After setting up an old Android phone for Klipperscreen I needed a way to mount it to my printer. After searching around and being unable to find anything that fit my needs I decided to try and design my own.

I used the 4040 V Slot Mount as a starting point and designed the rest in Onshape. It's a simple design that simply slips into the V Slot on the right lower support of an Ender 3 / Ender 3 V2 and holds a phone in landscape mode for using Klipperscreen.

Hopefully this helps someone else.