I still say “Z” bend it! 
I don’t think they get it. Maybe we need to show 'em!
The pushrods should address the bell cranks (?) at a 90 degree angle, otherwise the cosine law will get 'ya.
Alan KM6VV
I get it, just not sure if it’s really necessary. The stainless steel threaded rod does not bend well, so we would have to resort to the more expensive scenario using wire and threaded end caps that can be soldered on.
Anybody addressed the programing required to operate the leg?
exactly.
i have already modified phoenix code and its ready to roll. 
I believe the MXL pulley jim has replaces the horn all together. Putting a second on the ball bairing hinge looks like they would line up nearly perfectly. May need to shim the servo out a slight bit(1/8" or so).
I also have a question for Jim. Could only half the ball bearing hinge be used. So the outside holds the ball bearings pushed against the tibia metal instead of the inside ball bearing race? That would definitely leave enough room for the MXL pulley.
No can do. The mating side of the bearing has the small 1/8" hole the keeps the screw centered. However I have already ordered a part that will fix everything. A hub to allow mounting the pulley to any SES part. It’s 1/8" thick so one or both of the servos would need to be shimmed to use the current bracket set.
Update, I haven’t had time to draw out and order the 4" femur yet. This forum is killing my productivity. I need to take a break from it to get some stuff done! 
No worries jim. give me more time to expand my Iron Wolf project.
working on some new ideas. one includes a 2dof foot possibly with in-direct toes, and also something for this hexapod project. a discussion hit on it a while back about combining locomotion and body Ik all in one. body moves dependent on locomotion direction.
Yeah, I’d like to see more “footwork”! They wouldn’t have to be powered joints, either. Some compliance could help a lot in walking. Bipeds take note!
Alan KM6VV
we could always make the room by adding spacer between the servo and the bracket. just an idea.
it has left plenty of room for the pullys to be added. you will have to confirm this before the build of cause.
http://i531.photobucket.com/albums/dd355/innerbreed/100_2204.jpg
http://i531.photobucket.com/albums/dd355/innerbreed/100_2205.jpg
the only problem i think is that it has made the whole system wider.!
Should have the pulley adapter parts April 26th. I should be able to ship you everything then. Should be able to provide pushrods AND pulley solutions. The pulley adapter version only needs maybe 1/4" at the most. So 1/8" on each side should work. We will see. Thanks for your patience!
great news. it will be interesting to see what works best. im quite excited.
let me know when you are ready and ill give you shipping address.
i will take pictures of each build and document them.
all the best jim.
thanks.
Here it is the 27th and no hubs… Hoping for tomorrow…
LOL.
im guessing you are getting annoyed now jim? im getting even more excited to see these new femurs.
i think the pully system will work best for what we want to achieve here.
I’m told today… 
We’ll see…
lol.
no worries.
fingers crossed for tomorrow.
reply to PM… thanks jim.
yes i believe that both options will have there own good and bad points. like you say the tension for the belts may become a pain and possibly also skipping teeth. on the other hand there will be plenty of extra movement and wont be so limited.
with the rods it will be a stronger assembly and will provide more accurate IK calculations but wont provide as much movement. but saying that i do think there would be enough to get some good gaits going.
it really depends on what kinda hex you wish it to be.
to start with i think i will build two legs using both assembles and provide pictures to this thead.
if i then build the whole thing “complete” with the pully system first then after a few tests and videos i could easily modifly it for the rods, along with another video and test results.
no worry’s on the delay, i understand these things.
you may have heard i have my repeat surgery on the 21st May but i should be ok to build. im typing and building now so it shouldn’t be a prob.
thanks again.
… another thing im thinking is that the belts being tensioned between the servo and the ball baring that it will be pulling on the ball baring from the side and my cause the two half’s that make up the baring to twist or wear more.
with the rods this wouldn’t happen.