Hello, Instead of using Jd, I used some of the .stl files from "Poppy". I found them to be light and strong. I installed regular servos in place of the Dynamixel servos normally used. I only moved the arms and shoulders and I also had 2 waist servos. It kind of worked but I found the servos to be weak. The spine was not real rigid, but it could hold itself up. (Waist, shoulders, arms and neck) The whole assembly really needed a lot of torque. I don't think you could ever make the whole thing really stand or walk.

Poppy was made for poses, not real standing and movement. I may go back to it to see if I can do more with arm and torso movement someday. Maybe legs too.

If you want the servo conversion tray info and on how I made the pivots let me know. I will dig around and see if I can locate pictures and .stl files

Ron R

@Everyone... Guys, seromo is just a kid remember.... albeit a really smart kid You should tailor your responses accordingly...

@seromo,

The key to JD and EZ robots in general, is the ability to modify and try things. You have an idea which should be tried. My advice is to realize that JD has a certain amount of power in the servos. Also his balance is maintained by big feet.

I think you should build his legs first but consider his feet may need to have light weight shoes to help maintain balance. You could remove the arms for now and use those servos for tests. later you may need arms to help maintain balance.

The Auto Position panel can give you the ability to set movement. Making small movements at a time will allow you to see if he can walk the way you want.

Try making it work and post your progress.

Ron R

Just a thought, if you have the ez bit blocks, you may need to try to widen Jd's hips to get a better stance.

But, Remember, a lot of additional weight is not good.