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Safety light curtain guide for robot cells in India
Specify a light curtain properly: device types, standards, the ISO 13855 distance formula with a worked example, muting rules, wiring and validation…
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Author: Jignesh Panchal
Jignesh Panchal is the founder of Jaadu Digital and author of Robotics Engineering, an India-focused robotics publication. The site uses AI-assisted research and drafting; educational guides and illustrative calculations are not claims of hands-on testing or machinery-safety certification.
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How to calculate industrial robot cycle time
Calculate a real cell cycle time: takt versus cycle, what brochure figures assume, a worked pick-and-place estimate and an acceptance test you…
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Servo jitter: power, signal and mechanical fixes
Stop servo jitter: separate the three different faults, size the supply for stall current, fix ESP32 timer conflicts and isolate the cause…
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Stepper motor losing steps: causes and fixes
Diagnose a stepper that skips steps: current setting, supply voltage, acceleration, pulse timing, resonance, wiring and calibration, in a sensible order.
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ROS 2 QoS tutorial: reliability, durability and depth
Why a ROS 2 topic stays silent: how reliability, durability, history and depth interact, which profiles to use, and how to diagnose…
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Control a robot from an Android app and ESP32
Build an Android controller for an ESP32 robot: transport choices, joystick mixing, the command watchdog and the Wi-Fi problems that break demos.
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Nav2 costmap tuning: footprint, inflation and layers
Tune ROS 2 Nav2 costmaps: footprint, inflation radius, cost scaling, observation sources and a symptom-to-parameter table that saves test runs.
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PLC ladder logic examples for robot cells
Learn ladder logic through worked examples: start-stop seal-in, latches, timers, counters, a robot handshake and the mistakes behind intermittent faults.
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Robot end effector types and how to choose one
Mechanical grippers, vacuum, magnetic, soft and process tools compared: how each grips, where each fails and how to choose for your part.
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ROS 2 sensor fusion: wheel odometry and IMU
Fuse wheel odometry and IMU in ROS 2: robot_localization config, covariances, the two-filter layout and the mistakes that make fusion worse.