Saturday, August 18, 2007

Interactive Gear Template Generator

Matthias Wandel's excellent site has an interactive gear template generator "intended for generating paper templates for cutting low precision gears from plywood, phenolic, or other suitable materials with a band saw."

This elegant online tool allows you to input a handful of values to generate involute gears of various sizes and teeth. Most likely, you will want to check the "Two gears" checkbox and punch in the gear ratio (as number of teeth). You can then check that the values will create a gear pair that won't jam by checking the "Animate" checkbox. If you see the teeth of one gear overlapping the teeth of the second, you need make some adjustments.

This tool uses printer-friendly Flash. Use the on-screen "Print gears" button to print out only the gears and not the entire web page.

He even shows how to cut the wooden gears on the bandsaw.

Generate some gears to cut from wood using the Interactive Gear Template Generator. [via Make Magazine's blog]

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3 Comments:

Anonymous Anonymous said...

Very helpful site for automata-makers as well as woodworkers.

Charles

August 19, 2007 1:31 AM  
Blogger Dug North said...

Nick Carter dropped me a line about another method of creating gear templates.

The method he describes will allow you to graphically generate a very close approximation of the involute, to any precision you desire, using a simple 2D CAD program and very little math.

For all the details check out The Involute Curve, Drafting a Gear in CAD and Applications

-Dug North

August 25, 2007 8:22 PM  
Anonymous James said...

Great site!

June 2, 2009 7:37 PM  

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