I'm very interested in this thread and the suction funnel. I'm scheduled to pick up a Fortschritt (Has 2136 with Germany on a Tag, could be a inventory tag) in Mid January. It's being stored in a warehouse until I am traveling a couple of hours from the warehouse, so I can't get any measurements at this time. I will have to remove the skiver from the worktable to fit it in my Outback so I'll be able to get lots of measurements once I get it home.
You do amazing work with the ways you come up with solutions to problems and ways to improve production and use of machines and processes. Thank you for being so willing to share and utilize those skills for others.