Where skillset meets mindset.

  • Home
  • Projects
    • Project Summaries
    • Planning
  • Students
    • A High Tech High Student
    • Featurettes
  • Sponsorship & Donations
  • General Resources
    • Shop Tools
      • Hand Tools
      • Power Tools
      • Tool Safety
    • Radio Control Hobbies
    • Laser Cutting
    • Automata
    • Gears & Mechanisms
    • Machining
    • Physics Resources
    • Stained Glass
    • Tips & Guides
    • Electronics
      • Paper Circuits
      • General Electronics
      • Arduino Hardware
    • Coding
      • Processing
      • Arduino
      • Google Apps Script
      • Troubleshooting
  • Educator Resources
    • Project Design Guide
    • Musings
    • Project Ideas
  • GRITLab
    • General
    • Adversity by Design
    • GRITLab Media
    • GRIT Case Study
    • GRITLab Expansion Plan
  • MAKESafe
  • About
    • Scott Swaaley
    • HTH Cover Letter
    • Professional Resume
    • Professional Projects

Gears & Mechanisms

This page is an attempt at listing the most useful and common mechanisms that are within our means to build in class.

Gears Resources

  • Making Pinwheels
  • Gear Generator
    • Gear Generator (free version)
    • Gear Generator (advanced version): ask me for access
    • My Gear Making and Gear Spacing Tutorial
    • How-To
    • More How-To
    • Features
  • Meshing Gears @ 90 degrees:
    • Imagining a box created by the interior surfaces of the gears …
    • A very loose fit can be achieved by spacing the center of each gear’s shaft from the corner of the box by a distance equal to the Pitch Diameter of the gear.
    • A better fit can be achieved by spacing one gear (as described above), while aligning the Tooth Root of the 2nd gear with the same edge. If using the “Gear Template Generator”, this can be achieved through the following equation: (Pitch Diameter) = 2*[ (Distance from center of gear shaft to edge of box) + (Tooth Spacing)*(1.25) ]
  • Making Boxes
    • Box Maker Program
    • Choose “advanced options” to modify cut width.
    • For material 0.12″ thick, a cut width of .008 makes an extremely tight fit.

Great Resources

  • An amazing collection of animated mechanisms, by Nguyen Duc Thang: https://drive.google.com/a/hightechhigh.org/file/d/0B-ptsBCDJBomOTFTM2w2WnBGTGs/view?usp=sharing
  • David Rector’s Linkage simulation Program: http://blog.rectorsquid.com/download-linkage/
  • Force Effect Motion: Available on iPhone & Android Devices, as well as online: https://forceeffect.autodesk.com/frontend/fe.html
  • 507 Mechanical Movements, recently put online!
  • A few examples of ratchets.

Geneva_mechanism_6spoke_animation

The Geneva Wheel

Also known as: (also known as “Geneva Drive” or “Geneva Stop”)

What it does: It turns constant rotating motion into move-pause-move-pause.

Formal Description: click here

How to design:

  • Video: click here
  • Photos: (below)
  • Alternate Versions

Other Mechanisms & Considerations

  • Considerations for Planetary Gears

Good Places to Get Ideas

  • Rob Ive’s Types of Mechanisms
  • Rapid Design through Virtual and Physical Prototyping
  • Rob Ives Mechanism List
  • Mekanizmalar – Animated Mechanisms
  • Misc. Wooden Mechanisms
  • Mechanism Video – Ralph Steiner Mechanical Principles 1930
  • The Kinematic Models for Design Digital Library

Print Friendly, PDF & Email
  • About GRITLab
  • Contact

Copyright © 2023 · Altitude Pro Theme on Genesis Framework · WordPress · Log in

 

Loading Comments...