Cool app. Works fine in 2K as well. According the program so far, our pythons aren't stable at any speed :) Mind you, I have to get the weight distribution, and I have no idea how to figure out the mass height for the front and rear, or how do decide where the "mass" is in relation to the pivot and the rear axle. > > >I actually got a nice compiled version of my program going this evening: > >http://rjs.org/Python/wxFrameGeometry.zip > > A screen cap of an apparently good, stable geometry. > > Ray ============================================================ This is the Python Mailinglist at freelists.org Listmaster: Juergen Mages jmages@xxxxxx ============================================================