Hi, I'd like to weld together a stand for a halogen light for my workshop. (I find the stands that come with most halogen lights way too fragile, plastic parts, etc, yuck.) I don't care about weight, I fact I would appreciate a stand that doesn't get knocked over so easily.
My problem is finding a pipe or tube in mild steel that will "nest" in the next biggest size with say a 1/16" of play --so that my stand will have a telescoping column for height adjustment. I'm looking for a max outer dia of about @ 1.5".
I looked into EMT (electrical metallic tubing) aka thin-wall conduit but it is too thin and has too much play between the outer wall of the inner tube and the inner wall of outer tube.
I looked at black schedule 40 pipe because it's relatively cheap but it doesn't nest, very close, but it doesn't nest --at least not the stuff I found at Lowes. (No I don't have a lathe.)
I thought of trying thick-wall conduit. One-inch RMC (or RSC) will nest in a 1-1/4" (according to a table I found). But it's so expensive! --smooth bore and galvanization in and out.
What would you metal fabbers use? My ideal wall thickness would be around 3/32".
--zeb