This is a tablet / phone stand design that approaches to improve the original design in following aspects:
1 more additional angle adjustment, I felt the 45 deg min angle of original model is not sufficiently low for some reading conditions
I raised the hook plane so that the arm is not supporting the device on the back side
On the bottom side the device is supported by a plane of a Hook part rather than two separate hooks. This makes the stand support a whole lot more devices even if the screen is small vs the stand.
- Model is easier to print. Parts are designed rigid enough to support low layer-adhesion materials, such as ABS.