Ages 9-16+

rrrrr rrrrr



Starting at $19.95 with free shipping when you subscribe Learn more »


Build a ballista and experiment with aiming and launching!

Includes a step-by-step video tutorial link, illustrated blueprint instructions, all the materials, and a special-edition Tinker Zine magazine for more fun!


  • Build the body
  • Add the arms
  • Complete your ballista


  • Ballista Engineering
  • Physics of Projectiles
  • History of Ballistas

Using charter school funds?

Get more details here »

Shipping Info

Our Fans


rrrrr rrrrr


3 reviews

Write a Review
  1. r r r r r

    Jean, May 18, 2019

    Great concept + history

    Loved that my kids are not only receiving something to make and use, but also get a history lesson on what is being made. This crate gave my daughter the ability to build something on her own while also learning about the past. Very interactive after being completed.

  2. r r r r r

    Donna, Mar 12, 2019

    Fun and creative

    This crate had a super interesting design for the ballista that gave my son the opportunity to really investigate the intricacies of the design. The ballista demonstrated a great scientific principle with detailed instructions and gave kids a chance to see physics at work with something they built independently. A very interactive project once completed and super fun all around.

  3. r r r r r

    Deborah, Feb 4, 2019

    Cool device that really works

    This project really captured my grandson's interest. The building experience was awesome and the included cups and balls added greatly to the play value once the ballista was completed. My grandson loved finding different angles to shoot with and knocking down his tower of cups!

Write Your Own Review

Only registered users can write reviews. Please, log in or register