The second test of uArmⅠ

The second test of uArmⅠ, in this version we add 4 suckers on the chassis of the arm to  mount it on smooth surface.


We also make a new design of the head of the arm to combine the two install ways together in one head. See the design in the following pictures.
IMG_9963 IMG_9965

Here is the video of the second test.


  • Urill December 22, 2013 at 2:39 am


    What servos did you use?

    • ufactory December 22, 2013 at 10:23 am

      Hi Urill,

      The servos we use are MG995. They are cheap ones and we will use better ones in the future.

      • Urill December 24, 2013 at 2:24 pm

        Are you located in China? Your servos and motors look like the cheap ones from Taobao.

        • ufactory December 25, 2013 at 10:23 am

          Yes, we are in Shenzhen, China. The servos are cheap ones, so the precision are not well enough.

          • Urill December 25, 2013 at 3:45 pm

            Wow, your team is impressing! Is your team based in a university? Are you going to commercialize your products?

            When you release the design, I’ll probably upscale it and use the cheapo Faulhaber motor with closed loop control. It should get a lot better load capacity and precision than the MG995 servo.

            BTW how much did you pay for the MG995 servos? I once bought a 26块 one and was disappointed about its accuracy.

          • ufactory December 25, 2013 at 4:36 pm

            Hi Urill,

            We are a startup company located in Shenzhen. About this robot arm, we are going to launch a Kickstarter campaign on January next year and we will release the design after that.

            As you describe, the MG995 servos are cheap and the accuracy is too bad. We decide to use better one in the next version and we are also making a metal one with stepper.

            About the MG995, it is about 24 yuan in Taobao, quite cheap and works bad.

  • Marc D May 4, 2014 at 5:06 pm

    I could be a tool changer for a small CNC machine ….


Leave a Comment