¶ 1. Phenomenon Description
The model being printed has internal voids or holes.
¶ 2. Cause Analysis
- Model Inherent Defects
- Foreign Objects in Printing Screen, Resin Tank, and Build Platform
- No Screen Clearing Exposure Before Printing
- Printing Parameter Issues
- Print Screen Light Transmission Problem
¶ 3. Troubleshooting
- Provide STL and slicing, confirm if there are any defects in the model itself causing problems.
- Before printing, the print screen, resin vat, and build platform need to be cleaned thoroughly to ensure no foreign objects are present.
- Prior to printing, clear the screen exposure and clean any resin clumps in the resin vat before proceeding with the print.
- Increase delay exposure and decrease motor speed, it's possible that the resin hasn't flowed back into position due to the high speed, and is being pressed onto the build platform prematurely for printing.
- Check if the exposure during a blank model print is normal, whether the light transmission of the print screen weakens when printing in the middle of the model. If the light transmission is abnormal, it indicates a problem with the print screen, and the print screen needs to be replaced.