Clearance design requirements
The clearance refers to the distance between the thin-wall or column of any two parts, as shown in the figure below:

In your design, the gap between two parts must be greater than the minimum gap requirement to be able to print correctly. The minimum gap requirements for different materials are as follows:
Material Science | 8000 resin | 8500 high toughness resin | Grey ABS | Transparent photosensitive resin | Grey fiberglass | Grey ABS |
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Clearance requirements | 2mm | 2mm | 2mm | 0.5mm | 1mm | 1mm |