Neil's Thing-o-matic is higher res and less drooly than George's Cupcake. E.g., http://www.youtube.com/watch?v=pvT5ySMnO8U, which Neil has been withholding for lack of editing. --rwg

On 8/14/2011 1:05 PM, Michael Kleber wrote:

...

...You need to be somewhat cautious of the plastic home 3D printers...

Yes, the inexpensive home-use 3D printers are limited in many ways, but there are still many cool things you can make with them. You can see a variety of mathematical objects I've made on my Makerbot here:

http://www.georgehart.com/rp/makerbot/makerbot.html

George http://momath.org/ http://georgehart.com/