On another thread the 'best chuck' for a ShopSmith set up as a lathe is being discussed and I don't want to hijack the OP's question. Obviously some very good woodturners, like Buddy M. & Mac have used a SS as did Mel Lindquist years ago. A SS is no Erector Set or Tinker Toy. It's certainly not a Vertilathe.
I own a SS, but I don't turn wood on it. Up front for those that do, please know that I mean no pompous, condescending 'put-down' . There may be space, financial or sentimental reasons or simply just that some find their SS plenty adequate and enjoy turning on it and some may own other lathes as well. I sure don't want to light up any flames on rcw. It's
92+ F. here this morning. I'm not a physicist nor an engineer nor an expert machinist (altho I can work to a hundred thousand's ....of a yard!) but "in for a penny, in for a pound" so here goes.I don't believe that a SS has weight, stocks, bearings, spindles, rests, lock- downs or power comparable to modern single-purpose designed woodturning lathes of anywhere near comparable swing. True, a premium heavy duty scroll chuck will work well and last a lifetime, but unless it is also used on or planned for other lathes, I think a decent lever operated house-brand imported chuck is an adequate match for a SS. I'd buy one if I turned only on a SS for whatever reason. IMHO, buying a heavy, premium expensive chuck for a SS is putting lipstick on a pig. This is no insult to my SS. I like pork chops and bacon (not so much feet, chitterlins & cracklins) just that I see no need trying to make fancy gourmet dishes out of them.
Also, it wouldn't hurt me to review Fred Holder's book or similar on work holding methods. I may not need a scroll chuck for my SS after all and I sure don't need a machinist's 3 jaw or that abomination, an independent 4 jaw boat anchor.
I can't believe I'm posting this because I've long thought that #1 MT and 3/4 in. X 16 TPI spindles with decent stocks & bearings (without over aggressive cutting) were sufficient for turning most spindles and table sized platters, bowls, etc. to be used by humans. There, I've said it again! YMMV. I'm often confused, but I'm never wrong. Oh sure! Anyway, I'm willing to listen. What's your take? Mine's mostly tongue in cheek when it too hot to turn. :)
Turn to Safety, Arch Fortiter