Camera Calibration Pattern Generator

Generate perfect, rich, black CMYK print-ready PDFs for print-at-home tests, office, or large format printing. Select a camera calibration pattern type, insert your specific requirements and begin designing downloadable full-scale vector PDFs. Such an easy-to-use interface makes generating the perfect target for your needs a breeze.

Available Pattern Types

The current pattern types are as follows:

  • AprilTag Generator - Classic AprilTag 2 (gen1) & AprilTag 3 (gen2))
  • Checkerboard Generator

Patterns Coming Soon

We are currently in the process of adding additional libraries to the free online generator tool; the pattern types coming soon are listed below:

  • ChArUco Board Generator
  • Aruco Marker Generator
  • Circle Grid Pattern Generator
  • Asymmetrical Circle Grids
Step one how to order calibration target board

Helpful Tips

  • Begin with inputting your tag, marker, or checker size.
  • Always use the "Calculated Board Size" feature. Using the calculated board size will always allow for an even, symmetrical board with enough white spacing around the markers, allowing easier detection.
  • Adjust the number of columns (left to right) and rows (top to bottom) to match the desired ratio.
  • Use the "Calculated Board Size" as a point of reference for the final exterior dimension for the board.

  • If using an at-home or office printer, you may want to be sure the final board size matches the size of the paper in the printer. In addition, be sure no scaling or rasterizing is applied to the vector PDF before print.

  • Click Download Your PDF.

  • When downloading a PDF for use on FoamCorePrint's calibration target boards, use the "Calculated Board Size" for your "Order size." Ordering the correct board size will ensure the file will not be scaled up or down.

  • After checking out and uploading your PDF to your order, please double-check the "file size" matches the "order size" before sending the proof to print.

Step two how to order calibration target board
Step three how to order calibration target board
CUSTOM CALIBRATION TARGET

Once You Have Input Your Specific Needs Above In The Design Tool And Have Generated Your PDF, Click The Link Below And Complete Your Transaction. After Checkout, The System Will Ask You To Upload Your Vector PDF To Proof Your File. If The File Size Matches The Order Size, The File Will NOT Be Scaled Up Or Down In Any Way. 

Frequently asked Questions

Easy, use our tool; it's free and easy to use! Start by selecting the pattern type and inputting your requirements; the system will render, then generate the vector file and display the perfect order size in inches as the "Calculated Board Size."

Yes, our checkerboard pattern generator is free and will allow you to manually adjust the exact size needed for your home printer. Please be sure that no scaling is applied before printing at home, as this will ensure the checker size is accurate.

Yes, we have a checkerboard pattern generator grid style on our free online tool. 

  1. Use the drop-down menu under "Select Grid Type" choose "Checkerboard." 
  2. Select the desired number of columns required for your application
  3. Now select the number of rows
  4. Finally, input the desired Checker Width; this dimension is in millimeters.
  5. After the system has finished rendering your file, keep an eye on the "Calculated board size."
  6. The calculated board size is your physical checkerboard's "Order size." 
  7. Ordering the correct size checkerboard pattern will ensure the file will not be scaled.

Not sure which pattern to choose? Try using our free online camera calibration pattern generator, or read more on calibration patterns before you give it a go!

The standard turnaround is 3 business days and is based on the approval of the art file for the order, not the time of purchase. We do offer next-day turnaround as well as same-day production. The cut-off time for production to begin is 10 am PST for "standard" 3-day turnaround, 8 am for next day & same-day production. The website is fully automated and will generate pricing when adding items to the cart. The best way to get pricing is to add all items to your cart and "proceed to checkout" to update your zip code for shipping & turnaround options for total pricing. 

Yes, we have chosen to give our pattern generator free! It's easy to use interface allows for simple, quick vector drawings that are ready for use on press.

A grid pattern is a group or set of intersecting lines or paths arranged on a grid. The group of paths overlaps over and over, creating accurate repeating patterns.

A grid pattern can be achieved easily by simply using the dropdown menu for grid type on our pattern generator and selecting the proper grid pattern needed. There are many types of grids and patterns; not all patterns are available in our tools libraries at this time but below is a list, to name a few. 

  • Circle Grid
  • Asymmetric Circle Grid
  • Apriltag Grid
  • Chessboard Grid
  • Checkerboard Grid

An Apriltag, a 2D barcode style visual fiducial system, is used in robotics and camera calibration. Apriltag calibration targets are most commonly used for object tracking in robotics applications.

