Mk 3 is an Original Design 8 DOF Biped "Chicken" Walker using tensioned parallel bar legs.
All parts Easily Printable without supports
8x Tower microservos, 2 for each ankle and hip, knee actuated by long lever dually by hip and ankle.
The majority of the weight is supported by a plain rubber band tensioned across the back of the "knees", its just enough force that the servos can both lift the bot, and still lift the opposing foot.
Uses only standard "garage" hardware- M3 and M4 metric hardware, every Home Depot and Harbor freight has this stuff on hand..
Small Finish nails for Joint pivot points- any small nail with a matching drill bit would work.