knuckles

It is a *.3mf file that can be open in a slicer and modify its printing parameters.

I printed mine with Taulman Alloy 910. Second option is Polycarbonate and last is PLA. For Taulman and PC or similars, is a must to use over print bed a thick layer of Elmer´s glue all, or similar; proportion of 4 parts of glue and 1 of water, well diluted.

I recommend 4 perimeters and infill of 40% rectilinear. No support, no raft, no brim.

First print 4 layers height, stop the printing and fit the model to the hand. Then you may modify the scale until it fits well. This model fits well my hand and is a medium to big hand.