Tag Archives: Maker

Clock Repair 101: Making Sense of the Time Gears

In my previous post I finished cleaning my Goodwill clock, ending up with a jumble of gears and other parts. You may recall that when I disassembled this clock, parts sort of fell out willy-nilly, leaving me a bit fuzzy about what gears go where. In this post, I figure out which gears are part of the Going (time) Train (gear set), and as a bonus I calculate the length of pendulum this clock requires.

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Clock Repair 101: I Finished “Cleaning” the Clock

In my previous post I showed the early results of my cleaning of my Goodwill clock by hand. In this post I show why cleaning by hand isn’t really very effective at removing old oil and dirt.

After a few hours of scrubbing parts with SOS pads and toothbrushes, then rinsing in water – twice to get all the soap scum off – then rinsing in alcohol (wearing gloves this time), the clock parts are all “clean”.

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Clock Repair 101: a Time Bomb Waiting to Go Off

In my previous post I explained how I got started on this strange path to clock repair. In this post I talk about the dangers, some videos, and my first clock repair tools.

The first thing I did was to remove my Goodwill clock’s movement from the case. This step is pretty easy: unscrew the nut holding the hands on, gently pull the hands off, unscrew the wood screws holding the face onto the clock and voila, there is the movement.

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Clock Repair 101: “Lasciate ogne speranza, voi ch’intrate”

The Dark Arts of clock repair open before me. I feel the need to wear flannel. …to create a basement workshop. …and to live where it snows most of the year. What brought this malady on? A clock.

I have an old Seth Thomas “Chicago” series mantel clock that I believe belonged to my paternal grandparents, who were married in 1909. I haven’t run it for years, and got it into my head that it needed repair.

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Geometry, Gothic Architecture, Rose Windows, and Christmas Ornaments

(first published on Needhamia.com in 2007)

I find the rose windows of Gothic cathedrals awe-inspiring. From the rigid formalism of Chartres to the flamboyant explosion of Tours, their marriage of geometry, philosophy, and aesthetics with stone and glass is awesome. Built at a time when science and spirit weren’t as divided as today, each window is a statement of the beauty, order, and harmony in the world. Using only a pair of compasses (dividers) and a straight-edge (an unmarked ruler), the Gothic architects created myriad lace-like designs, making stone hang in the air and glass sing.

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Build a Minimal Weather Underground Station

Today’s post is a How-To for a project I recently completed: a temperature-only Weather Underground Personal Weather Station made from an ESP8266, a MAX31820 temperature sensor, and a few miscellaneous parts. The whole project fits inside a 3D printed project box for mounting on an exterior wall that is sheltered from the weather.

The open source project files are in my MAX31820WeatherStation Github repository.

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Well Depth Sensing: Soldering, Soldering, Soldering!

In my previous post, I designed a 3D printed sensor junction box for my well tank depth sensing project. In this post I solder… a lot.

I have 36 RJ45 jacks, 36 breakout boards for those jacks, and a pile of break-off headers for those breakout boards. Each breakout board has 8 holes for the RJ45 jack pins and 8 more holes for the header pins. That’s 36 * (8+8) connections I need to make to attach the breakout boards to the jacks. That’s 576 connections to solder!

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