This week, we learned some basic knowledge about the automatic watches. Henrik showed us the three different kinds of oscillating weights and explained what are the differences. We also learned how the oscillating weights wind the watches and saw the different reversers. Henrik also showed us a simple way to check whether the rotor were good or not, and this technique is really good to find out which rotor should be replaced or serviced.
CJ was making the cutters for his bridge this week. There were 2 places where his bridge needed the special cutters to cut the slots for the winding and sliding pinions. However, he could not find the correct cutter on the market. Hence, he decided to make them by himself. He used the school machine to make the cutter, and the cutter looks great. It's always fun to make our own tools by hand when we need them.
Sliding bolt system for oscillating weight
Another type of sliding bolt system for oscillating weight
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| Ball bearing system for oscillating weight, with magic lever for the automatic winding. |
Another ball bearing system for oscillating weight.
CJ making the cutters
Hardening and tempering the cutters
The cutter ready for trial.
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