Waves on the surface

Reason:

  1. Z axis rod guide do not work well with bearing, or Z axis lead screw do not work well with copper bolt;
  2. Wrong temperature measured by thermocouple.

Solution:

  1. Replace Z axis motor assembly;
  2. Replace thermocouple and thermocouple wire.

Doesn’t match object

Reason:

  1. X axis rod guide is not vertical to Y axis rod guide caused by shipping impact.

Solution:

  1. Adjust X Y axis rod guide.

Uneven/having small pits

Reason:

  1. Nozzle or driver gear clogged.

Solution:

  1. Clean the nozzle and driver gear.