too much, you should still be able to pinch the belt with very little force force.
+[* 5] Loosen the two pulley set screws a little.
+[* 4] Adjust position of the pulley to have the belt centred. You can move the extruder by hand, to the left and right, to verify that the belt is centred.
+[* 5] Tighten the set screws alternately.
+[* 7] Verify that the belt is not touching the ''x_end_motor'' and that the drive pulley is not touching the X motor.