- Go to a factory where plastic welding is doneand scrounge somethick
scraps of uhdp ? cut out blanks with a 2"or 3" hole saw, then rout
trhe edges with a v groove or c groove. you've made a sheave . try
the same with epoxy soaked 3/4 ply scraps , resoak after making.
cheeks could be 1/4 ply ,epoxy soaked with a strip of SS packaging
strap on each side to take the weight. that stuff should hhold 1000kg
cost would be in the region of $2-3 per 3" block!!!
Hmmm , Paul