this is my second model. it should work on most printers, and the 3mf has all the settings you really need. the hands have little holes in them. the width of the hand holes is 6.00 millimeters, and the length is 5.41 millimeters.  as to why the length is not a whole number, idk I suppose its because I set the build plate to the bambu lab a1 minis dimensions. for any head cosmetics, width the head is 16 millimeters, with a length of 15 millimeters. anyone can remix this project, and do what ever they want with the thing. Enjoy!