Joep Frens' Videos on Cardboard Modeling

Chris Perry

Resources can be found on his Vimeo page here: https://vimeo.com/user11618719

Rob Ives' Essential Mechanisms

Chris Perry

https://www.robives.com/essentialmech/

Five Hundred and Seven Mechanical Movements

Chris Perry

Website: http://507movements.com/toc.html

PDF: http://www.koorneef.net/files/Five%20Hundred%20and%20Seven%20Mechanical%20Movements%20-%20H.%20Brown%20%281871%29%20WW.pdf

Make a Cam & Linkage

Jiyoo Jye
CamAndLinkage_PrintTemplate.pdf

Cardboard lends itself to different mechanisms compared to wood and acrylic. This mechanism combines aspects of the parallel linkage and eccentric cam. It also uses the springiness of cardboard as the returning force to bring the flag back down.

Learning Goals: 

  1. Understand the basics of the cam and linkage mechanism. 
  2. Apply your understanding of the mechanism to create a unique prototype. 


Part I: Template model

Using the template file provided, you will follow step-by-step video instructions on how to recreate the cam and linkage cardboard model. To complete the activity, you will need cardboard, scissors or exacto, a dowel or a pencil. 


Part II: Build your own version

Once you’ve completed the model, prototype at least 2 different ways to modify the pre existing elements to -

a) change the movement of the mechanism, 

b) customize components, 

c) introduce a new add-on feature, 

d) posit a novel application.


Part III: Document

Take photos of all your work. In the caption, make sure to describe the prototypes and explain your work process. Post your answers to the following reflection questions:

  1. Did you find having a demo template useful? 
  2. If you were to repeat this exercise, what would you do differently v. same?
  3. Describe the parts you've modified from the original template. 
  4. Are there other mechanisms you'd like to learn how to make?


Library of Methods

Jiyoo Jye
1 / 1

The Physical Toolbox is a learning resource that is tactile, interactive, and collectable. Within the parameters of a 90mm x 52mm casing, a limitless world of methodology unfolds. The collection highlights various techniques and best practices in hand modeling, digital fabrication, mechanisms, and electronics- intended to serve as learning resources for makers of all age groups. 

Planetary Gears

Saeed Arida

Gear Generator

Saeed Arida

http://woodgears.ca/gear_cutting/template.html

Ratchet Mechanism Simulation

Dyani Robarge

Note: Click on 'Youtube' icon in bottom right corner to see more ratchet simulation videos.

Simple Ratchet Design

Dyani Robarge
1 / 9
ratchet_simple.dxf

For this ratchet design, you will need:

  • 1/8" plywood, 150 mm x 300 mm
  • 1/4" dowel rod, 45 mm long
  • Four bolts, 3 mm x 20 mm
  • Two wood screws, #4 x 1/2"
  • Four nuts, 3 mm
  • Small spring (this example uses a click pen's spring, 3/16" diameter)
  • Wood glue
  • Small clamps
  • Small screwdriver