Update: NASA 3D Printer for Space Passes First Tests
Made in Space deputy program manager Matthew Napoli examines a piece printed by the engineering test unit 3D printer, shown inside the Marshall Space Flight Center's Microgravity Science Glovebox. (Source: Marshall Space Flight Center)
Jim, I'd like to go up there, too. I've been dreaming about it since I was a little kid. Re microG 3D printing, since the properties of 3D printer materials must have certain characteristics to work--both in the machine and in terms of how they build an object with the right specs--it may not be possible to make them much differently, and/or it can take a long time to figure out how to do so. Same goes for the machine itself. Actually, this design process has proceeded in the opposite direction from the one you suggest: it began with sending 3D printers designed to work on Earth into micro-G environments and seeing what happened, then designing a prototype somewhat like them and continually tweaking it to work in space.
Understood. Experience teaches. The scenario I was considering was this: Astronauts in Gemini & early Apollo used to eat freeze-dried food; while later astronauts in Shuttle & Station missions enjoyed real food, such as broccoli with cheese sauce, whose natural "stickiness" kept food on a plate, keeping it from floating away.
Point being, the first-attempts always tend to start with extreme caution for prevention; then loosen as experience teaches.
IN the case of the FDM process for Zero-G, as your article eluded, the preliminary results are all very encouraging because the process seems to be working. As I eluded, I think it's a natural. But I understand your very logical explanation.
I only wish I had the chance to experience Space; I'm certain my perspective would change!
Jim, nothing works in zero-G (actually, micro-G on the ISS, a plant or an asteroid) like it does in full 1G on Earth. Fluids don't flow right, and mechanics are completely different since force isn't the same. There's just as much effort involved in this project as in any other for an item that has to work "up there" for astronauts. Same goes for robotics, BTW, like the Mars and Moon rovers.
Ann- I'm missing the challenge of this effort – it seems to me it would be a naturally incremental advancement to place any FDM apparatus into zero gravity. Consider even the lowest-end offering, such as the familiar MakerBOT. It is data-fed by a laptop, mechanically driven using direct geared servos (which are gravity agnostic) and thermally/chemically bonded between printed layers. The natural "stickiness" of each subsequently printed layer holds it naturally in "place" as it bonds and cools before the next subsequent layer is printed. The whole system seems naturally suited to adaptation into a zero-gravity environment. The one point that needs advancement could be the printed resolution. Where MakerBOT (and other FDM's) are typically .004", the more refined Objet LaserJet solids are 10x better, at about .0004". But that, too is a natural incremental advancement the FDM industry will pursue. Zero-Gravity seems like a freebie to me.
It's the first step to the StarTrek Replicator. (One Martini, extra dry, please).
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
Some next-generation bio-based materials are superior in performance to their petro-based counterparts, but also face some commercial challenges. This is especially true of certain biopolymers, adhesives, coatings, and advanced materials.
Cars and other vehicles, as well as electronics and medical devices, continue to lead the use cases for the new plastics products we've been seeing, as engineers design products for tougher environments.
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This month will mark the launch of the SpeedFoiler, a super-fast, ultra-lightweight foiling catamaran that can fly short distances over water faster than other foiling designs, in part because of its carbon composite materials.
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