From Arduino prototypes to ROS 2 control and industrial PLC integration. Hands-on tutorials, hardware comparisons based on manufacturer documentation, and buying guidance for engineers, makers, and students in the USA and Canada.
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Six practical tutorials that anchor this site — design and wire a robot arm with Arduino, control it with ROS 2, and integrate it into an industrial PLC workflow.
How to read this site: Robotics Engineering Lab is an independent editorial project about 6-DOF robot arms. Arduino, wiring and kinematics pages include worked examples and code you can reproduce. Pages about FANUC, ABB, KUKA, Universal Robots and similar industrial hardware are specification-based buying notes, not lab tests — we do not have those machines on a bench, and those articles say so at the top.
Numbers come from manufacturer documentation, standards bodies (ANSI, CSA, ISO) or a calculation shown on the page. If a figure is wrong or outdated, send a correction.
Design, wire, and program a six-degree-of-freedom robot arm using an Arduino Mega, a PCA9685 servo driver, and inverse kinematics.
Configure ros2_control hardware interfaces and controller managers to drive a real or simulated robot arm from ROS 2.
Bridge PLCs and robot arms with Structured Text programming, PROFINET communication basics, and industrial safety circuits.
Size the arm, choose a cobot or a fenced industrial robot with a decision matrix, plan part presentation and the machine handshake, and read the quotation.
Size a seventh axis by carriage moment, travel, speed, drive type, foundation and controls — with a manufacturer comparison from published data.
Run a real ROS 2 node on an ESP32 through the XRCE-DDS agent, with wiring, agent setup, commissioning checkpoints, and message-rate budgets.
A symptom-to-cause method that separates electrical, software, mechanical and safety faults, with test points, pass criteria and escalation rules.
Walk the supply path, 24 VDC budget, SCCR, wiring practice and safety circuit of a robot cell under NFPA 79 and IEC 60204-1, with worked calculations.
Scope contact scenarios, map clamp points, measure force and pressure by body region, and document a PFL validation under ISO 10218-2:2025.
Size stepper joints by gravity torque, torque-speed curves, reflected inertia, microstepping limits, driver current and the closed-loop decision.
Compare as-is, dealer-refurbished and OEM routes, verify the arm-controller pairing, mastering, licences and hours, then re-deploy it compliantly.
A commissioning method for robot-camera calibration: pose sets with real rotation diversity, OpenCV AX=XB solvers, residual checks and a touch test.
Configure an RT-PREEMPT Linux master, CiA 402 CSP mode, Distributed Clocks synchronization, and multi-axis servo drive wiring for 6-DOF arms.
Step-by-step least-squares sphere fitting math, 6-point orientation alignment, residual error diagnostics, and ISO 9283 verification.
Size pinwheel speed reducers by shock load factors, lost motion hysteresis, torsional stiffness, and cross-roller bearing life in robot joints.
Compare safety architecture, payload, cycle speed, guarding cost and programming, then score the decision matrix for your application.
Budget stall current, inrush and brownout, then wire and commission a DC supply with worked examples and checkpoints.
Compare AR4, Dobot, Niryo Ned2 and UFACTORY xArm by budget, payload, ROS support and classroom safety in a constraint-based guide.
A sample of guides across topics — from inverse kinematics theory to industrial safety compliance and hardware comparisons.
Analytical solutions, Euler angles, and worked Arduino and ROS 2 code examples for solving 6-DOF inverse kinematics.
Payload, reach and integration notes transcribed from FANUC documentation — not a hands-on product test.
ANSI/RIA R15.06, CSA Z434, light curtains, and risk assessments explained for North American deployments.
Add workpiece, gripper and dynamic factor in the browser before you trust a catalogue payload number.
A practical framework for estimating payback period and total cost of ownership before buying a robot arm.
Jaw geometry, actuation methods, and material choices for designing a reliable robot arm gripper.
Every guide published so far, grouped into eight practical categories so you can jump straight to what you need.
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