Marc Jenni – the way to his new in-house movement, part 3

Atelier · · by Christian Bissener


3D CAD rendering of a grey watch movement plate with wheel train recesses on a light blue background

Marc Jenni reports on the next step in his movement manufacturing project.

Before manufacturing starts, the 3D drawings have to be converted into a 2D version for the CNC machine. The wheel train recess and the overall shape of the main plate are already visible. Before the main plate can be machined, the 3D drawing must be converted into a usable DXF file. I will start with shaping the outside of the plate and the positions of the wheel train.

Who says 2D is old-fashioned? I need this format to move from the PC to the CNC station. The circles and lines also have to be configured so that I can programme the CNC machine later. This is extra work, which pays off once the machine is working for me.

Line drawing of a watch wheel train on squared paper, with circles for the wheels and blue guide lines
The 2D drawing of the wheel train, ready for the CNC machine