Saturday, November 12, 2011

Continuously-Variable Automatic Transmission

This is phase two of my attempt to build a continuously-variable automatic transmission for use in gradually accelerating heavy objects to a very high speed without breaking motors and/or pieces. My first attempt was over a year ago ( which required an operator to manually adjust the torque output and had no variable gearing ratio. This new design, which uses two differential gear boxes, automatically switches the gear ratio between 1:1 and 1:6. Because the gear ratio is continuous, any ratio between 1:1 and 1:6 is possible, and acceleration between ratios is perfectly smooth. This prototype is fully functional, but still needs to be re-enforced and stabilized. I will post more as I continue work on it.


  1. Looks awesome, can you post more internal or blow up pictures?

  2. Hey man I've wanted to make one of these for a long time now, but I am having difficulties with it. I have seen all of your videos on YouTube but I can't figure out how to build any of them. Can you please help me?