Multi-Material 3D Printing: 3D Print Me a Sandwich (Structure)

  • Multi-Material 3D Printing: 3D Print Me a Sandwich (Structure)

    updated 2 weeks, 4 days ago 1 Member · 1 Post
  • Anonymous

    April 20, 2021 at 8:20 AM

    There are these developments that we all feel are coming (YouTube, second nozzles, inexpensive desktop SLA) and there are those that are head-splitting-ly obvious when announced (Dirk van der Kooij’s mounting of an extrusion head on a robot arm). Things that are unexpectedly ingenious or impossible (LIFT). Things that are so obvious that they take a special kind of genius to make them real (Z Unlimited). Thanks to a recent paper from researchers at the University of Alberta, I’ve discovered a new category: things that are so obvious that they are dismissed and therefore underdeveloped.

    A paper by David Moises Baca Lopez and Rafiq Ahmad of the University of Alberta points to a way of making multiple material 3D prints very accessible indeed. By letting go of the idea of true functionally gradient parts, where every voxel can be determined and designed for effect, the team has a super simple way of letting us all experiment with multiple materials. They suggest simply extruding sandwiched structures of ABS, HIPS, and PLA to obtain different properties.

    The University of Alberta paper resulted in some interesting findings with PLA, ABS, and HIPS. They stated that, “In general, these three types of specimens

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