Tag Archives: Clock Repair

Building a Cuckoo Clock Test Stand

The family cuckoo clock I’m working on is being capricious about when it decides to play the music, so I’ve built a test stand that will let me see what’s going wrong.

After looking through the wide variety of weight-driven clock test stands on NAWCC.org. I decided to build a floor-standing U-frame.

TL;DR: There are links to rough drawings of my completed plans at the end of this post, so you have something to start your own design from.

Continue reading Building a Cuckoo Clock Test Stand →

Problems Adjusting the Cuckoo Minute Hand

Once I had the eBay cuckoo clock cleaned, adjusted, repaired, and running, I put the hands on. To my surprise, the minute hand kept slipping, no matter how I tightened the hand nut that’s supposed to hold it in place. The solution to this mystery lay in a troubleshooting video from a cuckoo clock seller in the Black Forest.

Continue reading Problems Adjusting the Cuckoo Minute Hand →

Cleaning the Cuckoo Clock Case and Figures

An older clock has usually spent years in the company of a smoker or near a smokey fireplace, accumulating layers of tar, ash, and who knows what else. A simple dusting or cleaning with a wood polish won’t necessarily remove these layers of smoke, so when it’s time to clean a vintage clock, it doesn’t hurt to clean the case as well.

Continue reading Cleaning the Cuckoo Clock Case and Figures →

Cleaning and Adjusting a Cuckoo Clock’s Musical Movement

I’m in the process of cleaning and repairing a family musical cuckoo clock. I’ve watched a lot of videos on repairing cuckoo clocks, and have disassembled, cleaned, and repaired one cuckoo movement, so I think I’m as prepared as I can be for working on the clock movement.

The musical movement is another matter. What follows is a detailed How To that captures what I learned, what to do, and what not to do.

Continue reading Cleaning and Adjusting a Cuckoo Clock’s Musical Movement →

Is That Cuckoo a 1-Day or an 8-Day Clock?

Because of the economics of cuckoo clock repair, you can easily find old, dirty cuckoo clock movements on eBay for a fraction of what a new movement costs. These movements come with no documentation, so you get to work out which chains, weights, and bellows (cuckoo whistles) are right for them.

In this post I calculate the run time (1 day vs. 8 day) of a cuckoo movement I recently bought, and the Links Per Foot of the chain it uses. These two numbers tell me what parts to buy to make a clock case for this movement.

Continue reading Is That Cuckoo a 1-Day or an 8-Day Clock? →

Calculating a Clock’s Ideal Pendulum Period, the Sequel

In an earlier post I calculated the ideal pendulum period for the Korean clock by counting its wheels’ teeth (outer teeth) and pinions (inner teeth). This post is an update based on the errors I made while attempting to do the same for my second clock: the Ansonia kitchen clock.

What follows is a more detailed “how to” for calculating the pendulum period based on gear ratios.

Continue reading Calculating a Clock’s Ideal Pendulum Period, the Sequel →