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Category: miscellaneous

202 Articles
miscellaneous, plotters, web development ben May 14, 2026

X,Y Coordinates Tradition

I just did my yearly X,Y Coordinates stint with local 5th graders. It’s the 5th time I do it and this year is notable in that I didn’t write anything I wanted to fix for next year. Every time previous I came out thinking I needed to fix a bug, prevent a confusion, or improve something or other. This time it looks like the formula has been refined to its optimum.

Kids will definitely push the limits, and I love that relentless will to push, it’s identical in nature to IT security curiosity. 1 kid wrote some code and then copy/pasted it a bunch of time, no problem there’s an upper limit on instructions. Another tried to hog all the squares by having them draw just a single dot, no problem there’s a cool-off timer that prevents you from blasting through squares. I haven’t had to use it but I also have a censorship mechanism :), I can scribble over any square and the machines will prioritize it.

So this year went really well, I think I can say with confidence now that the magic operates every time, this isn’t just luck with a good batch of kids or other. Every time we launch into “coding”, there’s a moment of sheer teeth grinding where I think it’s going to be a disaster. And every time they are all extremely motivated by the idea of controlling the machines when they hit “submit”, and so they all pull through and help each other out. Once one of them has gotten the machines moving, there’s a real frenzy to figure things out, and then their next drawings get more and more sophisticated. 5th grade might have a few blasé pre-teens who are hard to motivate, and they will inevitably get sucked in. Now they might “whatever” out of the activity after a bit, but even they will want to have done it at least a couple of times :). I particularly like when kids realize they can coordinate action on neighboring squares to do something greater, I purposefully don’t suggest that to them. I’ve gotten good at fending off “learned-helplessness”, not that I was doing it for them before, I’m just quicker to disengage. “You want to control the laser kid? Well you better figure it out”.

The “coding” interface

One of the snag we always hit is kids not able to discern the difference between typing in a URL or doing a search with Google. And a giant middle finger please for all the corpos purposefully blurring lines so kids form the habit early of running anything they might want to do on a computer through Big Corp Inc.

At the end of the day I send the wall plotter on an overnight portrait of a well liked central figure in the school. The next morning when I pick up the machine, the kids get one last wow effect. I’ll make a note of how many “go_to” statements went into the picture, usually several hundred thousands to get them thinking about scale and how curves can really be just a few tiny straight lines. They submit an average of 30 such statements for their cool drawings.

miscellaneous ben March 28, 2026

Protected: Oak Bits Obstacle Course

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miscellaneous ben March 05, 2026

Whoosh

He watched the Olympics and created all sorts of jumps and grinds.

miscellaneous ben March 03, 2026

Thomp

miscellaneous ben March 01, 2026

Protected: Singing Glass

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miscellaneous ben March 01, 2026

Protected: Squirt Squirt VI VII

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miscellaneous ben March 01, 2026

Protected: Gravity Testing

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miscellaneous ben February 23, 2026

Protected: Lake Skating

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miscellaneous ben January 13, 2026

Protected: Using the Vertical Space

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miscellaneous ben January 10, 2026

Protected: Trogdor Reborn

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miscellaneous ben January 01, 2026

Xmas Sorcery

I wish I had a microscope to see how this is achieved, zooming in super close doesn’t reveal any particular reindeer artifact.

miscellaneous ben December 30, 2025

Protected: Snow Fort Season

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aesthetics, miscellaneous ben November 28, 2025

Works Entirely Too Well

And by this I mean it works as well as any dip pen I’ve ever played with, which is to say not great (but it’s fun at least).

We even wrote and sealed letters, fancy!

Turns out most ballpoint pens’ tip & ink reservoir fit perfectly inside a turkey feather. So the kids will be able to rock their turkey pen at school.

miscellaneous ben November 08, 2025

Protected: Made it to Space

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miscellaneous ben October 22, 2025

Protected: Arlesian House

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miscellaneous, plotters ben October 05, 2025

Bis Repetita

Second deployment of Laser Portraits at a public event. It was a lot busier this time around, and totally fun as previously. Also very stressful until a few portraits are behind me. It doesn’t matter how much I test and check, something always goes wrong but I got it all figured out just in time. I’m also refining the formula for how to present and interact with people. The PewtyBots performed all evening without missing a beat.

miscellaneous ben September 21, 2025

Protected: Climbing Trees

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miscellaneous ben September 17, 2025

Energy Diversification

I hate to say it, but we have hooked on to the grid. Well, we have an outlet, outside, with nothing plugged in. The house and kids are growing, we use ever more energy and I have less time to implement. We still don’t have a root cellar which would be the perfect spot to keep batteries from freezing, and would trigger our investment in a good bunch of lithium. And so until then it’s only 3 batteries keeping us going, and really they do great, but in the winter with shorter days, more cover and colder weather, we have used the generator. And so the idea with having access to the grid is to replace that, and in general having one more option to fill batteries.

I am dead worried about complacency, I really don’t like the idea that it’s right there waiting to be used and easy. In reality, the last car we bought should have been electric. We didn’t have the capacity to “fuel” one though, it would have been nice to have had the grid option then. I still very much have the intention to fuel one with the extra solar array that’s been sitting in the shed for a while now, but at least if push comes to shove, we can still get the car now and experiment with increased solar later. That is one thing about home grown solar, with change comes a transitional time of experimentation and learning lessons the hard way. Which is a bigger deal when talking about mobility (AKA me waving my hands explaining to Nicole why her car doesn’t move).

Another hard truth is that we’ll never have enough storage to run AC in the house through the night. We’ve done wonders with running it during the day, taking a cold shower in the evening, and fanning cold air in at night. If you give us a Summer like 2025 every year, no problem. Seared in our memory though is a brutal heat wave which lasted for days and offered no respite at night. We want to be better placed to tackle future heat waves, and the grid means having the option to run AC through the night.

The house is still solar and autonomous, the grid is only an extra decoupled input we can tap into when it makes sense. But we’re no longer as off grid anymore. I’m confident we’ll keep growing our array and experimenting, I’m genuinely curious about all things solar.

miscellaneous ben May 11, 2025

Protected: Sufi Whirling Cougnette

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I.T., miscellaneous, plotters ben May 07, 2025

X,Y Coordinates Redux

As is now tradition, I taught my session on X,Y coordinates to local 5th graders.

As before, the collaborative drawing website I made worked wonder for getting them to time-share on the drawing machines. Each of them picks a square and works on it, I disable actual drawing for the class and they can only “code” with go_to(x,y) type commands. When they submit their drawing, the machines get to work. Kids absolutely love the idea of controlling the machines, and having that bit of time to shine as their drawing is being rendered. They are all extremely motivated to figure out the minutia of the code to these effects.

It looks like I bring a new machine every other year, we started with the tabletop plotter, then I added the gondola one, and of course this year it was lasers!

The kids really loved it as I suspected they would. I have learned that light management is a bit of an issue in the classroom when it needs to be dark but not too dark. Something to improve for next year.

It was a good crowd this year and I’ve been tempted to see if I could do something extra having some of them build the etch-a-sketch plotter.

miscellaneous ben May 05, 2025

Protected: Berezka

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miscellaneous ben April 05, 2025

Protected: Umbrella Flight Trials #2

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miscellaneous ben March 29, 2025

Protected: Or not

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