Velcro support Disc
This support disc keeps all the abrasive and polishing materials with a velvet backing excellently fixed. The disc has a diameter of 125 mm and can run up to 8500 rpm. I use this disc in a hook drilling machine to sand with the Hermes longlife sandpaper. I made the diameter of the disc slightly smaller. The disc has a layer of 10 mm feeble material between the disc and the sandpaper. (The red part) The disc comes with a 10 mm recording shaft. The shaft sits with a screw thread M14 in the disc.
In the short movie at 1 minute you can see how that barn looks like. [Embed] https://www.youtube.com/watch? v = TT87RQqesFA [/embed]