A recent video tip from Woodsmith showed a shop-made roller that attached to a workbench. I thought it was a great idea, so I built the roller but with an adjustable base, like you see here. Telescoping Base. The modification I made turns the PVC roller into a traditional roller stand. I did that by adding a telescoping base. The base is nothing more than a wide platform that has a column on it. The column receives a post (with the attached roller), and the entire thing slides up and down to accommodate different machinery heights. It works like a charm and is a great addition to my shop.