3D Printing

A couple of months ago I bought a Prusa Mk 3 3D printer kit, as it generally seems to be considered the best for under $1000. Took quite a while to put it together, as I was doing it in short spurts when I had some free time, and on two or three occasions I had to take parts of it apart when I realized I hadn’t assembled them correctly.

But I got it working over Christmas and it’s printing without many issues; the biggest one is that the filament sometimes gets caught on the spool where one layer has somehow become caught under another, and that’s screwed up a couple of prints so far.

My main advice for assembly would be to read the comments on the online instruction manual, because there’s a lot of information in there that’s useful to prevent you from doing things you shouldn’t.

I also managed to slightly crack one 3D-printed part by tightening a bolt just a little too much, but so far it’s not affected operation. It’s just the duct that directs cooling air from the fan onto the material near the print head, so a slight misalignment probably won’d do much.

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3D-printed rockets

Coming soon to a launch-pad near you:

https://www.businessinsider.com/relativity-space-3d-printed-rockets-mars-2018-10

SpaceX and others have been printing some parts for years, but it’s about time someone tried to print as many parts as possible. We’ll need that kind of tech once we get out into space.