On Sun, 12 May 2013 09:33:17 -0400, you wrote:
>I'd certainly think so. The OEM 3" 3 jaw scroll is not even a sows ear, 50 >thou or more run out, I wound up putting it on a rotary table for the mill, >where if I really want wrench flats concentric, I can program the mill to >center them. It gets used more for holding tool bits at odd angles while I >sharpen them with a diamond wheel. And in the most recent escapade, made a >pair of .0370" and .0515" allen wrenches to really fit some 0-80 cap >screws. You can't buy an allen wrench that size that actually fits them. Sieg chucks do vary. The three jaw chuck that came with the KC6 is stunningly good, at most diameters it has much less than 0.0002 run out and at worse half a thou. At 15mm it registers no run out at all :) Both sets of jaws are as good as each other and nicely ground and trued. I did originally remove it from the backplate, true that and its register in situ on the lathe, and refit then mark the body, backplate and spindle nose so I can always put it back in the same orientation. However, I've seen one on a C6 that was junk. No amount of tweaking could get it right. The thing simply wasn't concentric and was exchanged. I'm pretty certain Sieg don't make the chucks they supply but buy them in and I suspect that's one of the areas that really apply to "made to a price" and it all depends where they were originally made. Steve Blackmore -- ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
