Here's a thorough walkthrough of installing OctoPrint on the Adafruit 3.5" PiTFT Jessie-based Image for making adding a Touch Screen to your OctoPrint setup.

Adafruit 3.5" PiTFT OctoPrint:
https://www.youtube.com/watch?v=lVM0vg_LYkY
https://learn.adafruit.com/3-dot-5-pitft-octoprint-rig/overview

STLs
https://www.youmagine.com/designs/octoprint-raspberry-pi-rig-3-5-pitft-touch-display
http://www.thingiverse.com/thing:1601055

Design Source
http://a360.co/1Ue5gZP

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