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Monthly Archives: November 2018

Top view, showing the striking great wheel is loose from its arbor
Projects

Clock Repair 101: How the Great Wheel works

27 November, 2018 bneedhamia

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.

Continue reading Clock Repair 101: How the Great Wheel works →

Clock RepairMakerProject
temporarily shortening the pendulum
Projects

Clock Repair 101: Adjusting the Korean Clock Speed

20 November, 2018 bneedhamia

In my previous post about this clock I ordered a replacement pendulum suspension rod and bob, because the originals were missing. In this post I cut the suspension rod to length and adjust the speed of the clock, using audio recording to measure the timing of the tick-tock.

Continue reading Clock Repair 101: Adjusting the Korean Clock Speed →

Clock RepairKorean clockMakerProject
Ansonia Derby clock as-is
Projects

The second clock: a craft-altered Ansonia Derby

11 November, 2018 bneedhamia

Since I was making good progress on my first clock, I decided to haunt the antique malls looking forĀ  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.

Continue reading The second clock: a craft-altered Ansonia Derby →

Ansonia DerbyClock RepairMakerProject
The end of the suspension is all that remains of the pendulum
Projects

Clock Repair 101: Ordering replacement parts

11 November, 2018 bneedhamia

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.

Continue reading Clock Repair 101: Ordering replacement parts →

Clock RepairMakerProject

Et proiectus est talpa – "and the mole was cast out"

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