After the construction of the cylinder did not go as planned last time, I said that I would try out using solid metal bars instead of fibreglass rods, as these will be more sturdy and will not warp when put under any pressure. With the help of my mum, we were able to connect 3 bars together using bolts and screws because we could not find a single bar long enough (6.3m) –
My mum also created an extra piece of fabric to fold over the bar to hide this connection.
We then attached roman blind chord with toggles at points around the cylinder, with the chord tied to a clip in the middle (like last time)
This allowed for us to evenly erect the shape by making the toggles tighter until we eventually had a taut cylinder that is ready to have visuals projected onto.