Direct Metal Laser Sintering  (DMLS) is an additive manufacturing technology that uses lasers to sinter (heat and fuse together) powdered metal together layer by layer to form a three dimensional part. Direct Metal Laser Sintering printers build parts from the bottom up by heating and fusing powdered metal using laser energy inside a controlled inert gas atmosphere. A part is designed using a 3D CAD system such as SolidWorks, AutoCAD Inventor, ProE, etc.  The native CAD file is exported to a STL file which is a rendered surface model used by 3D printing software.  The STL file is then processed through the printer software for part orientation, layer slicing, and support placement.  The file is sent to the printer and each layer (cross-section) is sintered with the laser energy. After each layer is sintered, a new layer of powdered metal is evenly dispersed over the bed and previous layer.  The next layer is then sintered to the preceding layer.  This process continues layer by layer until the part is complete.  When complete the parts are removed from the un-sintered powder and the un-sintered powder is recycled and reused in the machine.  Supports are then manually removed from the parts. Direct Metal Laser Sintering parts have excellent mechanical properties. Products manufactured using this technology have strength, hardness, and durability that is comparable to cast or forged parts in a comparable metal.  Metal parts with very complex geometries that would be expensive if not impossible to fabricate with traditional manufacturing methods are perfect for direct metal laser sintering.  Parts can be finished with a variety of operations to suit the design needs such as secondary machining operations, bead blasting, polishing, hardening, welding, etc.


  • Fast and accurate manufacturing of complex metal parts
  • Low volume production of end use parts without expensive tooling
  • High quality materials with excellent mechanical properties
  • Fine feature detail for very accurate parts


  • Consumer
  • Medical/Surgical/Dental
  • Aerospace
  • Industrial
  • Automotive
  • Tooling



  • Build Volume:  9.85 x 9.85 x 12.8 in (250 x 250 x 325 mm)
  • Accuracy:  0.0008 – 0.016 in
  • Layer Thickness (0.02 – 0.04 mm)
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Ken House General Manager, Ascent Inventioneering, LLC
I wanted you to know how much Avid 3D Printing's rapid prototype helped bring about a recent meeting with my customer.  When I told the client how good the 3D print looke, he was so excited, he drove 90 miles each way to see it immediately, instead of waiting for me to send it to him.  The face to face meeting went extremely well and he couldn’t stop touching the new prototype and comparing it to his current product example.  It really made my job of designing the rest of the project a lot easier.  Thank you so much for the fine work and the fast turn time