> From: andy pugh [mailto:bodge...@gmail.com] > > On Tue, 5 Jan 2021 at 21:31, John Dammeyer <jo...@autoartisans.com> wrote: > > > Turn the inside to a predefined diameter and press in a support hub that > > has a center hole that will be used for support. > > That mirrors what I was thinking of doing, though as the part is only > 50mm diameter there is probably no need to fabricate the blank. > > -- > atp
I'd still start with much larger than 50mm and then bore the inside first to create the holder. Even if you first turned the outside and milled the teeth you then have to hold it so it _won't_ flex as designed while you turn the inside to size. You could fabricate a retaining ring that slips on just below the teeth and even over the finished teeth for the fixed steady. And then bore out the inside. After heat treating it would probably require some grinding or polishing unless you can cover it in a way that it won't oxidize. John _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
