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Low leg design

A project log for K3lso Quadruped

K3lso is a quadruped robot similar to MIT mini cheetah and MIT Cheetah 3.

robin-frjdRobin Fröjd 12/31/2020 at 13:040 Comments

So for revision two on the lower legs I adding a smoother foot transition. The transition and the design itself is inspired by  BD Spot.

My first design was a bit to long. So next version is 275mm foot included. This also saves a bit of torque. 

When adjusting the size to ~ 275mm the Strength analysis also looks much better.

First prototype of the legs is all milled in ALU 7075. For second revison I might go down milling in CF. lets see.

Size comparison:

Strength analysis:

Foot design:

The section view of the foot (not ready yet). It wraps around the low leg and are molded with rubber 60A. We shall see what hardness I end up with. 

Design check:

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