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If you are experiencing poor adhesion with PEI, using a glue stick specifically designed for 3D printing may help improve adhesion. Many users have found success with regular washable glue sticks or those made specifically for 3D printing, such as the PVA-based glue sticks. Apply a thin and even layer of glue to the print surface before printing.
Additionally, you can try a few other troubleshooting steps to address the adhesion issue:
- Ensure that your print bed is clean and free from any residue or oils. Use isopropyl alcohol or a specialized print bed cleaner to clean the PEI surface.
- Adjust the first layer height and nozzle distance to ensure proper squish and adhesion. Make sure the nozzle is not too far away from the bed during the first layer.
- Increase the bed temperature slightly to improve the bonding between the filament and PEI. Experiment with slightly higher bed temperatures to find the optimal temperature for your specific filament material.
- Level your bed ...
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