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Matthew Dockrey

@attoparsec.clacks.link.ap.brid.gy

6 Following82 Followers

Maker of kinetic sculptures, public art installations, and random ephemera. Based in Seattle, Cascadia.

(AKA Fish)

🌉 bridged from ⁂ https://clacks.link/@attoparsec, follow @ap.brid.gy to interact

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@attoparsec.clacks.link.ap.brid.gyOct 16, 2026, 3:47 PM

This is what happened when I built a pedal-powered RV this summer:

https://youtu.be/NH39M4AFdLM

@ifixcoinops.retro.social.ap.brid.gyOct 15, 2026, 5:51 PMReposted by @attoparsec.clacks.link.ap.brid.gy

Dude redoing the pavement outside my house just pulled his phone out to take my number and I was like WHOA WHAT THE HELL IS THAT because it was I kid you not three times thicker than any phone I've seen in the last ten years, it has a camping light, he charges it twice a week and it doesn't mind […]

@attoparsec.clacks.link.ap.brid.gyOct 15, 2026, 6:08 PM

@ifixcoinops ...I won't deny I'm tempted.

@attoparsec.clacks.link.ap.brid.gyOct 15, 2026, 6:16 AM

The new sight glass fits! Unfortunately, I just noticed there is a bearing needed for mounting the turret head that did not come with my box of parts, so now I have to wait for a replacement for that.

A worn, stout cylinder branded BURGMASTER with 6 small drill chuck spindles pointing out radially from it. It painted blue, but much of it is chipped away. Near the middle is a circular hole with a shiny new sight glass labeled OIL LEVEL.An exploded diagram of the Burgmaster OB turret head, with a "A005404 BEARING" centered.
@attoparsec.clacks.link.ap.brid.gyOct 14, 2026, 6:56 PM

This is the second project like this with a shockingly high refresh rate I've seen recently. So has epaper always been capable of this, and capitalism utterly failed to take advantage of it? Or are hobbyists just the first to explore some recent improvement in the technology? Because I've been […]

@attoparsec.clacks.link.ap.brid.gyOct 14, 2026, 6:41 AM

@enobacon It's been amazing feeling the difference over just the last few years as Seattle has finally started to hit some real network effects in our trail system.

@attoparsec.clacks.link.ap.brid.gyOct 14, 2026, 2:35 AM

@younata You are DEFINITELY on the right internet for finding people who care about fasteners.

@tithonium.clacks.link.ap.brid.gyOct 13, 2026, 2:35 AMReposted by @attoparsec.clacks.link.ap.brid.gy

@attoparsec I'm pretty sure it says you're taking damage from in front, but your ally is healing from the left.

@attoparsec.clacks.link.ap.brid.gyOct 13, 2026, 2:29 AM

I will never understand automotive information system logic.

Dashboard of a 2018 Chrysler Pacifica PHEV, showing a low pressure alert on the front left wheel. It shows 34 PSI in red, while the front right wheel reads 33 in white, not being called out as a problem.
@attoparsec.clacks.link.ap.brid.gyOct 12, 2026, 11:07 PM

Torment (1944) A clumsy examination of abusive teaching practices and exam stress in the guise of a cautionary morality play. It very much does that mid-century thing of explicitly and earnestly talking about psychology all the time. I found most the characters to be exaggerated caricatures […]

@attoparsec.clacks.link.ap.brid.gyOct 10, 2026, 8:13 AM

They don't look too different, but after lengthening the arms by 10 mm, adding a well-defined bend outwards to match the width of my head perfectly with a heat gun and a printed jig, and then giving the ear-grabber-hooks a more pronounced curve... I think these […]

[Original post on clacks.link]

A pair of glasses in slightly chunky, light grey FDM printed frames. In front of them is a simple forming jig, also printed. Behind them, electronics clutter from the Life Cell project.
@attoparsec.clacks.link.ap.brid.gyOct 8, 2026, 7:21 AM

Still waiting on the sight glass, but the oil seals came in, so the turret has been reassembled with all its spindles. A couple of the bearings in there were feeling a bit chunky, so I replaced all those as well. And new snap rings, too!

(Yes, it only ever had 5 […]

[Original post on clacks.link]

A blue cylinder of cast aluminum. There are 6 spindles sticking out radially from it, 5 of which have small Jacobs chucks on them. It is labeled BURGMASTER in the casting, plus 1-6 labelling each spindle.
@attoparsec.clacks.link.ap.brid.gyOct 7, 2026, 9:33 PM

I've been thinking about making an exoplanet orrery, because ultra-short period planets could fix the biggest problems with orreries: scale. It really bugs me that you can't (practically) show the planets and their orbits and the sun all on the same scale in our […]

[Original post on clacks.link]

Diagrams of the WASP-19 and WASP-47 systems, all done in the same scale. The first has a single planet about a 10th the size of the star, about 3 stellar radiuses out. The second has 3 planets, only one of which is large enough to see on this scale. The innermost is almost grazing the star's photosphere, while the other 2 are farther out than the hot Jupiter in the first example.
@attoparsec.clacks.link.ap.brid.gyOct 7, 2026, 7:15 PM

@hannah I like that they made it paint-by-numbers-able.

@attoparsec.clacks.link.ap.brid.gyOct 7, 2026, 4:30 AM

@jef Yikes!

@attoparsec.clacks.link.ap.brid.gyOct 6, 2026, 11:01 PM

@dymaxion.org Crap, I hadn't even realized he had died!

@attoparsec.clacks.link.ap.brid.gyOct 6, 2026, 8:01 PM

The Last Chance (1945) A POW/refugee escape film with actors who had actually escaped a POW camp, shot in Switzerland while the war was still going on. The acting/writing isn't always the strongest, but overall it's fine with a couple pretty good moments. More importantly, the urgency and fear […]

@attoparsec.clacks.link.ap.brid.gyOct 6, 2026, 3:04 AM

Update: Turns out the oil seals were trivially available on Amazon, so that's sorted. And after a false start, I think I've figured out the proper replacement for the sight glass. The key there was to look for a "Bijur Window Unit", which somehow never came up during searches for press-fit sight […]

@attoparsec.clacks.link.ap.brid.gyOct 5, 2026, 5:53 PM

I've added number set symbols to my collection of technical concept emoji, for those interested: https://www.dropbox.com/scl/fo/eokvzxxf24j5h276q3e0f/AML69HDq7WsD5ZnQyGcpAP0?rlkey=eyeuzjyvtkdm9tm23maawn4fp&st=lokl2u2f&dl=0

A list of emoji image files in a Dropbox: gdnt-straightness, gdnt-total-runout, number_set_complex, number_set_integer, number_set_natural, number_set_rational, number_set_real, platonic-solid-dodecahedron, platonic-solid-hexahedron
@attoparsec.clacks.link.ap.brid.gyOct 5, 2026, 6:44 AM

Not a wildly productive weekend, but I got the balancing spring in the Burgmaster lever mechanism cleaned up, regreased and remounted. It had snapped at some point before I got it, but close to its inner attachment point, possibly because its lube had gone crusty […]

[Original post on clacks.link]

The grey-green body of a mid-20th-century turret drill press, with the lever arm attached to the squat cylinder of the coil spring housing. It is sitting on the welding table in an unfinished shop space.The coil spring inside its housing. There are at least 9 complete wraps around the outside, with the inch-wide spring bolted in the middle to  thick shaft.
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