ZPrinter
®
150 / ZPrinter 250 User Manual
Troubleshooting the ZPrinter 150 / ZPrinter 250
74
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11/1/12
7.9 Part Quality Issues Bad Surface Finish
The problems behind bad surface finish on parts will be different depending on whether the rough surface
is in the vertical plane or the horizontal plane.
7.9.1 Bad Horizontal Surface Finish
Explanation:
A bad surface finish on
horizontal
surfaces is usually the result of debris buildup on the Spreader Roller.
The debris sticks to the Roller and prevents it from spreading a smooth, flat layer of powder. See the photo
below (color part shown to highlight the problem).
Solution
Clean the Spreader Roller. See
Section 6.5, ’Clean The Spreader Roller’.
7.9.2 Bad Vertical Surface Finish
Explanation:
A bad surface finish on
vertical
surfaces is usually the result of either or both of these:
•
A problem with the print head.
•
A motion problem with either the Fast Axis or the Slow Axis.