mechArm pi 270, a 6-axis robotic arm based on the Raspberry Pi 4






A few months ago, Elephant Robotics released the myPalletizer, which was a 4 degrees of freedom (DOF) robotic arm built around the Raspberry Pi 4. The company just released a similar robotic arm that has 6 degrees of freedom, 270mm for robot workspace and it is also powered by the Raspberry Pi 4 for easy user interface.

It looks like the mechArm Pi 270 was originally featured on Indiegogo and Kickstarter. According to Elephant Robotics, the mechArm team has officially joined them.



mechArm Pi 270
(Click on the image to enlarge)

The payload of the mechArm 270 is approximately 250 grams, a positioning accuracy of ±1 mm and a travel speed of up to 120°/s. The robot design exposes all of the RP4’s I/O interfaces, including USB ports, HDMI ports, Ethernet port, and 40-pin header. For movement, the mechArm uses six high-precision magnetic encoder motors.


mechArm Pi 270 robot workspace
(Click on the image to enlarge)

Elephant Robotics developed the myCobot, which is also a 6-axis robotic arm, but has a different design. In addition, the mechArm 270 has a centrosymmetric structure, i.e. it has 2 joints to hold the robot. Another minor difference is the color available, the mechArm 270 is available in gray based on customer feedback.


mechArm Pi 270 robot workspace
(Click on the image to enlarge)

Like other Elephant Robotics products, the mechArm 270 supports ROS, OpenCV, myBlocky, and popular programming languages ​​such as C/C++ and Python. The company also provides a Gitbook for software and hardware documentation. The company’s GitHub can be found here, but the repo for the mechArm 270 doesn’t appear to be there yet as of publication date.

mechArm Pi 270 software supported
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Actuators already offered by Elephant Robotics are also compatible with the mechArm 270, for example, the adaptive gripper, the suction pump, etc. Refer to the demo below for more details.

More information

The mechArm is available for the same price as the myCobot which is around $799 on the Elephant Robotics website.

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