A useless machine is a box that performs a useless task. They often turn themselves off when you try to turn them on, but they’re also completely useful for learning how to build and program them [pdf]. Here’s a great example: Jason Allemann vs the Ultimate LEGO Machine (LuuMa EV3). He notes:
All parts available in set 31313 LEGO Mindstorms EV3 (Amazon). Mindstorms project file, which contains the controlling program and additional information, can be found on my website.
We’ve shared one of Jason’s LEGO machines before. Then watch another Useless Box of Surprises.
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