Uploaded February 2021 | Updated September 2026, 2 weeks ago
Here a dial hand is being cut from a steel blank using a CAD-CAM wire spark-erosion machine. If one looks closely at the steel blank it is actually a hacksaw blade. It turns out that the steel these blades are made from will blue up beautifully in the oven. For more detail go to: my-time-machines.net/astro_01-21.htm .
Here a dial hand is being cut from a steel blank using a CAD-CAM wire spark-erosion machine. If one looks closely at the steel blank it is actually a hacksaw blade. It turns out that the steel these blades are made from will blue up beautifully in the oven. For more detail go to: my-time-machines.net/astro_01-21.htm .
