If you have some sizing question, note that we started from the parts generated by the OpenScad file provided with the Unlimbited design : http://www.thingiverse.com/download:2860592. In this file, for the case of Matteo the following parameters are used:
LeftRight = "Right"; // [Left,Right]
// - Wrist Joint to Fingertip (mm)s
HandLen = 140; //[135:230]
// - Wrist Joint to Elbow Crease (mm)
ForearmLen = 180; //[120:290]
// - Bicep Circumference (mm)
BicepCircum = 160; //[196:350]
// - Cuff Support Length (mm)
CuffLength = 70; //[60:90]
// - Tension Pin Bolt Hole Diameter (mm)
PinHoleDia = 3; //[3:6]
There is a new version of the whippletree. It will be more compact and does not need the fork pivot to fix the main tendon.
Simply pass the main central tendon in the hole and block it with a big knot or a knot on a bead.
The other modification with this whippletree is that you can either pass the two pairs of tendons for fingers through the rounded holes, or either insert a PTFE tube (outside diameter 3mm) where the tendons will be able to slide very gently. (this is an idea of my colleague Pad :-) ) See the image that explains where to put the main tendon and the tubing.
To answer a recent request, you can now find a version of the hand without the "M" logo. The STL file is ready to print, at the original size, or you can use it to resize and add your own logo if you want (use any STL editor). The file is "hand_without_logo".
In addition I would like to highlight our new web site where you can find most of documentation we wrote about our various developments. There are the French and the English side, with different contents : you should have a look on both sides!