Update 12/24/2025: I uploaded the exported STLs for the hand and base since Prusaslicer was throwing an error with the generic 3mf.

This is a remix of the bones of the right hand and distal ulna and radius from “My Segmenter's” full skeleton on the NIH3D Print Exchange under CCBY license. I remeshed and solidified the model to fuse the bones to print as a single model. I created the base in Blender and cut the combined model in Bambu Slicer, adding connectors.

I printed this with 0.20 mm layers, 2 walls, 15% infill, tree supports at 30 degrees for the hand (2 top interface layers, top interface spacing = 0, top z distance = 0.20). I used Sunla matte PLA in bone white and Panchroma charcoal black. Be careful removing supports. I probably should have made the connectors a little bigger, but if you use a fast-drying glue it will set fast.

The model is life size and anatomically accurate since it is derived from a CT scan, although the original model was very low poly. This could be used as an anatomical reference or just as a cool Halloween decoration.

Bambu3mf on Makerworld.