Some of you may know about the Chronos Mount that uses Harmonic Drives.
Here is a video if you do not know what a Harmonic drive is.
http://www.youtube.com/watch?v=q1v7a0jsp1I
Here is an animation that is self explanatory 6MB
http://d1355990.i49.quadrahosting.co...ranimation.wmv
These harmonic drives have ZERO backlash!
Most if not all EQ mounts use gearboxes. My mount does not as it has belt drives to eliminate the gearbox. Image below. This has the effect of eliminating any micro jumps due to the gearbox.
I am seriously thinking of getting a dead or alive G11 or Titan and modifying it to incorporate these drives between the motors be they servo or stepper.
I forgot to say my EQ6 handles 90 lbs+ photographically as long as the wind is weak. See image two
Bert