Using alternative RC parts for legs

Lynxmotion Legged Robots
1

I been looking at ways to make a foot for my hexapod.

In doing this iv been looking changing the tibia for something with more mounting locations.
here are some of the parts (servo trays)
iv got or have looked at:
something like this could allow the tibia to have an attachment to the bottom as well as give its style:
http://i531.photobucket.com/albums/dd355/innerbreed/XTR11402S.jpg

this one would allow a secondry servo to separatly control the foot and even give feedback, with plenty of mounting holes for foot:
http://i531.photobucket.com/albums/dd355/innerbreed/x10912s.jpg

and this one i have would also work:
http://i531.photobucket.com/albums/dd355/innerbreed/Capture-11.jpg

iv been thinking of using a helicopter swash plate for the foot, using springs and ball joints to support it.
looked at matt dentons idea for his terrain adaption hexapod but is there any more ideas?

2

I’ve put some thought into using a ball joint as the pivot for a foot and supporting it with springs. I have not sourced any parts or done any mock-ups with it at this time. The entire reason for working on it though is to make creating a quad or tripod gait less of a balancing act. Imagine making a biped walker where the entire control of leg to ground is a point contact… good luck with working that gait up. Same issue exists for tripod and quadrped designs unless you have dynamic gait routines just laying around. :wink:

3

What are you trying to accomplish with your new foot?

4

Hi Jonny,

I was looking into a small joystick for a foot. It could give feedback data as well as provide a ball joint. Too bad one couldn’t drive it a little as well!

Digikey part # 252A104B60NB-ND

Alan KM6VV
P.S. Your images aren’t coming through.