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Recent content by jrn11

  1. jrn11

    TestResources Universal Testing Machine?

    We've been looking into getting a Universal Testing Machine, and found that a company called TestResources has them for half of the base price of an Instron. No one I know has ever worked with them, so I feel a bit uneasy about it. Has anyone here used one or heard about them? Especially...
  2. jrn11

    electropolish a plated plastic to improve surface finish?

    I spoke to an electropolishing professional, and I got the impression that the amount of material removed would be purely a function of the thickness of the metal layer, not the height of the asperities or the thickness of the underlying plastic. Therefore, plating then polishing would exactly...
  3. jrn11

    electropolish a plated plastic to improve surface finish?

    Thanks for the feedback. The parts are printed. I don't have a spec for the roughness yet, but we may even like to use it for molding optical components if possible. I am also just personally curious about this process (plating followed be electropolishing) even if it turns out not to make...
  4. jrn11

    electropolish a plated plastic to improve surface finish?

    I have some plastic parts with an inadequate surface roughness. My colleague had the idea to get them plated and then electropolished, to achieve a really smooth finish. Has anyone encountered such a plating-polishing process before? I've only found info on plating or polishing separately, and...

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