dnelson:
I have come to the conclusion that TSlots are just too expensive for the sane garage machinist. At a $1 inch retail, and even half that surplus, it would be crazy to use it in much quantity. For the same price you could have most parts machined from solid stock. Some companies use the stuff as a way to make fast prototypes or even as finished products for other companies who don't mind spending allot. Because of it's price I doubt you will ever find any in a dumpster. I am totally against trying to use this stuff now.
The new
plans I got don't use any TSlots at all. Instead they use cheap steel square tubing. Cheap is good!
Just my 2 cents.....Sam