Week 7: Propulsion

Overview

Up to this point, most of our work has been pushed, pulled, or hand cranked.  We will examine other forms of propulsion for our wheeled devices.

 

 

Propulsion

The action of driving or pushing forward.

 

Motors

Motors are our most likely go-to means of propulsion here at ITP.  Thanks to Physical Computing, we understand how to work with motors and control them.  The trick has aways been how to mount motors and mount things to motors.

Gear Motor

 

Tamiya Tracked Vehicle Chassis Kit

 

 

 Tamiya 4WD Chassis Kit

 

HUB-ee 120 RPM Robot Servo Wheel 180:1

 

12 Volt Robot Drive System

Wind/Air Power

Wind power is an often overlooked form of propulsion at ITP.  You can get a lot for very little, one box fan can turn many pinwheels.

Pinwheel

Easy to make.

Windmill

I made a simple one out of aluminum, cut on the Othermill.  Works with our 3mm hub.

.svg File, Vectorworks File

 

Compressed Air

Air Engine

Jet Propelled Pinewood Derby Car

 

Spring Power

Spring Powered Car

Mouse trap cars, kitchen timers, wound up rubber bands, any kind of wind up mechanism.

Music Box Movements

Crank Music Box

 

Fly wheels

A heavy revolving wheel in a machine that is used to increase the machine’s momentum and thereby provide greater stability or a reserve of available power during interruptions in the delivery of power to the machine.

 

Zip Strips/Pull Cords

 

Energy of a Flywheel

Energy of a Flywheel

Wintergatan

 

Gyroscope

A gyroscope is a spinning wheel or disc in which the axis of rotation is free to assume any orientation by itself. via

Gyroscopic Camera Stabilizer

Manual

Gyroman

 

How To Make A Gyroscope (Anti-Gravity Wheel)

Benchtop Gyroscope – Clickspring

 

Misc.

Clock Movement

Quartz Time Movements

 

Stirling Engine

 

 

Mid-way Survey

Please take the Mid-way Survey, let me know what you think of the class.  The responses are anonymous, taken seriously, and have an effect on the course.

 

Assignment

You will be making a Flywheel.  It can be part of an assembly/mechanism/vehicle/robot or stand alone, but you must have it spin and be under some form of propulsion.

 


Related Reading/Viewing

14 Wheel Drive Crawler

Robot Shop Propulsion Kits

Hidden Motor Inside Bike

Intro to Fab: Mounting Motors

A New Form of Peristaltic Locomotion in a Robot

Clickspring: Benchtop Gyroscope, Part 2

Gyroman Walking Gyroscope

Gyroscopic Robots (more)

DIY Gyroscopic Camera Stabilizer

Make a Simple Motorized CD Gyroscope

Gyro Stabilized 2 Wheeler

How Does a Gyroscope Work