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Gerald Davis on Muck Rack

Gerald Davis

Ann Arbor
As seen in: Wiley Online Library, Memory Studies, PBS, Harvard Business Review, PNAS, The Conversation, Law.com, Stanford Social Innovation Review, NewsBreak, Chief Executive Magazine and
Amateur sociologist, Detroit patriot, smug vegetarian. Org theory, social movements, corporate power, finding alternatives. Opinions generated at random.
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Articles

Workflow for modeling an involute spur gear

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By Gerald Davis
| The Fabricator Verified
FIGURE 1. At a glance, these gears appear to be the same. One of them has the correct involute face curve on its teeth. The other two were easy to make, just not useful for manufacturing. Editor’s Note: Supporting CAD files for this column can be found here. Acknowledgement: Thanks to reader David Guza for suggesting this gear-headed article. Gear models come from three primary sources—download, wizard, or DIY. Figure 1 shows an example of the same gear from each of those sources.
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A review of CAD workflow for tackling what-ifs

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By Gerald Davis
| The Fabricator Verified
FIGURE 1. An image for a floor plan is used to create a virtual prototype of the garage. The image is inserted as a Sketch Picture into the sketch for the 3D model. The Sketch Picture is scaled one-to-one to be a useful reference. Editor’s Note: Supporting CAD files for this column can be found here. Mainstream 3D CAD is useful for visualizing what-ifs. A home improvement project is full of what-ifs and is useful here for exploring a few CAD tricks.
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A review of workflow for revising a CAD model

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By Gerald Davis
| The Fabricator Verified
FIGURE 1. A stop switch is to be added to the battery cover on the drone cart. The workflow to add the needed cutout while maintaining the proper bill of materials for the cart and cover imposes a bit of discipline. Editor’s Note: Supporting CAD files for this column are available on request. Figure 1 presents a routine CAD task: add a component to an existing assembly. In this example, the battery cover needs to gain a cutout for mounting a stop switch.
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