trlvn
Ultra Member
Do you mean you would hand scrape the mating metal parts of a Chinese lathe to get to the same or better tolerances than the experienced hands at Myford were achieving in the 1950s? A few years ago, Keith Rucker did an extensive set of videos on rebuilding an old Monarch (?) to tolerances that were as good as or better than when the lathe was new from the factory. It took an enormous amount of meticulous work to get the surfaces extremely flat, in the same plane and either square or parallel to the related mating pieces. For example the mating dovetails of the saddle and cross-slide took days of work. I don't think there is a Chinese-built lathe anywhere that would achieve that level of precision.Brand new, the Super 7 was probably better fit and finish them most Asian lathes. But as a hobbyist, I don’t mind spending time and sweat equity to get my Asian machinery up to an acceptable fit & finish. I’m not earning a living from my lathe, but if I was it wouldn’t be from a Super 7.
Modern CNC production has certainly increased productivity. One 'trained' technician can watch over a whole fleet of CNC machines. For most applications, the machines produced this way are "good enough". But I think the high-end, hand-scraped machines of yesteryear were in a completely different class.
Craig