https://lateai.com Latest LateAI build tutorials: robot arms, vision AI, 3D printing and free robotics courses. en Thu, 17 Sep 2026 05:07:34 -0000 https://lateai.com/en/tutorials/diy-faze4-arm/arm_traj_3d.html https://lateai.com/en/tutorials/diy-faze4-arm/arm_traj_3d.html Thu, 17 Sep 2026 05:06:10 -0000 A real 3D trajectory lab built from official STL parts of the Faze4 six-axis fully 3D-printed robot arm (with cycloidal-pinwheel gearboxes built into the joints) plus 6-axis inverse kinematics: draw sine, circle, and triangle end-effector paths live on a vertical plotting board, showing all 6 joint angles and the tracking error in real time. Includes URDF + MIT Drake code so you can validate the same joint angles in real dynamics. https://lateai.com/en/tutorials/diy-drake-arm/arm_traj_3d.html https://lateai.com/en/tutorials/diy-drake-arm/arm_traj_3d.html Thu, 17 Sep 2026 05:06:10 -0000 SmallRobotArm real 3D parts + an inverse-kinematics trajectory lab: draw sine, circle, and triangle end-effector paths live on a vertical plotting board, showing all 6 joint angles and the tracking error in real time, and generate reproducible offline numpy/Drake code. https://lateai.com/en/tutorials/diy-ar4-arm/arm_traj_3d.html https://lateai.com/en/tutorials/diy-ar4-arm/arm_traj_3d.html Thu, 17 Sep 2026 05:06:10 -0000 A real 3D trajectory lab built from official STL parts of the Annin AR4(MK5) plus 6-axis inverse kinematics: draw sine, circle, and triangle end-effector paths live on a vertical plotting board, showing all 6 joint angles and the tracking error in real time. Includes URDF + MIT Drake code so you can validate the same joint angles in real dynamics. https://lateai.com/en/tutorials/wooden-speaker.html https://lateai.com/en/tutorials/wooden-speaker.html Thu, 17 Sep 2026 05:06:09 -0000 A classic mix of woodworking and electronics: build a wooden enclosure, fit a Bluetooth amplifier module, drivers, and a battery, and you have a porta https://lateai.com/en/tutorials/traffic-signal-classification.html https://lateai.com/en/tutorials/traffic-signal-classification.html Thu, 17 Sep 2026 05:06:09 -0000 Train a CNN to recognise the colour of traffic lights (red, yellow, green), which can serve as the perception stage of a self-driving system. https://lateai.com/en/tutorials/thrust-stand.html https://lateai.com/en/tutorials/thrust-stand.html Thu, 17 Sep 2026 05:06:09 -0000 Testing thrust before you build is an old rule in RC and drone work. This project builds a bench thrust stand around a load cell and an Arduino: bolt https://lateai.com/en/tutorials/text-detection.html https://lateai.com/en/tutorials/text-detection.html Thu, 17 Sep 2026 05:06:09 -0000 Use OpenCV's built-in EAST text detector to box the text regions in a frame in real time. EAST is an efficient deep-learning text detection model inte https://lateai.com/en/tutorials/snowmobile.html https://lateai.com/en/tutorials/snowmobile.html Thu, 17 Sep 2026 05:06:09 -0000 A 3D-printed snowmobile that can carry a person (or at least cargo): the chassis is entirely printed, the rear section uses printed parts to build a t https://lateai.com/en/tutorials/smd-organizer.html https://lateai.com/en/tutorials/smd-organizer.html Thu, 17 Sep 2026 05:06:09 -0000 SMD resistors and capacitors are small enough to turn into a tangled mess. This project stores them in test tubes: a laser-cut wooden frame around 3D- https://lateai.com/en/tutorials/self-driving-rpi.html https://lateai.com/en/tutorials/self-driving-rpi.html Thu, 17 Sep 2026 05:06:09 -0000 Build a self-driving prototype with a Raspberry Pi and a camera: the camera sees the road and the lane lines, image processing computes a steering ang https://lateai.com/en/tutorials/pov-display.html https://lateai.com/en/tutorials/pov-display.html Thu, 17 Sep 2026 05:06:09 -0000 Using persistence of vision, a single fast-spinning LED bar can write text and patterns in mid-air: a motor spins the LED array and the Arduino lights https://lateai.com/en/tutorials/pose-estimation.html https://lateai.com/en/tutorials/pose-estimation.html Thu, 17 Sep 2026 05:06:09 -0000 Pose estimation detects 33 body keypoints in real time (head, shoulders, elbows, wrists, hips, knees, ankles, and