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Oct. 2025·Sole Designer & Builder·Treehouse Showcase

Pick-and-place Robot Arm

4-DOF SCARA-style arm with geared, belt, and lead-screw drives. SolidWorks, 3D printed, controlled in C++.

  • SolidWorks
  • C++
  • Stepper motors
  • 3D printing
Pick-and-place Robot Arm cover

I designed, printed, wired, and programmed this SCARA-style pick-and-place arm, then presented it at Treehouse / Socratica on Oct 8, 2025 to 100+ people.

The system includes a geared stepper base, two equal-length linked arms for planar reach (one belt-driven), a lead-screw Z-axis, and a mount for a future servo gripper. All parts were designed in SolidWorks and 3D printed.

Motion currently runs through hard-coded sequences controlling base rotation, vertical lift, and forearm extension. A counterweight improves stability. Next iterations add a functional gripper and inverse-kinematics control.

Videos

Gallery

Pick-and-place Robot Arm photo 1
Pick-and-place Robot Arm photo 2
Pick-and-place Robot Arm photo 3
Pick-and-place Robot Arm photo 4
Pick-and-place Robot Arm photo 5
Pick-and-place Robot Arm photo 6
Pick-and-place Robot Arm photo 7