During the wildfires of 2020 I saw many instructions for how to quickly duct-tape air filters to a box fan, to remove smoke from household air. Years before that I was interested in buying a woodworking shop air filter that would remove fine sawdust that otherwise floats in the air for days or weeks.
This post describes my experience making a air-filter-box-fan design, using 3D printed clips instead of duct tape to hold the filter to the fan.
CAUTION: I have no idea how safe it is to clamp an air filter to a box fan. Such a filter may reduce the air flow to the fan’s motor, which might result in overheating and fire. Always supervise the running fan. You’re responsible for your own safety.
Continue reading Adding an Air Filter to a Box Fan
Each clock repairer seems to have their own favorite method for cleaning their clocks. Some prefer mineral spirits; some like ammoniated cleaners; some like dish detergent. Because I’m just starting out, my particular cleaning process is evolving. This post covers my current process and recipes.
Continue reading Cleaning a Clock Movement
In August I bought an old, 7-drawer student’s desk at a garage sale. Since then I’ve been converting it to a clockmaker’s bench. This note is a quick update; I plan to write a full, sort-of-how-to set of posts once I’ve completed it.
Continue reading Progress on My Clockmaker’s Bench
I’m repairing a cuckoo clock that has a commonly-seen problem: one of the screws mounting the movement to the case has stripped its hole. Normally, I’d try filling the hole with a wood filler, but this time I tried something different: “Bushing” the hole with a plug of new wood.
Continue reading Repairing a Clock Case’s Stripped Wood Screw Hole
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
A while ago I bought a beat up cuckoo clock on eBay, to practice cuckoo clock cleaning and repair. Its face was missing most of its numerals. In this post, I describe how to use a 3D printed template to glue the numerals on a cuckoo clock’s face.
Continue reading Replacing the Numbers on a Cuckoo Clock Dial
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
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
My Ansonia kitchen clock had a loose warning pin – the pin that stops the clock’s gonging at the right time – so I decided to bite the bullet and do my very first actual metalworking, no-going-back, clock repair!
Continue reading Replacing a Loose Warning Pin
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 Clock, or an 8-Day Clock?