3D Printing

Tips For Designing Custom Parts With SLS 3D Printing

Dealing with thin walls is one of the most frustrating aspects of designing custom parts for 3D printing, in any material. When walls are designed too thin, your part will often be too fragile to even print, let alone safely removing any support structures that have been included.

If you are planning on using SLS, the engineers at Xometry recommend 0.028” (0.7mm) wall thickness on any part with over 0.040” (1mm). If your part design has walls that are any thinner than 0.020” (.5mm), this can cause problems, as they will often deviate and over-thicken due to excessive heat from the laser. As a rule of thumb, the larger your part is, the thicker the walls will need to be, but there is usually no need for a part to have walls over 0.200” (5.0mm).

In general, we recommend following similar wall design rules as you would use for injection molding in order to achieve more uniform and consistent results for your parts.

Tips For Designing Custom Parts With SLS 3D Printing