IMPORTANT: This will only work with iPad Pro 12.9in 3rd Generation!
Before this mount, the iPad would frequently drop between the mattress and the headboard of the discontinued IKEA HOPEN. It'd also sometimes dislodge the apple pencil. No more!
Using Apple's published case accessory document, I got the location of the magnets. This design uses clips to the bed frame, which are sufficient even in PLA with 2 walls. It allows for 3 large magnets to the steel frame, but I never installed them since the clips work great.
I found 4x4x1.3mm magnets and carefully placed them and put scotch tape over to hold them in place and protect the iPad surface.
Finally, there is a cable strain relief on the back to keep the USB type C cable ready to go.
The author marked this model as their own original creation.