3D printing

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My buddy Rex bought a 3D printer a few months ago. He did his research. Yeah, that's a picture of what he printed. It's called a "valve tree."

First of all, there's feedstock. Some high-end companies can do 3D printing with metal, but for the consumer that isn't a viable option (yet - give it time). Instead home 3D printers use plastic, and that comes in two basic types - ABS and PLA. (For the scientific minds out there, ABS = acrylonitrile butadiene styrene and PLA = polylactic acid, made from corn starch.) Basically ABS is a stronger plastic that can withstand higher temperatures than PLA. However, Rex is a clever guy and he got a printer that can use either plastic as a feedstock.

Here's his complete post!

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