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This really is the most computer science book ever written.
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Got the laminated panels for the keyboard case lid trimmed to size, and the holes for the latches/handles cut. Looks like I'll need to trim some of the extrusions down slightly, but then it's just riveting it all together. (And waiting for some delayed corner braces to arrive.)
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(The book is Verbal Behavior: Adaptation and Psychopathology by Walter Weintraub, btw.)
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I'll need to talk about corpus linguistics in the upcoming Ten Hundred keyboard video, which reminded me of a 1981 book I came across in grad school. It attempts to find personality markers based on some fairly simplistic statistical analysis of people's speech. Not particularly successfully, I think, but I was working on a system to synthesize language with emotional cues and this was one of the only sources of quantitative data I could find. It even spends a chapter analyzing the Watergate transcripts using the same tools! My final project for that class had sliders for how schizophrenic, delusional, depressive, compulsive and Richard Nixon the generated text was supposed to be.
Anyway, a copy just arrived so I can include it in the video.
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Got half of the keyboard case made. The other half will be trickier, having all the latches and handles, but this is the one that will actually be seen most the time, so I wanted to get it right. Getting very close to a full assembly, just need the final revision of the control board to arrive, and I can mount it all permanently.
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My god.
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Started some tentative experiments cutting with the pantograph tonight, using a set of engraver letter templates I got off eBay. Promising, but definitely a lot remains for me to figure out. Including why the motor cuts out every few minutes. But it's (otherwise) up and running!
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Got panel 3 (of 5) populated. The others will have to wait for some replacement diodes to arrive, as it turns out these tiny SOD-323s are really easy to break off if you're not careful. =\
I was briefly panicked when I realized that I had never confirmed that the switch spacing on the PCBs was right. So I popped some of the reject keycaps on, and it looks like I haven't just wasted an almost inconceivable amount of effort!
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I needed some wrenches for the collets on the pantograph, in the very unlikely sizes of 42/36 and 42/32 millimeters. And I was feeling overwhelmed with other projects (...and lazy...) so I had a pair cut from one of the online services. They definitely came out better than I would have ended up making!
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Realized that this must have been a problem others have faced before, and found some 3D-printable rails to hold 6 key switches in the correct alignment during soldering. They also make it easier to hold everything in place while flipping the PCB over. This is speeding up assembly by maybe a factor of... a lot.
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But I've worked out some systems that are speeding things up now. And I managed to get a terminal beep working through the Arduino serial connection, so testing the switches goes a lot faster now.
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Board 1 of 5, after about 1.5 hours of work. This is going to take a while.
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I probably spend too much time worrying about how cetaceanoid species are getting along.
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I wish I could know the geological models a cetaceanoid alien race would develop (assuming an Earth-like.world). So much of plate tectonics on clear display, but only having access to crust less than ~150 million years old. And whatever could be seen on the continental shelves, mostly just piles of sediments. And no road cuts!
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