DIYRoboticArm
Robotic arm parts laid out on a workbench — servos, Arduino board, driver board and brackets
Parts & kits

Shop robotic arm parts & kits

Every component you need to build a robotic arm at home, grouped by what it does and picked to match our build guides. Tap through to check the live price on Amazon.

New to this? Read the complete robotic arm parts guide first — it explains what each component does and how to choose it.

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Robotic Arm Kits 🦾 Robotic Arm Kits The best robotic arm kits for adults, students and beginners — from STEM sets to 6-DOF programmable arms you can build in an afternoon. See All 12 → Arduino & Raspberry Pi Starter Kits 🧰 Arduino & Raspberry Pi Starter Kits Arduino UNO and Raspberry Pi 5 starter kits for learning the electronics and code behind a robotic arm before you build one. See All 7 → Arduino Robot Car Kits 🚗 Arduino Robot Car Kits Programmable Arduino and ESP32 robot car kits — line tracking, obstacle avoidance and app control — the natural next build after an arm. See All 3 → Servo Motors ⚙️ Servo Motors High-torque metal-gear servos — the muscles of a robotic arm. MG996R, MG90S and digital servos sized for each joint. See All 5 → Controllers & Servo Drivers 🎛️ Controllers & Servo Drivers PWM servo driver boards (PCA9685) and motion controllers that free your microcontroller pins and steady your servos. See All 5 → Microcontroller Boards 🧠 Microcontroller Boards The brains: Arduino Mega/Uno, ESP32 and compatible boards that run your robotic-arm code and read sensors. See All 6 → Stepper Motors 🔄 Stepper Motors NEMA 17 stepper motors for high-torque, high-repeatability robotic arms that hold position without feedback. See All 3 → Power & Voltage Regulators ⚡ Power & Voltage Regulators Buck converters and regulators that give your servos a clean, separate power rail — the #1 fix for jittery arms. See All 4 → Grippers & Claws 🤏 Grippers & Claws Ready-made mechanical claws and end effectors — the business end of the arm, with or without a servo. See All 4 → 3D Printer Filament 🧵 3D Printer Filament PLA and PLA+ filament for printing rigid robotic-arm frames, brackets and gripper parts at home. See All 4 → 3D Printers for Robot Parts 🖨️ 3D Printers for Robot Parts Beginner-friendly FDM 3D printers for printing robotic arm links, brackets and grippers — auto-levelling, direct-drive machines. See All 3 → Tools & Soldering 🛠️ Tools & Soldering Soldering irons and stations to make permanent, reliable connections once your arm leaves the breadboard. See All 3 → Sensors & Encoders 🎚️ Sensors & Encoders Rotary encoders and position sensors that give your arm feedback — the first step toward closed-loop control. See All 6 → Wiring & Breadboards 🔌 Wiring & Breadboards Jumper wires, Dupont cables and breadboards — the connective tissue for prototyping your arm’s electronics. See All 3 → Fasteners & Hardware 🔩 Fasteners & Hardware M2–M4 standoffs, screws and nuts to mount boards and assemble the frame without improvising. See All 5 → Mechanical Model Kits ⚙️ Mechanical Model Kits Wooden mechanical model kits that actually move — marble runs, pendulum clocks, music boxes and gear-driven vehicles from ROKR, Ugears and others. See All 37 →

Top picks

New to this? Start with our build-a-robotic-arm guide — it explains how these parts fit together before you buy.