Mount Your SmartiPi Touchscreen Case to the top rail of your Ender 3, or any 2020 extrusion with this widget and a few t-slot nuts/screws. This works great with OctoPrint. This is the first in a long line of things I intend to create to clean up my Ender 3 set up, and hope it helps you!
[This also doubles as a GoPro mount.]
Overview and Background
Lesson Plan and Activity