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7-DOF robot arm

OmArm One: Build a 3D Printed 7-DOF Robot Arm on Real Ball Bearings (Part 1)

31. August 202631. August 2026 by Omar Draidrya
OmArm One, a 6-joint printed arm with a parallel-jaw gripper, rendered from the CAD assembly

Build a 3D printed robot arm with 7 DOF on real ball bearings: 485 mm reach, 200 g payload, full BOM, 16 assembly animations and ESP32 web control.

Categories 3D Design & Print, Build Your Robot (Advanced), Manipulators (Arms), Microcontroller, Robotics Tags 3D printed robot arm, 3D Printing, 7-DOF robot arm, Autodesk Inventor, ball bearing robot joint, CAD tutorial, Denavit-Hartenberg, DIY Robotics, DS3240 servo, ESP32, ESP32 for robotics, OmArm One, OmArm Zero, PCA9685, robot arm, robot arm assembly guide, robot arm payload, robotic arm, ROBOTICS, ROS 2, servo calibration, servo motor, tutorial, URDF Leave a comment
Omar - OmArTronics
Omar
Mechatronics Engineer & Maker

Hey, I'm Omar. I'm a mechatronics engineer and researcher who likes building robots and Arduino projects from scratch. I share everything here so you can build your own.

Recent Posts

  • OmArm One: Build a 3D Printed 7-DOF Robot Arm on Real Ball Bearings (Part 1)
  • HC-SR04 Ultrasonic Distance Sensor with ESP32: How It Works, Wiring, and a Live Web Dashboard
  • Computer Vision Pick-and-Place: Your Robot Arm Finds, Grasps and Moves Objects (Part 4)
  • MoveIt 2 Tutorial: Motion Planning and Real Robot Control for a 6-DOF Arm
  • ROS 2 URDF Tutorial: Visualize and Simulate a Robot Arm in RViz and Gazebo

Recent Comments

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  5. bsmr on DIY 6-DOF Robotic Arm with Bluetooth Control: Complete Build Guide
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