I am building a 4x8 table and I realize I’m going to be doing a lot of experimentation as a result. I assume I will need a way to increase the rigidity of the long axis. I have seen some folks use multiple pieces of conduit as one solution and there has been talk about using 1" conduit.
Has anyone tried filling conduit with something like epoxy (maybe with a filler added)? Doing the math it seems that 3+ litres of a filling solution would be required. Would the epoxy cure properly inside the full length of the conduit? Any recommendations?