Saturday, October 17, 2015

Making the Dial of Jumping Hour

I tend to produce another version of the dial for jumping-hour model.
Using brass mainly, blue-steel hands will be fitted for more classical(?) looking.

Working at compact milling machine with rotary table.
Centering...

Making from 1.2mm thick brass plate.

Drilling some holes for fixing screws and etc.


Cutting the outline and step for index parts.
 




The blue circle shows a failure point. However, it is correctable. It was just going to start again from beginning. It was close...

It was cut off by coping saw. Vallorbe saw has very sharp blade and easy.

Fix the failure part...


Applying 'Perlage' circular decoration pattern by using rubber bonded wheel. The tip diameter is 1.5mm.

I changed the jig and applied it on the center part too.

Finished in this way.


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