index

Principles Practices project management

Computer-aided design

Computer-controlled cutting

electronics production

3D scanning and printing

electronics design

molding and casting

programming

Computer-controlled machining

input devices

composites

interface and application programming

output devices

networking and communications

mechanical design, machine design

applications and implications

invention, intellectual property, and income

project development

final project presentations

Eletronics design

The assignment is to redraw the echo "hello-world board" by adding a button, a LED (with current-limiting resistor). Later I checked the design rules, and made it. Unfortunately I only had time to design and mill the board and for next week I will sold the components and program it. I used Providence electronic design tutorial. Link here

1 - First I installed Eagle in windows 7 link to Eagle here. 2 - After that I downloaded the library Fab.lbr from the assignment page. Link here. I Opened it and with the right click I saved it in the Lbr sub-folder inside Eagle. 3 – Once I opened Eagle I loaded the new library (Fab). 4 - So I downloaded the "hello-world board" files to use in Eagle; Link here. 5 - I made a “New Project” in the Eagle folder, and put the echo hello-world .brd and .sch files there. 6 –I opened the"hello-world board", that was located in the schematic folder. 7 –I placed in the canvas some components from the Fab library: 1. Button : 6mm OMRON SWITCH 2. LED: Zener diode SOD123. 3. Resistor : RES-US1206FAB 4. Ground : GND 8 – Now that the components are already near the main circuit I started to build the connections between them in order to close the circuit to the function I previously decided. I used the “wire” and “junction” commands to do the connections. In"hello-world board".brd file, I moved the components and the connections to achieve a better position in the board. ;         9 – After I finished designing the circuit in Eagle, I exported the file of the board in a PNG file. 10 – In Adobe Photoshop I opened the PNG file of the board and added a 4mm margin to each side of the board. 11 – Also in Photoshop I added the Fab Lab SP logo to the circuit and created a secondary file, based on the first and erased the circuit letting only the board (in an inverse color). 12 – The two PNG files were ready to be printed. The first, with the circuit, to be milled, and the second, with the board, to be cutted. 13 – We placed the board in the Modela and from FabModules we send the first file (with the circuit) to print.