Enough clearance or space has to be foreseen between moveable parts that are printed together due to:
- need for removal of powder, resin or support
- printing tolerances
- friction between surfaces.
Please note that painting adds another +/- 0,2 mm to a surface. For gluing a distance of around +/- 0,2 mm should be foreseen between surfaces.
This table gives an overview of recommended clearances between moveable parts that are printed together per suitable material:
| Technology | Materials | Recommended clearance between parts moveable parts printed together |
| Selective Laser Sintering |
PA-AF, PA12 PP |
0.4 mm 0.5 - 0.6 mm |
| Multi Jet Fusion | PA12, TPU 90A-01 | 0.5 mm |
| Fused Deposition Modeling | ABS | 0.4 mm |
| PolyJet | Vero Multicolor | 0.5 |