Compete in a 3D bridge build-off!

Teens! Join the Fort Worth Public Library's first CAD Contest!

Información en español

Design, print and put your bridge to the test!

Throughout the month of September (Sept. 1-30), the Fort Worth Public Library is challenging teens in grades 6-12 to use 3D design software to create a bridge and then build it using a 3D printer – all with tools available at libraries across the city. The winner will receive a 3D printer and the runner up will receive a 3D printing pen. 

Bridges will be judged on strength (see rules and submission guidelines below).

Rules

Contest rules 

  • IMPORTANT: All bridge designs must be able to accommodate an S-hook, which will be used to test bridge strength. Bridges must also be printed using a Fort Worth Public Library 3D printer.
  • Dimensions: 7 inches long, 2 inches tall, 1 inch deep.
  • Material: ABS filament (available at all Fort Worth Public Library locations).
  • Time: Maximum print time of 2 hours.

Download the rules

How to submit

Submissions

  • Must include: design file, printed bridge and a form with contact information. The bridge will not be returned. It will be broken to determine which bridge carries the heaviest load.
  • Teens in grade 6-12 are welcome to enter.
  • A person can only enter the contest once.
  • All submissions must be an original creation.
  • All submissions must be received before libraries close at 8 p.m. Tuesday, Sept. 30, 2025. 

Submit

Prizes

Grand Prize

Bambu Lab A1 mini 3D Printer

Bambu Lab A1 mini 3D Printer

 

Runner-Up Prize

3D Pen PRO

3D Pen PRO

3D Printing Programs

Get familiar with 3D printing with these programs

logo of the fort worth public library foundation

 

The Fort Worth Public Library Foundation generously covered the cost of all 3D printer filament for all branches thanks to donations from community members like you.

Explore the Fun Finder tool to find your next exciting even at the Fort Worth Public Library!

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