Gantry Excessive Vibration

Background

The 1300PL uses a helical rack and pinion drive for higher rigidity and accuracy, and therefore will often be louder than other drive systems or similar machines.

Reason

1. Y-Axis gantry belts are loose.

Tools

• Allen Key Set

Solution 1 - Inspect belt tension

1. Remove the motor belt cover over the servo motor pulley.
   
   

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2. Remove the belt covers from both sides of the gantry.
   
   

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3. Loosen the two mounting bolts holding the belt tensioner. Adjust the tensioner until the belt is tight
   enough to only deflect 0.125" (3 mm) when pressed with one finger.

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4. Tighten the tensioner mounting hardware and repeat for the other side of the gantry.

5. Loosen the mounting hardware for the servo motor.
   
   

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6. Slide the servo back in its mounting slots until the belt is taught. It should deflect about 1/16" (1.5 mm) when pressed with one finger.

7. Tighten all mounting hardware and re-install belt covers.