Setting up a facing operation
One of the first operations we always have to implement is part facing. You may be wondering why. The reason is quite simple: we should always first perform those operations that will give us a true reference point for further operations or for measuring. Since, most of the time, the origin is on the front of the stock or the front of our part, a first facing operation will allow us to measure where the origin is located properly.
As you can see here, the origin is set to be on the front face of our stock:
Figure 4.1: Lack of reference on the stock face
However, since the stock is never precisely cut, we may have a bit of trouble trying to take measurements from the origin!
Let’s now suppose that we need to remove 3 millimeters (mm) of material in front of the part from a low-alloy steel stock with a diameter of 55 mm:
Figure 4.2: Material to be removed
