So I've read that LEGO and Pitsco developed the Tetrix robotics system together, and that the Tetrix system is 100% compatible with LEGO Mindstorms. I was wondering that since Mindstorms uses Technic pieces, could one then use Tetrix gears in LEGO Technic builds where the gear train might be too strained using standard LEGO gears? Has anyone done this? Thanks.

The Tetrix gears are attached by a small locking screw, so they aren't comparable with lego standard axles. If you are applying so much torque on a gear line that lego gears can't handle, then even if power could be driven through the Tetrix gears it would be impossible to drive or actuate anything that uses standard axles, unless the axle would be affixed to a Tetrix gear.