Recently on Slashdot I read a thread about how 3-D printing — the technology of making an object layer by layer, as opposed to carving it out of a block of matter or forming it in a mold — is limited by the difficulty-of-use of 3-D design software. As threads on Slashdot do, it quickly became a forum for all kinds of venting and debate. One especially nerdy (and I mean that as a compliment) rebuttal explained a system for recreating sheet-metal parts in software, as a way of showing how “easy” it is to digitize a flat object like a gasket.

I suppose if I described exactly how to build my garage shelving out of 2x4s and plywood it would be even longer, but most people will read that post and be glad they have a hardware store to run to when their garden hose is dripping.

Tinkerers persist in society despite the vast system of production and shipping that we humans have created. This is of course usually seen as a blessing — where would we find innovation if not for such people — but the people doing this seeing are often faux-wistful columnists who would not at all be happy if they had to design their gaskets, or even their paper clips, from scratch. Continue reading →