Electronics Production

Read these notes on Electronics FIRST!

For Your Future Electronics:

My previously milled circuit boards didn't function because:

  • the soldering iron was too hot
  • design flaws in the schematics
  • diodes (LEDs) were oriented wrong
  • So BEFORE you begin drawing your schematics ( which will make or break, your board layout and forthcoming circuit board), read this tutorial.

    Diode orientation - applying the component to your board the proper way: use this link!

    You can't just put components on your boards and expect them to

    magically work. Diodes aren't the only components that require proper

    orientation, so do your research and read the datasheets!

    6pin headers have a programming orientation!!

I used this tutorial when programming my programmer.

I also used the arduino serial port to check the output of the program.

Because there are no thermals, be sure to avoid cold solder joints on all components connected to the ground plane, when stuffing the board.

Identify the parts, the leads, know their orientation and solder them according to their connectivity to ground and/or power -micro-controllers & diodes MUST go a certain way.

The basic difference between soldering and brazing is the temperature necessary to melt the filler metal. That temperature is defined to be 842ºF/450ºC by the American Welding Society (AWS) but is often rounded to 840ºF. If the filler metal melts below 840ºF the process being performed is soldering. Above that temperature, the process is brazing.

Past Reflection:The Beginning of Insanity

After reviewing some of the designs and being tutored quite thoroughly by Halima (Fab Academy past/current participant), I know how to start.

I really like Andy's design, especially the jump drive capabilities, as well as the shape & size of the physical design itself.

I will start with the ISP.CAD board, and see how far I get today until about 5:00pm.

I'll want to pick up lead-free solder as well.

6:19pm SO I need to practice tightening the bit in the milling machine. I loosened it so much that the bit clamp fell out, and Adesola had to put it back in for me... I was able to successfully create a board with Adesola's mechanical help. I did well in remembering MOST of what Halima offered in instructions. I need to remember to change the bit when moving from inside to outside milling. For sure, I need to make 3 boards this week to learn how to loosen & tighten the collet. I'm taking more handwritten notes as I follow directions in learning the process. Trying to just pick this up by doing isn't working at all.

The Next Day...

So having A LOT of help from everyone yesterday was a great jump into this week's project: