1. Check the LCD Screen Exposure
Remove the resin tank and the build plate, then place an A4 sheet of paper on the LCD screen. In the tool options, select Calibration and expose the logo image for 15 seconds. Confirm that the exposed image on the A4 paper is consistent with the image shown on the touch screen.
Safety note: Avoid looking directly at the exposed LCD screen to prevent UV light from harming your eyes.
2. Check the Build Plate Leveling
For non-auto-leveling models:
Remove the resin tank, clean the build plate, and lock it in place. Place a leveling card or A4 paper on the LCD screen, then click Print. Observe whether the gap between the LCD screen and the build plate is excessively large. If the gap is too large, re-level the build plate and set Z = 0 (if available on the model). Ensure the build plate is perfectly flat.
Video guidance: Leveling Guidance
For auto-leveling and tilt-release models:
Remove the resin tank, clean the build plate, and lock it in place. Place a leveling card or A4 paper on the LCD screen, then click Print. Skip any error pop-up windows that appear. Observe whether the X-axis returns to zero normally and whether the gap between the LCD screen and the build plate is excessively large. If the gap is too large, re-level the build plate and set Z = 0 (if available). Pay close attention to the flatness of the leveling.
3. Check the Printing Parameters
For ELEGOO official resin:
Print the test file “ROOK” from the USB flash drive to rule out slicing-related issues. If the adhesion failure persists with the official test file, increase the bottom layer exposure time to 60 seconds. If only the bottom layers or raft adhere properly, increase the normal layer exposure time accordingly.
For third-party resin:
Test with ELEGOO official resin first to confirm that the printer functions normally. Consult the third-party resin supplier for the printing parameters best suited to their material.
4. Check the Build Plate and Resin Tank
Build plate:
Inspect the build plate for any foreign substances, debris, or protruding metal burrs that may affect flatness. Clean the build plate with isopropyl alcohol and a scraper immediately after every print. Always check the surface carefully before starting a new print.
Resin tank:
Inspect the resin tank for any foreign substances. Clean the tank promptly after each printing failure. Regularly examine the release film for severe whitening, scratches, or damage that could affect print quality and adhesion.
5. Environmental Temperature
When the ambient temperature is below 20 °C, resin fluidity decreases, which adversely affects printing success and adhesion.
Recommended solutions: