I wrote an Android app and an Arduino program to control the robot-arm, video here:
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I really like the way that you made use of the stock servo arms and avoided all of the hassles with screw in adapter plates or directly connecting printed parts to the servo shaft. That was a very elegant and practical approach.
thank you for the kind comment! I think the design was meant for people to use the arms like that so all credits still go to holgero for the elegant design!
Thank you for posting your make!
no problem! thank you for the great design and modification!