The file 'Experimental Quadruped Robot With 3 Jointed Legs 3D Printer Model' is (stl,3dm) file type, size is 5.1MB.
This was the first version of a simple quadruped robot with 3 jointed legs. It is around 40cm high. It was designed for Power HD 1501MG Hi Torque Servos (17kg/cm), but note that the torque/weight means it cannot bound or run and they are underpowered for this application.
I think it needs almost double the torque in each joint. To walk, it had to move one leg very slowly forward at a time, while shifting weight (rotating the hips) on the other 3 legs. It sort of stumbled and shuffled then fell over.
The purpose was to experiment with mechanics of 4 legged walking using low price servos before I embark on a project with more expensive ones. It will never be able to carry the weight of a battery.
There is a new version with geared joints here:
http://www.thingiverse.com/thing:652121
It is still experimental but shows more promise.
anhle_tendon_pivot_x1.stl | 1.4KB | |
ankle_x2.stl | 87.5KB | |
bipedal_robot.3dm | 8.1MB | |
bracing_lower_x2.stl | 76.7KB | |
bracing_x1.stl | 4.4KB | |
CHASSIS_ADAPTOR.3dm | 114.7KB | |
CHASSIS_ADAPTOR.stl | 243.8KB | |
cross_bracing_x2.stl | 321.7KB | |
fibia_x2.stl | 786.2KB | |
foot_x1.stl | 148.1KB | |
HIP.stl | 2.6MB | |
joint_cap_x2.stl | 794.5KB | |
joint_cradle_x2.stl | 1.1MB | |
spacing_x2.stl | 30.2KB | |
tibia_x2.stl | 140.8KB |