|SVTrackR SMD TNC
In my learning process of making my own DIY PCB and after ordering some common SMD components ( capacitors, LEDs &, resistors ), I decided to design a small and functional TNC that only need 4 connections to handy and a few jumper wires to Arduino.
*** This is the first time I ever successfully made a DIY PCB.
Let's start with the design on EagleCAD ..
|EagleCAD SVTrackR SMD
Generate gerber and do a 3D view of the board. This method is easier to spot any errors.
|3D Gerber view
|Printed out for UV transfer to UV PCB
|PCB holder / cover
|UV lightbox UV LED turned on
|UV lightbox and photoframe cover
|Exposed copper after Sodium Hydroxide bath
|Ferric Chloride bath
I use thinner to clean away the green stuff and leave you with a shiny copper traces. Not bad for a first timer doing SMD PCB.
Now for the drilling and soldering part. A tip from 9M2CF, always solder before drilling as the solder will guide the drill bit into the holes to be drilled.
|Soldering SMD resistors
|SMD SVTrackR TNC back
|SMD SVTrackR TNC front
Comparing sizes between the old MicroModem with Mini Pro and the new SMD TNC that will run from either Arduino Mini Pro or Arduino Nano.