This is the biggest test of the school watch project.
If done correctly, the geartrain boring process will align the bridge jewels precisely above their counterparts in the mainplate. Any error will show up as a tilt in the wheels, and will cause the geartrain to bind and seize.
Luckily, my boring was right on! Well, right enough. The geartrain turns smoothly, which means it's time to move on to the next step: bridge shaping.
You can see the terrible, awful, no-good sawing job I did to the plate in the GIF above. It's good enough to separate the bridges, but it will take a lot more work before they're ready to show off.
Watchmaking student at the Lititz Watch Technicum, formerly a radio and TV newswriter in Chicago.