Free 3D Printed Gi Checker

Gi checkers are a tool used to verify the official IBJJF uniform measurements are met by competitors. Don't risk getting disqualified--print out your own custom Ground Fighter gi checker. 

Gi Checker

To Print

If you have your own 3D printer, or have access to one, simply download this 3D model (STL) file that we've created for you and get started. If you do not have a 3D printer, just follow these steps:

  1. Download the STL file
  2. Go to
  3. Upload the file to their site (the file was created in mm if asked)
  4. Search for a hub near you
  5. Select the material you want to print in (We suggest PLA plastic unless you prefer something fancy like wood or metal.)
  6. Get an instant quote
  7. Place the order by clicking the "Send request to hub" button

You can read 3D Hubs full "How to 3D Print" details here.

*Gi checkers are designed to IBJJF regulations. However due to possible irregularities in the 3D printing process Ground Fighter cannot guarantee that your gi checker will print to exact specifications.