This is a 1923 Claraphone banjo that i bought on ebay.There wasnt a whole lot there,just the neck and drum, plus a few of the metal bits and pieces, and only three of the tuners with a finish that only 90 years could apply. The total length is about 21 inches and the drum is about 6 inches in diameter. I made the clock out of scraps of black walnut veneer and super glue, lots of super glue. It has an hour hand, a minute hand and a seconds hand, it shows am/pm and days of the week. The clock is powered with a battery feeding an electromagnet that is turned on and off by a sliding brass switch. Instead of a regular pendulum, it has a pendulum wheel that has a permanent magnet mounted to it that reacts with the electromagnet making the pendulum wheel rotate back and forth, thus driving the clock. You can build a wooden gear clock any way you want, it helps to think outside the box, or in this case inside a 6 inch wooden cylinder.The gear train is pretty much standard, there are a few changes that i will explain later. If you want to know more about the math of a wooden gear clock this site http://garysclocks.sawdustcorner.com
will explain things in detail, you will find a wealth of information. If you want to build your own clock this site http://lisaboyer.com
is one of several sites that has plans along with other stuff. This is how I built this one.
Step 1: Tools and Materials
Tools: scrollsaw, drillpress, hand drill, 1/16 through 1/2 inch drillbits, forsner drill bits, small srewdrivers, flat and phillips, dustmask, voltmeter, sharp knife, dremel tool, soldering iron, pliers, wire cutters, allen wrenches, 120 grit to 600 grit sand paper, wax paper, two ceramic tiles about 8 inches square and a twenty pound weight ,small paint brushes, box fan.
Materials: black walnut veneer, super glue, 1/16 to 1/4 brass tubing, 1/4 x 1/32 thick brass flat bar, small brass and stainless screws, 3/16 stainless steel tubing, about 1/8 stainless steel welding rod, stainless steel mig wire, 3/16 mild steel round bar,1/4 spring steel flat rod, I used some broken band saw blade with the teeth ground off, solder, and wire, magnet wire, some very small sealed bearings, 1/8 and 3/16 inside diameter, I found these on ebay under micro bearings, very small rare earth magnets, also got these from ebay but radio shack has some too, white and maze colored paint, 1/4 dowel pegs, lead fishing wieghts.