Design Guidelines: Direct Metal Laser Sintering

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

We offer a range of secondary CNC machining services to further enhance your DMLS project finish.


Size

Maximum Dimensions

Normal Resolution 250mm x 250mm x 300mm
High Resolution 250mm x 250mm x 300mm
Fine Resolution 71mm x 71mm x 80mm (Ø100 x 80 mm)

 

applications engineers discuss 3D printing CAD model

Design Feedback
For additional questions, please contact an applications engineer at
customerservice@protolabs.co.uk or +44 (0) 1952 683047.


Accuracy

Layer Thickness

Normal Resolution 0.05 - 0.06mm
High Resolution 0.03mm - 0.04mm
Micro Resolution 0.02mm

 

Minimum Feature Size

Normal Resolution 1.0mm
High Resolution 1.0mm
Micro Resolution 0.5mm

 

Typically, for well-designed parts, with a designated build direction, tolerances of +/- 0.1 mm to +/- 0.2 mm + 0.005 mm/mm are expected and achieved

a bed of 3D printed metal parts

Materials

  • Aluminium
  • Maraging Steel
  • 316 Stainless Steel
  • Titanium

 

VIEW ALL MATERIALS >

a laser fuses metal powder together in layers to farm a final part

Surface Finishes

 

STANDARD Expect roughness values of 0.004 to 0.010mm Ra, depending on material and resolution.
CUSTOM
Secondary options include hand-polished or machined surfaces upon request. When tighter tolerances are required, we can provide secondary machining operations such as drilling, slotting, milling, and reaming.

a 3D printing technician removes metal supports on a DMLS part

Equipment

We use multiple 3D printing equipment for the production of metal components, which offer large build sizes, produce accurate parts, and provide quick turnaround times. Our EOS and Concept Laser 3D printing equipment can handle both reactive and non-reactive metal powder.

a row metal 3D printing machines for DMLS

Applications engineers discuss 3D printing CAD model

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