Tag Archives: Maker

Clock Repair 101: How the Great Wheel Works

I just now learned how the great wheels – the mainspring gears – work, by finding they didn’t work correctly in my Korean clock. The strike train Tension Washer, that is supposed to hold the gear firmly against the ratchet, has come loose. …so I had to disassemble the clock, after it had run fine for over 11 days.

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The Second Clock: A Craft-Altered Ansonia Derby

Since I was making good progress on my first clock, I decided to haunt the antique malls looking for  a second one to repair. I wasn’t really planning to buy a clock until I’d finished the first, but I found the perfect second clock to work on.

I found it in an antique mall in Hillsboro (Oregon). It’s a mantel clock – a Kitchen Clock – similar to my family Seth Thomas clock that is my eventual target for repair (once I know what I’m doing).  It also fit the bill of a) not working well, and b) not worth a lot.

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Clock Repair 101: Ordering Replacement Parts

In my previous post I calculated the theoretical length of the pendulum my Korean 30-day clock requires. You may recall that the clock as I bought it had a broken pendulum suspension spring, and the pendulum parts – the suspension rod and bob – were missing. In this post I order replacement pendulum parts.

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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: Disassembly / Destruction

In my previous post I covered the dangers of mainsprings, and bought the minimum of tools required to safely handle mainsprings. In this post I disassemble my junker clock.

Using my new mainspring clamps and Let Down key, I Let Down (unwound) the chime mainspring and time mainspring, following the process I’d seen in the videos:

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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.

Continue reading Clock Repair 101: “Lasciate Ogne Speranza, Voi Ch’intrate”