The excercise consisted in using the CNC machine to transform a 10x10x2 cm wood tile. To achieve the goal it is necessary to create a 3d model, then a G code to define how the machine will interact with the material and finally set the parameters on the CNC machine software to run the file and cut the piece.
- Modelling: Rhino
- G code generation: Art Cam
- CNC interface: NcStudio
Tools and machines:
- Manual basic tools for wood
In order to understand the possibilities of the CNC and the kind of results it could generate, I decided to make one prototype 90° angles and complex geometric intersections and another with more simple curved geometries using only boolean unions and substractions in Rhino.
For the first prototype, I subdivided a 10×10 cm rectangle in different proportional modules and created a topography by extracting them in different heights.
To make the work of the CNC more complex and understand the possibilities of it, I intersected an elliptical section volume and subtracted it from the original topography
After the volume is created, I transformed it into a mesh and uploaded into the Art Cam software whose procedure I will explain later in this blog.
The result was not as I expected maybe because of the reasons I will describe:
-Possibly the size of the geometries was too small for the milling bit.
-Sharp orthogonal shapes are not easily cut.
-The cutting path strategy was not proper for curved and orthogonal cuttings.
In a second attempt, I made a curved geometry thru a similar substractive process of design in Rhino.
I uploaded it to Art Cam