I'd say technology can also increase the burden of skill. I.e. an average jigsaw and pencil line requires less skill and is safer than operating a CNC router, u

I'd say technology can also increase the burden of skill. I.e. an average jigsaw and pencil line requires less skill and is safer than operating a CNC router, until the router gets a ton of failsafes, sensors, etc implemented. the Anti-crash features probably cost more in a CNC than the rest of the machine does (and that is why mine doesn't have any except the minimum). You're right that quality matters. My take on this is designing for poor tolerances to still yield strong structures. This 3D printing approach looks good for some aspects, but the lack of a roof seems disqualifying for me. The roof is the hard part, and potentially the easiest part to do incorrectly/unsafely. I'm surprised they didn't just print in crenelations in the top edge to allow drop-in roof joists. a simple shed roof seems like it could have easily been integrated.