I’m going to start some works in order to realize some tests. Specifically I’m going to realize the model which there will be created the glass fiber molds of a Cigarette Case, to do it later in carbon fiber. As you can see it’s a very exclusive article, although it’s for smokers, it’s always a nice object.

First step, as always, is the modeling. I’ve started with a geometry defined with aesthetic criteria, and next I will prepare the machining phase. The cigarette case is symmetric, that means, both parts are the same, it will be opened by the bigger side, and they are symmetric by this plane. It’s also symmetric respect the other two orthogonal planes, what make the design much more easy. So I only need to draw one quarter

Esta seria la pitillera terminada. Un diseño sencillo |

I’ve left two planes in one border, to screw the hinges, I must to take into account to planify the fabrication.

I must to design also the real size model, for which I must to define some surfaces to make the apply of glass fiber more easy. Thanks to the simmetry, I only need to machining one part. This would be the looks:

The process is very simply, basically the machining strategy will be very similar to the last post. First a roughing, and after a finish machining with a spheric tool. But there are some details:

First, the roughing is done automatically, but I must to define the security planes, the roughing stock volume (with the real dimsensions), the tools I’m going to use, and the feed rate and machining deep.

After this, I need to define some parts, because I’m going to realize some paths with a finish tool 2 lips 90º to define:

- By one side, the surface where the inclined surface ends.

- By other side I will define the line who separate the part from the other helping surfaces

Placement of the stock in the table. Here I’ve installed temporary the aspirator, very usefull, to avoid the dust around all the room.

Ten first paths of the roughinh

Once the roughing is finished, contour path and define the surfaces as I told before.

Detail of this paths

And the finish starts. This time with only one operation I will reach the real surface, so i will save time. In total, it takes 58 minutes working, without the tool changing time. So it’s important to optimize the programming.

Conclusion, the machine works fine! a proffesional work!