Over-engineered robotic scalp scratcher is aware of all of the strikes
August fifth, 2022—
These low-cost wire-arm head massagers are nice at giving your scalp a pleasant, enjoyable rub. However they’re handheld implements that drive the person to both manipulate the massager themselves or speak a companion into performing the duty. David McDaid determined that the expertise can be way more nice if a robotic took care of the arduous work, so he constructed this Stewart platform head massager.
A Stewart platform is a dexterous manipulator typically used with robotic finish effectors or for orienting tools. The usual setup requires six linear actuators, every with common joints on each ends. The actuators mount between two plates in an association that provides the highest plate six levels of freedom (DoF): pitch, roll, yaw, and linear motion in every of the three spatial axes. A Stewart platform is ideal for this utility, as a result of it lets the robotic transfer the top massager in a wide range of totally different ways in which mimic guide motion.
McDaid created his personal Stewart platform utilizing an Arduino Mega 2560 board and 6 AX-12A servo motors instead of the same old linear actuators. Using servos impacts the kinematics to some extent, however not sufficient for it to be a problem in an utility like this that doesn’t require a lot accuracy. McDaid designed his personal customized PCB for this venture, which is a defend for the Mega that simplifies the facility connection. That energy comes from a pastime LiPo battery pack with an XT60 connector. The mechanical elements, together with the servo arms, body, and massager mount, had been all designed in Fusion 360 after which 3D-printed.
The completed robotic head massager is ready to carry out many various motions, making certain whole rest with minimal bodily exertion.