Recommendations – SLS

Before you send your design to us, please follow our recommendations.

Wall Thickness – The minimum wall thickness to ensure a successful 3D print varies between 0.6 mm (for PA12) up to 2.0 mm (for carbon filled polyamide).

Escape holes – To save weight (and

Designing for SLS printing sometimes costs) SLS parts are printed hollow. To remove unsintered powder after production escape holes must be included. Escape holes must be a minimum of 3.5 mm diameter.

Hole Size

All holes should be larger than 1.5 mm diameter.

Feature Size

– A minimum size of 0.8 mm is recommended.

Embossed and Engraved Details – To ensure small details are visible the following rules apply:

  • Minimum depth of engraving 1 mm
  • Minimum height of embossing 1 mm


Typical tolerances for SLS parts are ± 0.3 mm or ± 0.2 %, whichever is greater.

Text – To ensure readability of text the following rules, apply:

• Minimum font height of 2 mm (font size 14) suitable for every direction

• Sans serif font is recommended for readability

About addema

addema is a global supplier of components that are produced using additive manufacturing.

Our focus is to offer our customers service of utmost class. Don't hesitate to contact us regarding additive manufacturing.

addema AB
Hedenstorpsvägen 9
555 93 Jönköping 

+46 (0) 36 66 100