6. Large format CNC (computer controlled Machining)¶
This week, I have been introduced to the large CNC cutting machine used to cut wood in order to assemble big designs such as chairs and tables. The piece of wood used is of dimensions 240x130x1.2 cm
Group Assignment¶
Individual Assignment¶
The Design¶
I started by looking for a design online and decided to go with a desk of my own design. I started designing the desk in Fusion 360. The design was quite simple.
The idea is to build a desk similar to this…Which i found when i was looking for a design......
. I started by designing the desk itself:
I chose the length to be 130cm and the width 60cm. I also added holes for the joints with widths of 1.2 cm, lengths of 10cm and separated by 4cm. The width is the standard for the type of joint…
Next, I designed the legs. I took the total height to be 1m and made 3 joints of 1.2cm height with rounded edges. I made the distance between the joints 4cm and their base length 10cm as shown below:
I also added a hole of length 4.5cm, width 1.2cm on both legs.
Next, I made a support piece that goes between the legs of total length 119.86cm. I made a joint of length 1.2 cm on each end and rounded the edges as shown below:
Finally, I extruded the parts by 1.2cm and assembled the table:
Then i have added feature to get the exact dimension, that way the program which is used for the CNC machine will get the accurate dimension
Toolpath and Cutting¶
The next steps was to cut the table. I started with uploading the exported dxf file into the special software Vcarve PRO and the 3D parts were converted to 2D parts.
Fasial arranged the pieces on the board in a way that conserves as much space as possible. Then, added tabes along the defining lines of the parts. These tabes are used to keep the parts intact while the cutting process continues to prevent deformities.
adjusted the setting for cutting the holes such that the cutting blade starts cutting from the inner rim of the lines that represent the holes as shown below.
After that, added tabes for the holes as well.
The Final Product¶
After cutting the pieces and using sand-paper, I was able to join them together and use the table.
