ATJ
Contributor
I made these from lengths of acrylic. I heated them up in the oven (5 minutes @ 150ºC) and twisted them into shape. Two of them twist one way and the other twists the other. The plan is to have line them up so the one that twists the other way is in the middle.
They are made from 40mm wide acrylic strips and will fit into a 40mm ID PVC pipe.
They are made from 40mm wide acrylic strips and will fit into a 40mm ID PVC pipe.