How does one use diagrams for webs or similar anyway?

If you want to sew or tie some kind of outer lock around strings interlocking with each other or around a string interlocked with itself, and you want the interlocking to have a certain look, the thing is to first make some kind of diagram for each point on the cardboard where you provisorically attach the string, until it is so interlocked that it can be fixated, and then you remove the cardboard.

It is also a good idea for objects meant to have volume./HGL