On 26 May 2018 at 20:49, jeremy youngs <jcyoung...@gmail.com> wrote: >> I want to use one clutch and two sprags for a compact envelope 😏😏
That ought to work and might be easier to package. The one-way roller clutch bearings are pretty cheap: https://simplybearings.co.uk/shop/p558083/HF1012-Budget-Needle-Roller-Clutch-Type-One-Way-Bearing-10x14x12mm/product_info.html So arrange it so that low speed drives through the bearing, and for high-speed you engage the electromagnetic clutch and the one-way clutch over-runs, (The old three-speed bicycle hubs worked this way, which is why you can hear ratchets ticking even when pedalling) -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
