I grabbed a RPI3 to run OctoPrint and needed a display to use it standalone. I wanted a great looking case and the FLIRC was a must. Problem is that the FLIRC only supported access to the GPIO via a ribbon underneath. this wasn't ideal as I wanted a more flush look without exposed cables. Under photos In order from right to left is the process I took to get it done.
Note: Hand tools are needed. I used a center punch, drill, multi-tool & hand file to make the rectangular hole in the FLIRC case. It is made of Aluminum.
Amazon Shopping List As of 1/26/18
CanaKit Raspberry Pi 3 with 2.5A Micro USB Power Supply 39.99
Waveshare 3.5inch RPi LCD (B) 320480 Resoution Touch Screen IPS TFT Display (Comes with stylus) $29.99
Flirc Raspberry Pi Case Gen2 (New Model) 15.95
Generic 2x13 Pin Female Stacking Header 0.1" for Raspberry Pi Gpio Extra Tall(pack of 2)unavailable
You might have better luck using
2x20 Pins Female 0.1" Pitch GPIO Header for Raspberry Pi A+ Pi Model B+ Pi 2 Pi 3 (pack of 5) $12.88