In this step, we will cut the acrylic for two platforms that hold all of the electronic components. The upper platform holds the RFID card reader and the top LEDs. The lower platform holds the Arduino, the color changing LED circuit, and a terminal strip for all the ground connections. The design for the lower platform includes some engraving to mark where the components are placed.
You will need the following parts and tools for this step:
Two 6" x 6" sheets of 1/8" thick acrylic. I used transparent blue for the upper platform and fluorescent transparent red for the lower platform.
CorelDraw, Adobe Illustrator, or similar software if you need to modify the design to fit your power supply case.
Epilog Laser Cutter
For those without a laser cutter: you can use a saw and a drill to cut the acrylic. The only tricky part would be the design on the upper level that sits above the RFID reader. If you're doing this without a laser cutter, I'd recommend you drill a number of large holes where the pie cutouts would be. That would have the same effect and could look pretty cool.
Attached to this step are PDF files with the designs for those that do not have software that can open CorelDraw files.
Use the laser cutter to cut the platforms. "Lower Platform v10.cdr" and "Upper Platform v10.cdr" are used to cut the lower and upper platforms, respectively. I used a 60 watt Epilog Helix laser cutter and used these settings:
Vector: Speed 10, Power 90, Frequency 2500
Engrave: Speed 50, Power 80
The resulting parts will look the attached photos.
Important note: Different brand power supplies have their mounting holes and cutouts in different places: you may need to tweak the designs for the mounting platforms to match the case you have.