Why are 3D Prints Being Compressed or Have Incorrect Height?

1. What’s Wrong with My 3D Print?

Have you ever noticed that after your print has been completed, your model seems to have an incorrect height and looks compressed? Your model's height in the Z Axis seems to be different from its actual size in the slicer? This article will explain this abnormal phenomenon and how to address it.

2. What Makes Resin 3D Models Compressed?

Though the Z-height compression phenomenon is comparatively rare, we can find out there are three common reasons for it:

Z-calibration

• Z-calibration is done too tight 

Support settings

• Lifting Speed is too fast
• Rest Time is not sufficient 

Z-axis

• Bearing sleeve is clogged.
• Z-axis needs cleaning and lubricating

3. Troubleshooting Model Compression Issue

To address the compression issue, adjusting several settings, recalibrating your Z Axis, and cleaning the Z Axis are suggested. The following steps are organized in order of likelihood to identify and resolve the printing issue:

Adjusting the resin profile settings

• Increase Rest Time by 3s
• Decrease Lifting Speed to 40mm/min

Recalibrating the Z-axis

• Use 3 sheets of A4-sized paper for Z-calibration
• Use Z-offset function properly if it is available in your printer

Cleaning the Z-axis

• Dry clean the Z-rod
• Use proper lubricants to lubricate the Z-rod. Refer to the “Choosing the Right Lubricant for Your 3D Printer” section in this article for more information.

Contact Support

By following the above suggestions, you can improve the model compression issue. If you find any issues, feel free to reach out to Phrozen Support or your Authorized Reseller for further assistance. When contacting Phrozen Support, kindly send some photos or videos illustrating the issue.