bbot's blog

I found a drinks cooler, which should suit my purposes well, since it's already got a spout, and a little valve to control the spout. This means less stuff I have to design (and then debug) which is good. Unfortunately, it's "well used", so I'm going to have to figure out how to take a valve apart and clean it; plus, it's not that wide. If I align the intercooler coaxially, then there's not going to be a lot of room for dry ice, or rather, there won't be a lot of room for large chunks of dry ice. Smaller chunks will sublimate faster, and disappear quickly.

A workaround might be to form "D" shaped coils, and butt the curved side up against the interior of the cooler. This will leave a large contiguous space for dry ice, and simplify the coolant flow path; (Essentially a loop, rather than the torus of the previous design) but limit the size of the coolant pump impeller, which isn't a big deal anyway, since I shouldn't need high coolant flow rates.

As of today, I am employed at Union Square as a Lighting Maintenance Technician.

It's interesting working at union square again. I'm seeing all the people who I saw going home at the start of my shift last time, but all the time. It's weird! And easy to put into words, as you can tell by that masterful sentence there.

Another item of note, this is my first full time job that actually takes place during normal waking hours. Pro: Daylight; other, somewhat more normal, people. Con: Traffic! Now I know why everyone constantly complains about Seattle traffic. I don't actually have to drive in it, but the buses are absolutely packed.