I'm what you'd call an avid cyclist (don't actually use Avid parts though). Normally I ride at least once a week, although recently my back tire got screwed up (probably from too much riding) and I haven't been able to ride in quite a while. But when my bike can move, I ride through Chicago summers and winters, both equally enjoyable, which, for me, means extremely.

I don't want to be a dick but, I literally learned this from my sixth grade teacher. I'm not boosting up my own ego or anything, but I've known that for years, and laughed when I see parents practically bathing their children with hand sanitizer and making sure everyone who comes within 50 feet are as well. Just my 4 hay-pennies.

When someone else makes a copyrighted item using a 3D printer and sells it. That's what I meant, sorry.

I'm fine with water-marking authentics and passing laws banning you from making money off of 3-D printed designs that are already copyrighted, but banning certain materials? As soon as you try to ban materials, prevent people with good intentions from using them. Just as with [certain] weapon laws and drug laws, trying to ban things because people /can/ be malicious using them doesn't mean banning them is good. Don't even need to explain why, the two reasons have probably come up on every website out there at one point or another.