10. Mechanical design and machine design
Aka "Huevardo"
In this week, we made as a group assignment, a machine project. We found some interesting project in the web.
Because we are in easter celebrations, we decided to make an "Eggbot", a simple machine that draw over an egg shell.
After downloading the project to see what component do we need, we started to cut the parts with the laser cut.
We also made some 3d printing for most of the mechanism.
Got from our instructor some steppers motors, a servo, an arduino and a shield from an old 3d printer.
Programming
For programming, we download a library for an arduino eggbot, the GRBL, and from the page of the project all the sketches needed for the steppers and the servo.
We also download and installed a program made to control CNC machines, CNCjs
Arduino sketch file
Also design a case for the arduino and the shield, outside of the Eggbot, because we want to get easily access to the boards.
Download case file
The drawings
After we get the set-up of the machine working perfect, we used a vector program to generate de .DXF files to upload to the Eggbot.
We need to draw a ribbon design, more like a rectangle, that measures the perimeter of the egg (sphere and cylinder also) as the long side and the height must be equal to the wide part of the egg.
This ribbon might be exported as a .dxf so the CNCjs could import it and process it as a .nc job.
Egg ribbon file
