- Download the boat.stl
- Import into your 3D modeling program of choice. We recommend tinkercad.com
- Modify your boat so that it can hold as many pennies as possible before sinking as compared to the original model.
- Export your new model and add it to 3DprinterOS for printing. You will want it to print in 2 hours or less and use 30g of filament or less.

Challenge in Brief
Name: Boat Challenge
Duration of Challenge: 4 hours
Maximum number of students: 24
Facilities Needed?: Multimedia Classroom located in West Pattee, 3D Printers, Internet Access, Tinkercad web app
Materials Needed: 6-7 boats, tub of water, pennies, rulers, paper towels
Skillset: 3D Printing, TinkerCad, Maker Mindset Key Benefits: Familiarity with TinkerCad, familiarity with Maker Commons 3D printing submission workflow, problem solving, critical thinking.
Application to courses or course content: Basic 3D printing skills
Project Description: Students are given a 3D printed boat that holds approximately 10 pennies before sinking. They are also given a 3D model of the boat that can be modified. The challenge is to design/modify the existing boat so that it prints in 2 hours or less and holds more pennies than the original.
Assignments that can follow the Challenge: SolidWorks 3D Modeling