Thanks! Indeed, Shapeways made the rotors from Neil Bickford's stl, modulo my scaling. --rwg On Sun, Mar 9, 2014 at 2:16 PM, Michael Greenwald <mbgreen@seas.upenn.edu>wrote:
So is this an application for a 3-d printer? [For a non-motorized version: The film of the figure rolling back and forth on the table was really great!]
On 2014-03-08 03:51, Bill Gosper wrote:
Alan Adler (gosper.org/alan.JPG . "I'm not an inventor, I'm an engineer, dammit," ) is motorizing my Lissajous illusion for G4G11. Lo res (7MB): gosper.org/MVI_0200.mp4 Hi res (314MB): gosper.org/MVI_0200.MOV You can see it on the worktable in the JPG, upended with a pulley removed. Also note the (unrelated) Euler disc. --rwg Poor Leo: To Google translate trompe l'oeil from French to English, spell it the same but say "Tromp Leo". _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun