6. Large format CNC (Computer Controlled Machining)¶
This week, we were assigned to design a wooden furniture piece and cut it using the CNC cutter. Each person was given a wooden sheet that had the size of 2440 x 1220mm and 12mm thickness. I chose to start with something basic and easy to execute, so I chose to create a book stand, as shown in the images below, that can be easily assembled.
I went with the same dimensions shown above. As it can be noticed the piece placed below is slightly smaller that the piece placed above. The designer of this piece may have chosen to go with this direction because of the nature of the book dimensions.
I created a file with the dimensions 2440x1220mm and made the gaps 12mm, and moved to the workshop to start the cutting process.
I started the process by importing the file for testing the design and the joints.
Then it was time to include the dogbone fillets in the joints of the pieces. The dogbone fillets is basically a cutting technique used in CNC cutting that gives room for air and for stable joining of the pieces. It was called dogbone because it looks like the head of a bone when you place it in the joint gaps.
The process of including dogbone fillets is done manually to each corner of the joints.
As it can be seen that the first version of the cut had the problem of not having a 45 degrees angle in the bookstand which may affect the cover of the books in the long-term.
I started creating joints for the boards. The goal of these joints is to assemble two stands together.
The Results¶
