Design Guidelines: Selective Laser Sintering (SLS)

Our basic guidelines for selective laser sintering include important design considerations to help improve part manufacturability, enhance cosmetic appearance, and reduce overall production time.


Size

Maximum Dimensions

PA12 19 in. x 19 in. x 17 in.
PA11, PA12-GF, PA12-MF 10.6 in. x 12.6 in. x 16 in.
PA12 482mm x 482mm x 431mm
PA11, PA12-GF, PA12-MF 269mm x 304mm x 406mm

Accuracy

Layer Thickness 0.004 in.
Minimum Feature Size 0.030 in.
Layer Thickness 0.1016mm
Minimum Feature Size 0.762mm

For well-designed parts, tolerances of ±0.010 in. (0.25mm) plus ±0.0015 in./in. (0.0015mm/mm) for each additional inch can typically be achieved. Note that tolerances may change depending on part geometry.

an applications engineer evaluating SLS parts in nylon powder

Design Essentials for 3D Printing

The 3D Printing Essentials reference guide offers guidelines and key considerations when designing for industrial 3D printing processes.

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3D Printing Surface Finish Guide

Download this quick reference guide that looks at all of your surface finish options across our six additive manufacturing technologies.

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Materials

  • PA12 White (PA650)
  • PA11 Black (PA850)
  • PA12 40% Glass-filled (PA614-GS)
  • PA12 Mineral-filled (PA620-MF)
  • TPU-70A

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a 3D printing technician removes nylon powder from an SLS part
SLS part in nylon powder

Surface Finishes

STANDARD Bead blast to remove all powder, which leaves a consistent overall texture.
CUSTOM
Secondary options include a primer or dye color that can be applied as well as taps and inserts.
a 3D printing technician bead blasts a nylon SLS part

Equipment

Our SLS equipment includes sPro140 machines, which have the world’s largest sintering build volume, and feature fully digital high-speed scanning systems, unparalleled process consistency, and closed systems for powder blending and delivery for reliable part quality. We also use sPro60 machines, which allow for multiple materials and high throughput.


applications engineers discuss 3D printing CAD model

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