How to design connecting and moving Parts for MJF?
Sometimes two printed parts need to fit together to make the final product. The gap between the interface areas of these parts should be at least 0.4 mm (with a tolerance of ±0.2 mm for each part) to make sure they fit together correctly.
As a general rule, there should be at least 0.7 mm of space and clearance between the faces of printed assemblies. For parts with walls that are at least 30 mm thick, there should be a bigger gap between each side to make sure they work rightIf the walls of the parts are less than 3 mm thick, the space between parts printed as assemblies can be as small as 0.3 mm. However, this depends on the design, and you may need to work with the manufacturer to make sure the parts work well.
- Gap between fitting parts: ≥ 0.4 mm
- Clearance for moving parts: ≥ 0.7 mm
Tip: Ensure 0.3–0.7 mm clearance depending on wall thickness.
