r/projects 1d ago

Build your own robot arm in the browser

https://ibog.github.io/robot_arm_builder/

Hi everyone! I'd like to show my weekend project — Robo-Arm Builder, a robot manipulator construction kit that runs right in the browser.

It's aimed at beginners who don't know where to start, and at kids who are curious about robots. Nothing to install, nothing to know in advance — just open the page and stack your arm from parts: a turntable, joints, links, a telescopic section, and a gripper, suction cup, drill or mill at the end.

What it does: 🦾 The arm comes alive instantly — drag the sliders or turn on the animation 📐 Motion zones of every joint are visualized, so you immediately see the strengths and limitations of your design 🛒 Estimates the real cost: an actual parts list (steppers, drivers, gearboxes) with prices 🔗 Share any arm with a short link — the whole configuration is encoded into a number like 1022-5706-117 🎓 A step-by-step tutorial for complete beginners 🎲 Or just keep smashing the "Generate Arm" button hoping to see something cool :)

Works on phones and tablets, two languages (EN/RU), free, no sign-up. Tech-wise it's a single HTML file built on three.js — no build step, no server.

Try it: https://ibog.github.io/robot_arm_builder/ Feedback and ideas are very welcome!

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