Release film is loose
When the release film is installed, it is not fixed tightly or the printing time is too long, resulting in repeated mold removal and extrusion, forming indentations; it is recommended that the customer replace the release film with a new one and re-tighten it
There is residual solidified material in the trough
Mainly, during printing, the residual cured resin was not cleaned up in a timely manner, resulting in excessive squeezing of the release film by the secondary printing platform, and the residue punctured the release film;