This is the Mark II model made by PabloFerroDesign modified for print ability on a 140x140 Huxley.
I have also done lot's of changes here and there and a total redesign of the fingers.
Print and assemble.
You may need to change things a bit for your printer.
I have included the SketchUp file if you want to fix things up even more.
There are two versions of many parts because I had the idea to lighten the parts up a bit. But in reality I don't think you actually win much material on it.