Mantis Clamp Vise

One of the key elements of the original Falcon Clamp not preserved in the [Mantis Clamp](https://www.printables.com/model/48505-mantis-clamp) is a compound planetary gearbox featuring fused sun gears. Indeed the very thing was a contrived application of this concept.

https://youtu.be/LYm1B4P_h8A

The two-layered planetary system of the "quick print" version was also only intended for calibration and demonstration. As you will find, the planet gears will twist under load and the clamping force will be quite limited. I've included a similar "demo" version here which is actually not too bad with the third layer of the stand providing some stabilization.

Three planetary layers allows this twisting force to be balanced out and more torque to be applied. Similarly, the integrated plane bearing surface provides additional stability.

While we're at it, lets add a 4'th layer with a gear ratio approximately half way between that of the two jaws to which we can mount a self-centering s