Still a work in progress. Had a few older Amazon Fire HD 6 tablets laying around. I used FTB_V35.0 to install Google play onto the Amazon Fire HD 6 tablet, remove the lock screen and ads, pay attention to the specific instructions for the Amazon Fire HD 6, they are good instructions. Yes FTB_35 is trustworthy, been around for a long time. This allowed me to follow the video below to setup KlipperScreen on it. I then plugged it into my BTT CB1 via USB and it all worked. Mine just snaps together, no screws needed for that part. The connector has a stone that I have not added just yet. I did upload the original one from that creator. Just trying to give credit to that user.
Here it is in action:
Link to youtube video I used: How to use your old Android phone or tablet as a KlipperScreen video I followed
I borrowed the front mount from this other maker and added to my project, credit to them for that.
https://www.printables.com/model/825794-the-100-cyd-with-hinge
The author remixed this model.
This is a add-on, I snagged another front mount and designed my own Amazon Fire HD 6 case to fit the mount.