so on) and draws the skeleton on the https://lateai.com/en/tutorials/pcb-troubleshoot.html https://lateai.com/en/tutorials/pcb-troubleshoot.html Thu, 17 Sep 2026 05:06:09 -0000 A freshly fabbed PCB that refuses to work when you power it up is a moment every electronics hobbyist knows. This guide lays out a systematic troubles https://lateai.com/en/tutorials/parking-space-counter.html https://lateai.com/en/tutorials/parking-space-counter.html Thu, 17 Sep 2026 05:06:09 -0000 Analyse a car park's surveillance video in real time: pre-mark each parking bay, check frame by frame whether a car occupies it, and report the number https://lateai.com/en/tutorials/omr.html https://lateai.com/en/tutorials/omr.html Thu, 17 Sep 2026 05:06:09 -0000 Photograph a paper answer sheet and it automatically reads the options the student filled in and scores the result: locate the sheet, correct the pers https://lateai.com/en/tutorials/object-following-arduino.html https://lateai.com/en/tutorials/object-following-arduino.html Thu, 17 Sep 2026 05:06:09 -0000 A car that locks onto a target: the camera spots an object of a specific colour (a red ball, say), works out where it is in the frame, and the Arduino https://lateai.com/en/tutorials/object-detection-yolo.html https://lateai.com/en/tutorials/object-detection-yolo.html Thu, 17 Sep 2026 05:06:09 -0000 Use YOLO (You Only Look Once) to recognise object classes and positions in real time; OpenCV's tutorial uses YOLOv3, which detects the 80 common COCO https://lateai.com/en/tutorials/moving-lamp.html https://lateai.com/en/tutorials/moving-lamp.html Thu, 17 Sep 2026 05:06:09 -0000 A robot desk lamp that does what you tell it: two servos form a two-link arm with the lamp on top, a phone app sends commands over Bluetooth, and the https://lateai.com/en/tutorials/mobilenet-ssd.html https://lateai.com/en/tutorials/mobilenet-ssd.html Thu, 17 Sep 2026 05:06:09 -0000 Do lightweight object detection with the MobileNet SSD model: MobileNet extracts features, SSD handles localisation, and the combined model is small ( https://lateai.com/en/tutorials/maker-badge.html https://lateai.com/en/tutorials/maker-badge.html Thu, 17 Sep 2026 05:06:09 -0000 Solder yourself a glowing maker badge: 100 LEDs laid out on a badge-shaped PCB that lights up as soon as you connect the battery. The author also sell https://lateai.com/en/tutorials/line-follower.html https://lateai.com/en/tutorials/line-follower.html Thu, 17 Sep 2026 05:06:09 -0000 A line-following robot designed for absolute beginners: an Arduino, a motor driver, and a pair of line sensors on a bought-in chassis. The sensors wat https://lateai.com/en/tutorials/led-polarity.html https://lateai.com/en/tutorials/led-polarity.html Thu, 17 Sep 2026 05:06:09 -0000 An LED only conducts one way, so a reversed LED simply will not light. This tutorial collects five practical ways to find an LED's polarity - from pla https://lateai.com/en/tutorials/hc-sr04-reader.html https://lateai.com/en/tutorials/hc-sr04-reader.html Thu, 17 Sep 2026 05:06:09 -0000 The HC-SR04 ultrasonic module does not handle its own timing - the host microcontroller has to babysit every pulse measurement, which eats a lot of ti https://lateai.com/en/tutorials/hand-tracking.html https://lateai.com/en/tutorials/hand-tracking.html Thu, 17 Sep 2026 05:06:09 -0000 Hand tracking is the classic entry point into CV Zone: a camera detects hands in real time and locates the 21 hand landmarks (fingertips, knuckles, wr https://lateai.com/en/tutorials/gesture-volume-control.html https://lateai.com/en/tutorials/gesture-volume-control.html Thu, 17 Sep 2026 05:06:09 -0000 Pinch in front of the camera: the distance between your thumb and index finger controls the computer's volume in real time. https://lateai.com/en/tutorials/finger-counter.html https://lateai.com/en/tutorials/finger-counter.html Thu, 17 Sep 2026 05:06:09 -0000 Count in real time how many fingers are held up in front of the camera and show the number on screen. https://lateai.com/en/tutorials/face-recognition-db.html https://lateai.com/en/tutorials/face-recognition-db.html Thu, 17 Sep 2026 05:06:09 -0000 Take real-time face recognition a