In testing, Apriltags have an accuracy of 17.7 mm for the position and 4.15◦ for orientation estimation.

Yes, we do have an online free Apriltag generator. It is straightforward to use and highly accurate. Do not forget to order the correct size board to avoid unwanted scaling of your art file.

When defining how many AprilTags there are, you must first select a generation and choose a unique family. There are two generations of AprilTag families, classic AprilTag 2 (gen1) and AprilTag 3 (gen2). Here's a list of both AprilTag generations and how many tags are in each set of unique families.  

AprilTag 2 (Classic AprilTag) Familes

  • 16h5 - 30 unique Tag ID's
  • 25h9 - 35 unique Tag ID's
  • 36h11 - 587 unique Tag ID's (highly recommended)

AprilTag 3 Families

  • Circle21h7 - 38 unique Tag ID's
  • Cirlce49h12 - 65,698 unique Tag ID's
  • Custom48h12 - 42,211 unique Tag ID's
  • Standard41h12 - 2,115 unique Tag ID's
  • Standard52h13 - 48,714 unique Tag ID's

There is always a lifespan on any product. If the products are cared for, cleaned, stored away correctly, they will last many years. We use UV-coated permanent LED inks are designed to hold up over time to sunlight. The more direct contact with the daylight your prints have will impact the longevity of your prints.

Dibond's lifespan can vary depending on five key factors. But a general rule of thumb is 5-10 years 

  1. Harsh or extreme weather
  2. How much sunlight exposure your sign has and how often
  3. How often is there salt on the ground from snowfall
  4. The colors selected for the design "Reds and bright oranges often fade first."
  5. Natural elements; hurricanes, tornados, heavy snow, flooding, and hail

The physical weight of .125" Dibond is 0.78125 lbs per ft.². The formula for weight calculation on your specif dimension product can be figured by multiplying your length x width divided by 144 = Your Physical Weight.

ACM (aluminum composite material) is considered off-brand or "generic." Dibond is a trademarked brand of aluminum composite material manufactured by 3A Composites. Foamcoreprint.com only uses genuine Dibond in the manufacturing process.

Yes, you can. While Dibond is fairly easy to drill through with the proper home drill and metal bits It is not recommended. Start a live chat and ask a rep about our "special cut" finish option!

Yes, you sure can. You can print anything you like on your target. We include photo quality full-color print direct to substrate. Do you have a calibration pattern or graphic but need advanced help finishing up the setup for unique shapes, custom size, or placed drill hole? No problem, start a live chat, email info@foamcoreprint.com or call 855.465.7744 to speak with a live team member for pricing.

File types accepted: Photoshop (PSD, TIFF, EPS, PDF, JPEG, PNG, SVG) **special cut require Illustrator set up (AI, PDF, with all fonts outlined) Any other graphic program capable of creating a PDF, TIFF, EPS, JPEG, PNG, SVG file. However, The best file formats are PDF and AI files. Vector PDFs are our preferred file format. Vector files are created with shapes and colors and will always print at 300dpi at any scale.

You will need to place the order and fully complete the transaction. Once the order has been placed, you will be directed to the Upload Artwork page. From there, you will be able to upload your artwork and view the pre-proof. 


You MUST confirm that your art file matches the order size to avoid scaling up or down in proofing. If the PDF file uploaded to the order matches the order size, go ahead and send your artwork to print, and production will begin. You can remove and upload as many times as you like; production will not start until you approve the proofs.

Great question! Please DO NOT send art files to print if you have any questions about your online proofs. Please contact us via live chat, email at info@foamcoreprint.com, or call 855-465-7744 before sending files to print. There is a 10 min window approved proofs can be removed and taken out of the production line; clients can remove approved art files within the 10 min window from the user dashboard in the order history tab.

There is a 10 min window after proofs are approved where they can be removed and taken out of the production line; clients can remove any approved art files within the 10 minutes of approval of that specific art file. 

  1. Sign in to your account
  2. User Dashboard 
  3. Order History
  4. Locate the Order# in question.
  5. Click "See All Jobs / Details"
  6. Under the Actions section, if the "Replace Artwork" is RED, you are inside the 10-minute window and CAN remove the file by selecting the button.
  7. If the "Replace Artwork" button is "Grayed Out," it is past the time of removal, and production has begun.