Maximum weight depends on configuration of springs. So as you can see in test video https://youtu.be/o4JGR529i1o it can support up to 0.5 kg. Maybe even more with some more powerful servos and additional springs, but I haven't tested it.
Thank you! It is 5v. I don't know exact current, but I use 10A power supply and it works really well.
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RS-LM 2014 Audi R18 E-Tron Quattro 3d printed RC car
Thank you! Perfomance depend on configuration of springs. In the video I use 3 springs in shoulder and 1 in elbow.
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Tertiarm - 3d Printed Robot Arm
Tertiarm - 3d printed robot armView Instructable »