Posted By Anthony Allsobrook
I have a nice 80/1200 lens in a metal cell and I have a cardboard tube about 4 inches in diameter and with a wall thickness of about 1/8th of an inch, which I wish to use for a telescope tube. It needs to be made strong, very stiff, totally waterproof and painted attractively.
I have thought of painting the cardboard with a thinned 2 pot epoxy preparation (like that used on timber for construction of boats) and then having it spray painted.
Has anyone had success with a similar cardboard tube? How did you handle it??
Yes, I know I could spend megabucks on a nice CNC metal tube but there is a certain satisfaction to be had in shoestring budgeting.