Progress on the Twenty Tiny Memex by 2022 project is slow but steady. I made a "size and shape" model to figure out whether I like how it feels. Now I'm back in CAD working on the input and display electronics assemblies.

You might think from this screenshot that I've drawn even a single shape in this CAD file, but no. I'm just randomly moving around cells in a spreadsheet as a form of procrasta-planning.

People seem interested in how resin printing works so here's a picture of my smaller workstation which I use for prototypes:
๐ŸŒธ Tiny resin printer
๐ŸŒธ Vat for bathing parts in alcohol
๐ŸŒธ UV curing light
๐ŸŒธ Silicone mats to protect the bench
๐ŸŒธ Cleaning supplies
๐ŸŒธ Weight scale

Say hello to Transmutable Swan serial number 1, sporting the Adafruit FeatherWing OLED.

The custom cable assemblies unexpectedly arrived weeks earlier than estimated. DigiKey under promised and over delivered.

The CAD for my new thing is finished but I'm still futzing with the resin mix. Here are four faceplates made with different mixes of white and clear soybean goo. From left to right: 100% white, 20% white, 10% white, and 0% white.

A bit of routine maintenance and then I'll start a print of what might be (tolerances and post-process willing) the first shippable body of a new product.

The new soybean-based resins are pretty versatile in terms of appearance and tactile experience with relatively minor changes to the initial print and post-processing. Their energy footprint and cradle-to-grave cycle is excellent compared to most other options for this use. These case design iterations all use the same resin with variations in UV curing time, alcohol or water baths, and a few drops of black dye.

After a design research phase it can be fun to move on to persona development. Over the years I picked up a few tricks to encourage stakeholders to remember and enjoy "working for" the personas during the design process:
๐ŸŒธ Alliteration in names
๐ŸŒธ A one-line description of their role
๐ŸŒธ A color code associated with each persona

I put together a chunky controller, too. It looks and feels like I found it in the desert.

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I, uh, decided to make a mechatronic tardigrade. Here's the main body skeleton.

The only slightly hacky bit was removing a screw to turn off write protection of the bios. It required just a screwdriver but for folks who aren't used to poking around inside electronics it could be a bit stressful.

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I ended up with a Dell 11" Chromebook for ~$0 and had fun wiping all traces of ChromeOS and installing GalliumOS, a derivative of Ubuntu Linux for small lappies. It took a small amount of terminal work but required almost no knowledge as the directions were clear.

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