Here is a notebook stand with a spacious tray underneath in DIN A4 size.
I have divided the notebook holder into 4 parts, so you can lay the outer sides on the print bed.
This results in a more uniform appearance, enhancing the overall look of the shapes,
and all outer sides will have the grain of the print bed.
Dimensions:
Width: - outer 34 cm - inner 32 cm
Depth: - outer 23.50 cm - inner 22.50 cm
Height: - rear 15.50 cm - front 6.50 cm
Surface for the notebook:
25 cm deep and 34 cm wide
The 3 surfaces are each 1 cm wide (left, right, and top)
The slope of the surface rises at an angle of 25 degrees.
I simply glued the two parts together with super glue; you probably can do a better job than I did ;)
To avoid it being too fiddly, I placed 3 connectors on the left part that fit smoothly into the 3 holes on the right half.
I used regular PLA.