Duplo toolo frames, webs and trusses

ken_andrew

Can someone attach a photo showing how you can combine the toolo beams (short and long arms) with other parts to create trusses and other frameworks which are stable and can be repeated (ad infinitum) to extend the reach of the longest single part.

How do you make stable vertical columns from the beams (so they can't rotate over their base or flop over).

Which are more useful beams: hooks at both ends, screws at both ends, or one of each.

Where are examples of duplo toolo which use the beams as poles, levers, towers, arms, bridges.