If my 2D printers are any indication, not very much.<p>Most of the time when I now need a 2D item, I use a Web-based service and have it delivered. For example I use Web-based services to to print photo albums, greeting cards, business presentations, signs, etc. I do so because the resulting quality is better and cheaper.<p>I suspect if I ever wanted some 3D item printed, I would do the same.
Many things! There are all these designs floating around in my mind that I can't build easily because I don't have a 3d printer.<p>Adjustable camera mounts for my computer vision projects...a tablet mount to hold my tablet at a particular angle while I'm lying down and reading... better supports for my old arthritic dog...cat toys...waterproof cases for my embedded projects and sensors...chassis for small robotic vehicles...
Prints of juggling patterns pushed through space. Henry Segerman and I have designed and printed a few, and sometimes you can learn a surprising amount about something you thought you already knew.<p><a href="https://plus.google.com/+HenrySegerman/posts/FGZdWSM2qET" rel="nofollow">https://plus.google.com/+HenrySegerman/posts/FGZdWSM2qET</a><p><a href="http://www.shapeways.com/product/R8B97GHZN/3-club-cascade-motion?li=shop-results&optionId=41687643" rel="nofollow">http://www.shapeways.com/product/R8B97GHZN/3-club-cascade-mo...</a><p><a href="http://www.shapeways.com/product/3UEJKYME9/3-ball-cascade-motion" rel="nofollow">http://www.shapeways.com/product/3UEJKYME9/3-ball-cascade-mo...</a>
Probably bits and bobs for the wife's crafting projects (probably involve lots of rabbits) Custom cases for the odd bare electronic components I have. And some experiments in stylistic 3d designs.
I made a workshop about 3d printer so i can buy a new 3d printer. Then i just start my master plan[1].<p>[1]: like they said. It will make the better world :D