I Built a Robot Arm with Industrial-Grade Performance

Visit PCBWay for CNC & 3D printing services (affiliate link): https://pcbway.com/g/q7jpuF Checkout Carvera Air from Makera: https://www.makera.com/products/carve... DIY 6-axis robot arm with under 10 μm repeatability — built with harmonic drives and NEMA17 closed-loop steppers. In this video I walk through the mechanical and electronics design, then measure payload and repeatability to see how it compares to commercial industrial robot arms. Most hobbyist robot arms use belts, cycloidal drives, or planetary gearboxes. I wanted to see what's possible when you put commercial harmonic drives into a compact DIY build — and the precision results surprised me 3D files and link to code: https://mevirtuoso.com/product/6-dof-... Follow me on Instagram:   / _promakina   Join the Discord Server:   / discord   Chapters: 00:00 - Intro 00:51 - Components Overview 01:04 - Harmonic Drive Reducers 01:33 - Electronic Components and Diagram 02:05 - CNC Machined Parts 03:41 - Assembly Overview 04:49 - Machining on the Carvera Air 07:19 - Software Overview: Pose Control 07:56 - Inverse Kinematics Solver 08:40 - Software Feature: Manual Jog 09:03 - Software Feature: Keyframe Playback 10:09 - Repeatability Testing 10:45 - Payload Calculation 11:27 - Payload Testing 13:14 - Results Overview 13:29 - Limitations: Homing 13:57 - Limitation: Interpolation 15:24 - Comparison with Industrial Robot 15:50 - The End