Originally Posted by RodLean
Hello, I would like to see the internal construction of this device, although it looks simple. I don’t understand the inside. Do you ever use duct tape?I was able to find a thermal insulation tube for air conditioners, I hope it is as good as the medicinal one
Hi Rod. I didn’t use duct tape on my construction because the medical grade foam tubing was a tight enough fit on the plastic rollers as is. As for the bearings, I just got some where the outer diameter was a little less than the diameter of the plastic rollers and the Inner bore of the bearings was about the same as, or a fraction bigger than, the diameter of the metal parts that clip into either end of the rollers. Then I just used a drill to enlarge the holes either end of the plastic rollers so that the bearings would slot in flush with a tight fit.