This is the RDA AMP (Amplified Mobility Platform) is a distant descendant of the first military exoskeletons used on Earth in the mid-21st century.
This model is fully articulated and can be printed as a kitcard or by using the raw files.
NOTE that the raw files includes only the left leg and the right arm, to have their opposite use the symetry tool from bambu studio
Below the building instructions
To build the arm you have to use pieces 8, 7, 9, 10 and 11 following this picture
To build the leg you have to use pieces 1, 2, 3, 4, 5A, 5B, 6, 14 and following this picture bellow
For the hips, use the pieces 12 and 13
Finally, mount the arms and the legs on the cockpit
I hope you enjoy it !