Parts that are to be assembled after printing, need to have sufficient distance (clearance) to adjoining surfaces.
This is necessary
- to enable the removal of powder, resin or support depending on the chosen technology
- to account for minor deviations caused by the 3D printing tolerances and
- to help with the friction between surfaces during the assembly
The following table shows an overview of recommended clearances for the most suitable materials:
|Technology||Materials||Recommended clearance for parts of an assembly|
|Laser Sintering||Alumide, Polyamide, Polypropylene||0.6 mm|
|Fused Deposition Modeling||ABS||0.3 mm|
|Stereolithography||Gray Resin, Mammoth Resin, Standard Resin, Transparent Resin||0.6 mm|
|PolyJet Printing||High-Detail Resin Multicolor+||0.6 mm|
For more information on threads for screw connections of parts, please consult the article: Adding screw threads to your 3D printed model.
Additional clearances for painting and gluing
- When surfaces are painted, please foresee an additional +/- 0,2 mm of clearance on each painted surface to account for the paint layer.
- When parts of an assembly are glued, foresee an additional +/- 0,2 mm of clearance between the surfaces to account for the glue connection.