step further and wire it to a database: member details (name, photo, face encoding) live in a database with online c https://lateai.com/en/tutorials/face-detection-60fps.html https://lateai.com/en/tutorials/face-detection-60fps.html Thu, 17 Sep 2026 05:06:09 -0000 Face detection with OpenCV's built-in Haar cascade classifier runs at roughly 60 frames per second on an ordinary laptop. https://lateai.com/en/tutorials/face-attendance.html https://lateai.com/en/tutorials/face-attendance.html Thu, 17 Sep 2026 05:06:09 -0000 Point a camera at a face and it clocks you in automatically: enroll each person's facial features first, then every time that face appears it logs the https://lateai.com/en/tutorials/electric-longboard.html https://lateai.com/en/tutorials/electric-longboard.html Thu, 17 Sep 2026 05:06:09 -0000 Build an electric longboard for about $150: a brushless motor drives the rear wheel through a belt, a lithium battery supplies the power, a wireless r https://lateai.com/en/tutorials/eggbot.html https://lateai.com/en/tutorials/eggbot.html Thu, 17 Sep 2026 05:06:09 -0000 The EggBot is a drawing robot that prints on spheres such as eggs and light bulbs: the egg spins between two axes driven by one stepper, the pen carri https://lateai.com/en/tutorials/drone-face-tracking.html https://lateai.com/en/tutorials/drone-face-tracking.html Thu, 17 Sep 2026 05:06:09 -0000 Teach a drone to follow a face: the camera detects where the face sits in the frame, that offset is converted into movement commands, and the commands https://lateai.com/en/tutorials/dremel-cnc.html https://lateai.com/en/tutorials/dremel-cnc.html Thu, 17 Sep 2026 05:06:09 -0000 3D printing is great for rapid prototyping, but it has a ceiling when it comes to strength, surface finish, and material variety. Nikus's approach was https://lateai.com/en/tutorials/dotter-printer.html https://lateai.com/en/tutorials/dotter-printer.html Thu, 17 Sep 2026 05:06:09 -0000 Dotter is a giant plotter that draws on paper dot by dot with a pen: two stepper motors move the X and Y axes, a servo lifts and drops the pen, and a https://lateai.com/en/tutorials/document-scanner.html https://lateai.com/en/tutorials/document-scanner.html Thu, 17 Sep 2026 05:06:09 -0000 Photograph a paper document with a camera and it automatically finds the page edges, corrects the perspective, and sharpens the text, producing the ki https://lateai.com/en/tutorials/diy-thor-arm.html https://lateai.com/en/tutorials/diy-thor-arm.html Thu, 17 Sep 2026 05:06:09 -0000 A LateAI “Build Your Own Robot” guide: the full workflow for Thor, an open-source 3D-printed six-axis robot arm — the yaw-roll-roll-yaw-roll-yaw industrial configuration, motor torque tiers with 5:1 belt reduction, slewing-bearing and ball assembly, two electronics paths (Arduino Mega + ControlPCB / Fly Super8Pro), GRBL / RRF firmware, and Asgard and Thor-ROS (ROS 2 + MoveIt2) control. https://lateai.com/en/tutorials/diy-faze4-arm.html https://lateai.com/en/tutorials/diy-faze4-arm.html Thu, 17 Sep 2026 05:06:09 -0000 A LateAI Build Your Own Robot guide: the complete workflow for Faze4, a fully 3D-printed six-axis arm — the six-joint cycloidal reduction ratios (J1 25:1 / J2 27:1 / J3 15:1), link dimensions and timing-belt specs, an assembly strategy for roughly 1000 parts, the V2 distribution PCB and first power-up, plus Teensy firmware with a Matlab / ROS upper layer validated against the URDF workspace. https://lateai.com/en/tutorials/diy-aloha.html https://lateai.com/en/tutorials/diy-aloha.html Thu, 17 Sep 2026 05:06:09 -0000 LateAI “Build Your Own Robot” guide: the full workflow of Stanford https://lateai.com/en/tutorials/cookie-cutters.html https://lateai.com/en/tutorials/cookie-cutters.html Thu, 17 Sep 2026 05:06:09 -0000 Want a cookie cutter nobody else has? This project turns any shape into a working cutter: find a picture online, trace it in Fusion 360, extrude the b https://lateai.com/en/tutorials/cnc-vacuum.html https://lateai.com/en/tutorials/cnc-vacuum.html Thu, 17 Sep 2026 05:06:09 -0000 Routing wood and acrylic on a CNC throws dust everywhere - it is bad to breathe and hard on the machine. This project builds a compact dust extractor