My first boat

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This is my first boat. It’s pretty silly, but was a lot of fun to make.

During the summer before my senior year of undergrad, I was staying at college and doing research on dilute gas simulations using Monte Carlo methods. My roommates and I had rented an apartment for the year (haha, holy hell…Worcester apartments are a special kind of grimy) and the lease started at the beginning of the summer. My roommates hadn’t moved in yet though, so I had the whole house to myself. read more

Low power Arduinos, part 1

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As part of an ongoing project, I wanted to see how low I could get the power consumption of Arduinos to go. The reason is as follows. When getting back into Arduinos a few months ago, I wanted to try a telemetry project of some sort, collecting data remotely and sending it back. Ideally, the idea would be to collect data from different places and analyze the aggregate in some cool way, but that’s a story for another post.

The point I was going for, though, is that I wanted to put these Arduinos in places that wouldn’t have constant access to power, so that already means using a battery. Using a battery to power an Arduino isn’t a big deal (plenty of people do it for portable projects), but once you’re looking at long term powering without recharging, it’s a different story. read more

Measuring the spinner

This is silly and derpy, but here we are. Read on if you’re having trouble getting to sleep.

Often for research, we need to make a thin film of photoresist, so we can do photolithography or e-beam lithography. Photolithography is cool (technical term) because you can pretty easily (seriously: with a UV flashlight and a home printer; I’ll probably write that up at some point) pattern the film over a wide area. It’s straightforward and easy enough that machines can do it. However, its resolution is relatively limited, down to about 1 micron (human hair thickness: 25-100 micron). I should be careful saying this because you can get better resolution through various methods (like using a smaller wavelength of light), and for industrial applications they can do a lot smaller. However, for research purposes, ~1-10 micron is usually the figure people say (and this depends on definition too; do you mean the smallest linewidth, distance between lines, or precision for a given spot?). read more

The Providence Phoenix’s “Nifty Fifty”

The Providence Phoenix was a Providence alternative newspaper that’s now defunct. It was in what I’d call the “alternative lite” category, definitely having some stuff you wouldn’t see in a more “official” newspaper like the Providence Journal, but also non-offensive enough to be in most businesses around town. To be honest, I think it was a pretty good representation of Providence as a whole.

I wouldn’t say I ever intentionally really read it, but on more than a few occasions I would be waiting somewhere or getting a quick slice of pizza alone (shoutout to Fellini’s for keeping my arteries clogged), and just pick up a copy (it was free) to see what was going on around town. read more

Servo controller box

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Woowee, this is a long one.

This is actually something I did for my job. Here’s the deal: I have this electrochemical bath that has a sample in it; one electrode is a piece of graphite, the other electrode is the sample itself. Don’t worry about what the bath does for now, but it’s important that the longer the sample is in the bath, the more the effect of the bath is on the sample. It’s pretty much linear with time. read more

Orange Ya Glad: first chassis design

The first of many. So, so many.

So I’ve been making these guitar pedals. Ostensibly they’re about cool musical effects, but, let’s be honest: if you’ve seen any of them on the internet, it’s at least half about how they look. People make really damn cool designs on their guitar pedals. One of my favorite guys who makes cool designs is this guy Cody Deschenes, though he actually does a different design method than I’ve done here (which you’ll see in a future post!). read more