Week 4 - Electronics Production
This week we took a already existing file and router-ed of the Fab
ISP board. This board will be used to program the Arduino board,
which will also be made from scratch.
The boards we made out of a 2 sided copper plated board. We used
carpet tape to stick the material to the table on the mini CNC
router. We made 4 ISP boards off of one FR4 board.
So once we had the dimensions of one board we set the off set to
build the next one, with a space in between.
When setting up the Modela CNC mini router, always set the Z with
lowering the tool bit by eye then loosen the bit and let it sit on
your product. You don't want to take more material off then just the
copper plating, not the fiberglass.
When soldering the Fab ISP board you need a solder tip that is
smaller than 0.6mm, maybe a 0.3mm. After you solder all the
components on the board you need to check for solder runs the run
into each other. I used a Digital Multimeter to check for
continuity, making sure not runs were shorted out to each other. The
hardest item to solder was the mini USB connector. I found that if I
solder, drawing the solder away from the connector, it worked the
best.
Once I soldered all the components on the board Shawn down loaded
the program to the ISP board. I then removed the 0 ohm resistor and
the solder bridge.
Other than having to repair a small shorted run, it worked and
excepted the up load.