Exact Physical Millimeter Precision & Multi-Tag Batch Printing
Generate standard AprilTag (36h11, 25h9, 16h5) and ArUco markers calibrated to exact real-world dimensions. Export 1:1 scale vector PDFs with 100mm verification rulers and cutting guides.
Family: tag36h11 | ID: 0 | 10x10 Grid
Lossless SVG vector rendering with pixel-aligned quiet zone
Screen Calibration (Match Credit Card)
Hold a standard credit card (or ID card, exactly 85.60 mm wide) against the screen, then adjust the slider until the blue box below matches your card.
Target: 50.0 mm
Code is automatically updated with your selected tag family and physical dimensions (50.0 mm).
Visual Fiducial Marker Comparison Guide
Choose the optimal marker family for your robotics, autonomous drone, SLAM, or camera tracking pipeline.
| Family | Inner Bits | Hamming Distance | Max IDs | False Positive Immunity | Primary Use Cases |
|---|---|---|---|---|---|
| AprilTag 36h11 | 6x6 | 11 bits | 587 | Extreme (Near Zero) | ROS2 SLAM, Drone precision landing, camera calibration standard |
| AprilTag 25h9 | 5x5 | 9 bits | 35 | Very High | Medium distance robotics, faster corner detection |
| AprilTag 16h5 | 4x4 | 5 bits | 30 | Moderate | Long-range low-resolution detection; high speed embedded |
| ArUco 4x4 (50-1000) | 4x4 | 3~7 bits | 50 ~ 1000 | High | OpenCV native cv2.aruco, augmented reality, fast tracking |
| ArUco 6x6 (50-1000) | 6x6 | 5~11 bits | 50 ~ 1000 | Very High | Multi-robot tracking, warehouse AGV localization |
Disable "Fit to Page"
In your printer dialog, ensure scaling is strictly set to "Actual Size" (100%). "Fit to Printable Area" will shrink the tags by 3~6%, breaking 3D distance calculations.
Use Matte Paper & Backing
Glossy photo paper causes specular reflection highlights under room lighting, blinding threshold detectors. Mount printed tags onto rigid flat boards (foam / acrylic).
Measure with Verification Bar
Every exported PDF includes a 100 mm scale ruler. Always take a physical caliper or ruler to confirm the bar measures exactly 10.0 cm before running SLAM experiments.
Frequently Asked Questions
Why are my AprilTag detection distance measurements incorrect?
In 95% of cases, the detector code was configured with a tag size (e.g. 0.05m) that differed from the actual printed size. If you print a 50mm tag with "Fit to Page" enabled, the actual paper tag becomes 47.2mm, resulting in a ~6% depth error.
What is Hamming Distance and why does 36h11 matter?
Hamming distance is the minimum number of bit errors required to accidentally mutate one valid tag ID into another valid ID. 36h11 has a distance of 11, meaning up to 5 bits can be occluded or misread without producing a false positive detection.
Are my tags uploaded to any cloud server?
No. AprilTag Print Studio runs 100% inside your browser using client-side JavaScript, HTML5 Canvas, and jsPDF. Zero data leaves your computer, ensuring complete privacy for proprietary robotic setups.