Hi Mark:
Glad to hear your having fun...
Take care of the friction and pressure angle elements involved. You wouldnt be the first to
assume that Gearotics simulation of a large number of gears in a train would
be easy to rotate.

, I once made one of about 6 ellipticals, but when the pressure
angles at the high end add together the power to rotate is very high.
The pressure angle effect in ellipticals are not only additive, but ratio'ed so
that if a high pressure angle at a particular rotational position produces a
drag that takes higher torque to turn it, that torque requirment is amplified
by the ratio's all the way back to the powered gear. Not too bad in smaller
elleiptical coefficients, but highly elliptical gears can take alot of toque to
turn in a train.
(Just figured Id mention that just in case you get too many ellipticals
in a line.

, I dont imagine you want to have to use an 8 cylinder engine to
drive them. )
Art