![]() In any case, if you've ever wondered how to make resin shiny, read on. There's obviously a whole lot to be explored with 3D printing, but representing complex biological models to advance medical research is one of the more compelling applications. ![]() I've been excited to work with the researchers at UC Davis because I find this kind of 3D printing really compelling when it comes to showing off the kind of work that we're capable of producing with this new technology. While casting a resin part like this would be extremely difficult, and realistically speaking, virtually impossible, our Object 3D printers can produce a resin print like this a matter of hours. Tendons are modeled in white, while muscle tissue is represented in clear. The particular model featured in the photos in this Instructable is a horse's leg muscle that's been scanned and modeled to show how tendon attaches to the end of a horses muscle. There will be a much larger Instructable about the entire research project coming along soon. This Instructable focuses only on how to polish these kinds of models. A few of us at Instructables have been working with a lab at UC Davis to do some test prints of 3D models that they've been developing to better understand how and why race horses break their bones. When done correctly, well polished resin casts and parts look absolutely amazing, and are works of art, ready for display, jewelry and enjoyment in and of themselves.īefore I get too far into things, let me just tell you a little bit about the part that we'll be polishing. Then we move into two different grits of polishing compounds, and finally finish everything off at the buffing wheel using two very fine polishing abrasives, and finally, a carnuba wax polish to buff everything to a bright shine. The method first starts with some good old fashioned detail sanding working up through the grits, from very rough, to a very fine wet sanding. The same methods I will address in this how-to, apply to all cast resin polishing, and can be used to polish virtually any type of resin be it polyester or epoxy based. This Instructable will address how to polish resin to a high gloss, focusing specifically on how to polish a resin part made from a 3D printer. Polishing resin is a relatively simple process that just takes a little patience and effort.
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