I’m fiddling with different SES based 3DOF leg designs that allow more freedom of motion. Here is my first stab at it. It’s using the new 45° bracket prototypes. We should have stock in a weeks or so.
I take it you’ve tried these under power? I’m wondering if templeg5 could actually move out of this position, as there is no direct “lift” of the leg. Maybe I missed something.
Great to see the new 45 deg brackets! I got to have some of them to play with one time. Do they come in black too?
Alan got a point about templeg5. A better solution for templeg5 is to flip the tibia servo and use a shorter tube but there are still some limitations.
Using the 45 deg brackets on the tibia was interesting. Using the short C-bracket on a vertical femur servo has some limitations though.
One solution is to combine the two designs. Use the tibia from templeg1 onto the femur part on templeg5 and (optional) rebuild the coxa by mounting the femur servo into a 45 deg downward position.
But then again, the real challenge is to make a functional construction (much freedom) and make the design look good too.
Btw: The headline of this thread has a minor typo.
Yes that is the challenge. As far as the first two designs. Do you think either of them are close to workable? Or in other words which of the two tibia lengths would you prefer. I can make a 2" long one that might be a better solution, but I want to avoid it if possible. I will also try some of your ideas and post images here.
Ok over the weekend I made this. It’s basically the last design with the servo flipped over and a shorter tube installed. The range is not as nice as the Phoenix leg. But it’s much better than the old 3DOF leg design. What do you think of it?
Not sure if this is a problem though. I mean the Phoenix leg folds up the best of all designs. It walks the little guy just fine. Not sure what makes this different I guess.
Yeah, not saying it’s a problem either, although I’m wondering how it would function. This one looks like std. parts, long C bracket? I may have those already. If I get time, I can try the legs. I might be able to tell by mounting them on the “Creepy Hybrid” (only takes two legs).
Jonny’s leg could work, although it is more sprawled.
It looks like this coxa design could work very well. What I like with this coxa design vs the coxa i made for A-Pod is that the femur servo are attached to the coxa servo along its long side. (= more space inside the body).