This will work with the old vision divider board. Newer/better one is link below.
The design for the divider to help spread students from tests. The parameter is from the the old vision. but increase the durable and appearance.
By using the PVC pipe, the cardboard will stand up evenly and give a interface to using the holder to connect them. Moreover, to keep the board smooth, pair of supports will be used to keep their shape.
The original design is here: https://www.thingiverse.com/thing:2293159
Newer design is here: https://www.thingiverse.com/thing:3378061