On Tuesday 16 December 2003 23:47, Josh Singer wrote: > Is there a preferred alternative way to stay 2-d? The Plane2D joint, a special joint for 2D physics in ODE: http://www.mathematik.uni-bielefeld.de/~pserocka/ODE-Plane2D/ If all else fails: http://www.google.com/search?q=2d+joint+site:q12.org