Print 3 of the pieces and either glue or use versions with holes to screw them together.
You should be able to print these parts flat and eliminate supports and if the part breaks with the hole/screw version you don't have to reprint the all parts just replace the broken piece.
the V2 ones just have a bit more chamfers added to the edges for a more finished look.
Update: V3 edges more refined. Fixed more defect in hole where connector goes on both sides
Update: V4 more contours/Styling added wire mgt top shield for femur. Use light setting on supports or it may be difficult to remove them from the wire mgt piece.
Update: V5 few more aesthetics / filet changes on the edges and corners
The author remixed this model.
Modular version of the femur