Rice University bioengineering researchers have modified a commercial-grade CO2 laser cutter to create OpenSLS, an open-source, selective laser sintering platform that can print intricate 3-D objects from powdered plastics and biomaterials. The system costs at least 40 times less than its commercial counterparts and allows researchers to work with their own specialized powdered materials.
The design specs and performance of Rice’s OpenSLS platform, an open-source device similar to commercially available selective laser sintering (SLS) platforms, are described in an open-access paper published in PLOS ONE. OpenSLS, which was built using low-cost, open-source microcontrollers, cost less than $10,000 to build; commercial SLS platforms typically start around $400,000 and can cost up to $1 million.
“SLS technology has been around for more than 20 years, and it’s one of the only technologies for 3-D printing that has the ability to form objects with dramatic overhangs and bifurcations,” said study co-author Jordan Miller, an assistant professor of bioengineering at Rice who specializes in using 3-D printing for tissue engineering and regenerative medicine. “SLS technology is perfect for creating some of the complex shapes we use in our work, like the vascular networks of the liver and other organs.”