D.I.Y. Selective Laser Sintering

There is a  great Selective Laser Sintering (SLS) project being blogged at ReRap Builders by Peter Jansen.  Sintering is basically fusing powder by heating it just under the melting point.  SLS is 3D printing using a laser to selectivly heat the material.  It is done like most 3d printing, a thin layer at a time.  The nice thing about this method is that the surrounding powder supports the part as is is being built.

The current design is completely laser cut out of hardboard, even the gears.  The target price for a complete assembly is around $200.  The project is open source and design files are available on Thingaverse.

I recently had these nozzles made using SLS at Shapeways. The detail is amazing and while the part is only about 0.04 inch thick in most places, it is quite strong.

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2 Responses to “D.I.Y. Selective Laser Sintering”


  1. forex robot

    Wow this is a great resource.. I’m enjoying it.. good article

  2. Bart Libert

    I tried to sinter sand with my 80 Watt co2 laser built following info on buildlog. Initial results look really nice, I even think I used to big grains of sand and too much laser power.

    Movie at: https://www.youtube.com/watch?v=VN0lS5CSkmk

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