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I think this is an ingenious design for a clutch. The only issue with it that I see is that while it may be great for 1" diameter shafts and larger, it would be incredibly difficult to miniaturize it to work on a 3/8" shaft like most of my engines have. True, most of the components are simply "turnings" that would present no difficulty to miniaturize, but the comma shaped pieces would get so small I don't think I could machine them accurately. Too bad, because it is a really slick design.
Alan--It's okay---I'm going a bit mad these days. I don't have any real design work, I'm waiting for all my authors to publish something new so I'll have a good book to read. My yard-work is all caught up, and I'm too old to drink whiskey or chase women. I did have the only other model engineer in Barrie over for a couple of hours this morning and we sat and talked machinery and told lies to each other for a while but he's gone home now. I may build this clutch, #1-Just to see if I can, and #2-to give me something to do other than watch the idiot box.---Brian
what does the spring do does it not give some compressibility and give to control pressure on the clutch facing?