Air bubbles in the LCD screen
Symptoms
When the LCD screen is on, there are air bubbles in the cooling board under the LCD screen.
Possible Causes
Residual air left in the coolant, and air bubbles
accumulate at the cooling board.
Diagnostic
Steps
Diagnosis: If there are many air bubbles stuck
to the cooling board, these bubbles will affect the uniformity of light and consequently the printing results. It is necessary to remove air bubbles.
Solutions:
Do not look directly at the screen with your naked eyes when the LCD screen is on, the ultraviolet light will damage your eyes
- Turn on the preheating function and perform a print without installing the build platform and resin tank, the preheating function will heat the coolant and increase the fluidity of the coolant. When
the print starts, the pump will turn on to circulate coolant, and the air
bubbles will be washed away by the coolant flow.
Reference article: How to enable preheating function of NBEE - If the problem persists, slightly and carefully tilt the printer to the left side of the machine when printing to let the air bubbles go out through the outlet of the cooling board.
- Drain the coolant and add it again.
Reference video: How to drain the coolant and add it again
When tilting the machine, two operators are needed to move it gently and carefully to ensure the safety of the machine
Conclusion
By following the above-mentioned diagnostic
steps, you should be able to troubleshoot the air bubbles issue, if the problem
persists, please contact support@uniz.com.
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