Choosing part placements
When studying part placements, most of the time, we can follow different paths, but some of them may be more complex than others. I’m going to explain what I think is the best solution regarding our specific example, but it may not be the only solution according to the type of machine at our disposal and the holding fixture we intend to use.
So, now that we have seen the part we plan to create in Figure 8.1, we have to imagine how to move from a stock of 110 x 110 x 45 mm to the final shape. As we discovered from the drawing, we have to machine both sides of the stock as the features will appear on both sides.
Since most milling operations have to be performed on the rounded side, I would machine this side last:
Figure 8.2: Part placements
As you can see in Figure 8.2, during the first placement (labeled as #1), I plan to perform the following operations:
- Back side facing
- Circular slot milling
- Drilling...
