Electronics Production

For this week, instead of the dev board I developed last week, I decided to make a Hatsune Miku shaped board.

After checking that the board would be millable, I started to mill my board, only for the board to detach halfway through the milling process. After hitting the emergency stop button and resetting, I inspected the board.

The traces were very deep. What probably happened was that the bit was loose, and because how the mill bit is designed, it meant that it was being pulled into the board. So I reset and restarted the process (tightening the chuck more than before).

Next, it was time to solder the resistors and LEDs. It went surprisingly okay. I think I found a rhythm which made the process smoother.

To test out the board, I wrote a small program that made all the LEDS blink.

Files can be found here

Group Project

Going through the training for the PCB mill, the mill can be prompted to switch bits during a job. The bits were 1/64" and 1/32", but there were others. The mill would do small details first before larger ones, and had a conservative mode where it would go slower.

For submitting to a board house, I tried out JLCPCB.