It’s very quick and to the point. I will make a better one soon. It works! The only drawback is there is a little, just a little bit of jitter caused by not having any dampening on the shoulder, but I think it’s workable. It’s the largest arm I’ve ever made, at 8.0" between axis. It looks promising!
great to see my idea in other application. looks great. have you added a force sensor to the end or is that just bouncing?
the new dampener looks good.
Looks great Jim!
What’s the lifting capacity?
I’m curious, how does the dampening part look like? 
I was wondering the exact same thing. I tried squinting my eyes while looking at the video, but I was not able to extract any info regarding the new part. 
Hi Guys,
The original post says there is a little jitter because there is NO dampening. This is because I haven’t found an easy way to add it. I will see if I can add some close up images so you can see what I’m up to. 
This is really cool. I think I’m going to use this design.
That is a very sexy arm, I like how you used the rod design.
Now if only i can get such precision work with micro servos.
Very nicely done.
Are you going to use low profile servos for the gripper and wrist rotation? (if you intend to even add those)
Hi all and thanks for the comments. I must first apologize for not giving the proper credit on the late in the day original post. This new arm design is showing great promise. It wouldn’t have been possible without Jonny’s indirect drive leg design he showed us a few months back.
On the payload. My original video used only 4-40 threaded rod for the pushrods. While the servos had plenty of umph, the push part of the push / pull went el-bendo as soon as I attempted to lift 16 ounces. I have reinforced the 4-40 threaded rod with aluminum tubing. Honestly I haven’t had time to test payload again yet, but when I do I will post the results here. I think it’s going to impress.
Here are some images. The first is a simple isometric view.
Here is the view from behind.
Here is the dual 5755 servo bracket left view.
Here it is from the right view.
The elbow view.
Finally the new gripper we are working on.
Now that you have seen what we have right now, let me explain the changes I am planning. The one flaw in this design is the one single bicep plate. I am adding a second plate that will be the same size only made from 1/16" material. The lower part will ride on a shoulder washer right on the elbow servos output horn. The upper part will have another shoulder washer that is in line with the elbow axis screw. There will be two holes along the center that will also be added to the 1/8" existing plate, to accept standoffs to bring it all together.
love it jim. the closes ups are great. those new parts look nice too.
that base bracket is really what i intend for the ID3H-r hexapod. tapped too. 
that new elbow part and spring will really help with payload.
those Ball Baring are a better too. nice idea with the rods.
i love it jim. well done.
ps thanks for the cred. but its all down to the great SES product. we are only limited by our imaginations.
Oh, I want one of these! What kind of servo(s) will this new gripper require?
8-Dale
It uses the Hitec HS-225MG Mighty Mini.This is the smallest / lightest servo I will use for a gripper. HS-81?.. Never again!
Awesome!
Its simply beautiful, I love the slim design. And the new gripper looks great too.
Good work on the closeups pics.
Btw, did you have more info/pics about the dampening part?
Wow!!! I love the design and the gripper!!!
Thanks for the nice words…
I have made no progress on the dampening part. I still need to do more testing because the spring may add the required tension, and I may not need to add dampening after all.
That’s the best looking gripper I have ever seen… well, thats the best looking ARM I have ever seen Lynxmotion come up with. Great job!
Durn. I was hoping it would be using a standard sized servo.
8-Dale
the next step:
adding the new 5755 arm to the T-Slot system “linear table assembly” 8)
Looks great Jim! Much easier to build, very stylish too.
Will the gripper have a fine enough resolution for light work? Have you done any testing on it yet? Looks like the teeth on it are quite large.
I like the thick foam on the gripper as well. It’ll add life to the gripper servo over long periods of usage in a classroom.
Will Santa be able to leave one under the tree for me? Let me know, I’ll give the link to order me one!
The new gripper design and testing is going well. I’m not sure what you mean by resolution and the size of the teeth. It’s very similar to the older HS-85 micro servo gripper, except it’s using a mini servo instead. The 225 is much stronger then the HS-85. We are going as fast as possible with these new designs. I will let you know when I have something for you to play with. Ho ho ho!!!
Wow, thats a beautiful Arm! What are you using for a power supply, esp. the big shoulder servos… 6 volts? at how many amps?