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Re:Ghost Robotics' Minitaur Quadruped Conquers Stairs, Doors... by hugs on Tuesday September 20, 2016 @12:58AM (#12537170)
If you're looking for a good place to start, I highly recommend reading Ben Katz' blog and thesis:

Blog posts: "HobbyKing Cheetah" http://build-its-inprogress.blogspot.com/search/label/HobbyK...

Thesis: "Low Cost, High Performance Actuators for Dynamic Robots" https://drive.google.com/open?id=0B2x3Di8kVjT3N3BkQzhSQ3FwTU...

(Edit to note: Ben's design uses gears and thus is not direct drive, but his bot still has lots of power and software-controlled "springiness".)

Re:Ghost Robotics' Minitaur Quadruped Conquers Stairs, Doors... by intrepiddreamer on Wednesday September 21, 2016 @10:47PM (#12553969)
Thanks for the linkS!

Know of any other good beginner guides to get going on brushless dc motors for robotics?