Delamination refers to the failure of the printed parts, that is, the printed parts of the curing layer separated from each other. Delamination can occur in any type of 3D printer for different reasons. As shown in the figure:
Delamination can be caused by one or several of the following factors:
Model orientation, layout, and/or support issues
long pauses for printing
Resin tank aging
the FEP film is inelastic
The primary task of troubleshooting is to determine the basic cause. Refer to the following troubleshooting steps to find out and solve the problem of print failure. It involves identifying all possible causes, from the most likely to the least likely.
Step 1: examine the model
Use the NovaMaker software to check model orientation, layout, and/or support issues.
In the process of stripping, pull or slide operation may break and separate the layer gap.
The larger layer is less likely to be pulled out of the resin tank than the smaller one.If there is an area difference between layers, the larger layer may be separated from the smaller one.It is required to reduce the area difference between the maximum and minimum layers.
Some parts of the model are in the free suspension or are not adequately supported. In this case, you need to add support at this location.
Step 2: check for the pauses during the printing
Long pauses in the printing process will weaken the strength of the molecular bonds between the layers. Please check for the pauses.
Step 3: check the resin tank
Any debris, turbidity and/or damage in the resin tank will cause the laser to diffuse, which limits the printer's ability to fully cure the resin.
The resin can be filtered by the filter paper in the post-processing kit.
Please check if there is the turbidity in the resin of the tank .Excessive turbidity indicates it needs to replace the resin.
Please check if there is any dirt, dust and/or fingerprints on the lower side of the resin tank. In order to observe the best printing results, the clean resin tanks must be very transparent.
Tip：It is the essential for successful printing to keep the resin tank clean and in good condition.
Step 4: check the printer screen
Any contamination, dust, or debris on the surface of the print screen may obscure the light source and cause the printing failure. The exposed optical surfaces of the printers are most likely to be contaminated.
Step 5: check the platform
The loosening of the platform may result in the layering of the printed parts.
The method of loosening inspection is to hold the platform and shake it gently back and forth.