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Rubber Band Cars

A stretched rubber band is a great source of elastic potential energy. When released, that energy is converted to kinetic (motion) energy. You can attach your rubber band to a simple machine, for example, a wheel and axle, to build a simple rubber band–powered car. In this lesson, students will design and print the wheels and gearing system for a pre-designed rubber band powered car. While the project is intended to be a single lesson with 3D printing following the lesson, the project can be extended to a second lesson by either testing the printed designs or testing different sized wheels / wheel designs.

Subjects: Design and TechnologyScienceComputingArt and Design
Years | Grades: 7th Grade | 11-12 years8th Grade | 12-13 years9th Grade | 13-14 years10th Grade | 14-15 years11th Grade | 15-16 years
Duration: Lesson 1: 60 minutes Print Time : 4 to 5 hours

Objectives

Know the affects of gearing and traction on speed and torque
Know how to measure the circumference and diameter of a circle
Design and manufacture a set of wheels and gears suitable for 3D printing

Tools and equipment

be3D eDee printer
Set of example models
Internet-enabled computer with access to TinkerCAD®
Paper pad and pencil
Printed lesson resources
Rubber bands
Ruler / measuring tape

Skill requirements

To participate in the lesson, students should be able to:

Use TinkerCAD, Fusion 360 or Similar CAD software at a beginner/intermediate level
Be comfortable using DeeControl software including adjusting print settings
Use the be3D eDee printer

3D models overview

Total print time 12 hours 10 minutes
Total filament 26.7 m
Additional non-printable components
Printed all at once

RUBBER BAND CAR

6 hours
14.2 m

Note: Values are calculated for one set of models.

Lesson resources

Lesson plan
Example Matryoshka models (Doll and egg)
Worksheet
Walkthrough
Presentation
3D models
3D print instructions
Curriculum Alignment: ISTE standard compliant

This is a premium 3D lesson plan. Premium content is available to licensed YSoft be3D eDee users. Become a licensed YSoft be3D eDee user.

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