Gear Tooth Geometry.

I feel like, with making the first two "Introduction to Digital Computers" videos I've gained a superpower. And I've used that power to help me visualize and solve another problem I was having, figuring out the shape of spur gears (and eventually, internal spur gears, the next major feature I'd like to add to the... Continue Reading →

Wire forms.

So if you've been watching my Quick Videos you know I've been building a lot of circuits on prototype boards. I also took the liberty of 3D printing a couple of useful tools to help measure and bend wire. The first on the left helps measure lengths of wire; each wire is measured in each... Continue Reading →

The test print of the Earth-Moon Orrery

So after a couple of days of printing, and a little sanding, some assembly, and not a tiny bit of cursing, I have a printed orrery gear assembly for our Earth-Moon Orrery. It's a little stiff, but that's to be expected since I haven't perfected the gears through sanding. (That means carefully going through each... Continue Reading →

Testing 3D Printing of Gears

Kythera is a product sold by Glenview Software for $10 which allows you to string together complex mechanisms using spur gears. It helps you design complex mechanisms quickly on your computer and export .STL files for printing on a 3D printer. And today we'll use it to build a test mechanism, in order to test... Continue Reading →

Calibrating The Printer.

If you've ever tried to print something with precision dimensions on a 3D printer, you notice things aren't exactly the dimensions asked. Sometimes it happens because the printer is miscalibrated, but often, it's due to the technology. Take, for example, the Form 2 Printer by FormLabs. This fantastic 3D printer uses stereolithography to print parts,... Continue Reading →

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