Description of Issue

This issue occurs when the edge or boundary of a carving starts to gradually (or even radically) shift in the side-to-side direction unexpectedly.

Possible Causes

Causes include: a loose Y belt tensioner, dust in the Y encoder, a Y belt missing teeth, or a loose encoder wheel on the Y encoder.  The situation can be revealed or made worse by high force operations like vector cuts with large bits.

Troubleshooting Steps

  1. Check tension on the Y-belt.  A loose belt can lead to skipping which may cause this error, especially on the Y axis.  Loosen the Y-belt tension bracket screw, re-tension the belt, and re-tighten the screw.  Also make sure that there is a star shaped lock washer under the head of the screw to lock the tension bracket in place.
  2. Next check and see if there is dust in the Y encoder that is causing it to lose track of position.  Check the Y encoder readings in the sensor check menu.  Turn the machine ON and navigate to the Configurations Menu from the CarveWright Main Menu by using the up/down arrows or pressing the “0” (Options) key on the keypad.  Navigate to, or select key “7”, Sensor Check.  Use the up/down arrows to find menu items titled Y Position.  Record the encoder readings for the far left and right positions as you move the Y truck.  The total Y travel should read between 15.5” and 16”.  Move it back and forth several times checking to see that the values at each side do not change.  Replace the motor pack if these readings do not match up.
  3. Check for missing teeth on the Y belt.
  4. If none of the above steps solves the issue consult with CarveWright Service.