Case parts making Pt.7 / Crown

The time of making crown parts has come at last. Already outer shape has been prepared on the lathe.

This crown has nine grooves. When I produced a trial model, I cut them with a starting drill. However, I use a Φ1.6mm ultra-hard rotary bar this time.

This tool is very useful. It facilitates cutting with small resistance.

To a lathe again. Chamfered and hiarlined.

These two parts will be combined later.