Pathfinders Robotic Arm This robotic arm is an easy to make 3-dimensional model that grabs, lifts items horizontally, and can turn very close to 90 degrees! Designed to be used alone (with a nice syringe holder), or in a group...

Pathfinders Hydraulic Gearbot Ages 8+ A cool engineering building kit with attitude, for kids of all ages! Inspired by Leonardo da Vinci and Rube Goldberg (a knockout team!), this building kit will provide hours of building fun and then many...

Pathfinders Da Vinci Catapult This catapult is one of Da Vinci redesigns from the medieval catapults of 400 or so years earlier. While the Medieval catapult we made uses the force of twisted rope, this uses the tension stored in...

Pathfinders Lift Bridge One of the most common types of bridges for freight trains, our Truss Design Lift Bridge is a working replica of the many lift bridges that have been made over the last 100 years. Lift bridges became...