For the pcb we have got two files.
I am going to open them in Autodesk Eagle. The software is free for students to use.
This is the schematic:
To mill and cut the board with the milling machine we need two files.
For that we open the board file.
You can see that there are many descriptions.
To remove them click on layers.
Select hide layers.
Click again on layers and select these layers to show.
Now we still have descriptions.
To remove them go to options.
Click on settings.
Go to misc and remove these four checks.
Your board should look like the lower picture. Make sure to zoom in the board with a little offset.
Go then to file > export > image.
Save it as "inside" with the following settings.
Your image should look something like this.
Now you can choose an editor you like for example GIMP to crop and color the picture.
This should be your new inside file.
Now you color the whole board.
This will be the outside of the board. Save it as "outside".
To generate files for the milling machine you can follow this link: fabmodules.
Chose the upper settings.
For the settings on the right you have to choose specific settings for your milling machine.
In my case I used the MDX-40.
Following settings should be changed with the MDX-40 for the inside:
Repeat the steps above with your outside file.
Following settings should be changed with the MDX-40 for the cutout:
I used the MDX-40 for the pcb board and as a material FR2 rubbed in alcohol.
The material was stuck to wood to prevent damaging milling machine parts.
After the machine was turned on we had to change the drill for the inside and outside.
Then we set the home position of the machine with a program.
The orange, red and green arrows are for the x and y positions.
The blue ones are for the z position.
To set the z origin set the drill to 15000 rpm and turn it on with the button under the rpm.
Now you can either try to hear when the drill touches the material or you can measure it with a multimeter.
Press apply when your position is right.
If you see that your z position is too deep or too high while the machine is drilling you can stop it and start a new job with a new z position.
In this case we can press the view button to check the milling. If we press it again for a few seconds the machine will continue the job.
Always vacuum the dust after opening the machine.
This is the board after solding the micro chip and drilling the holes for the pins.
Here is my finished board.
To let the LED blink we have to program it. This happens with the help of the Arduino IDE.
https://raw.githubusercontent.com/damellis/attiny/ide-1.6.x-boards-manager/package_damellis_attiny_index.json
The pcb and program works!