On 3 January 2013 13:38, John Prentice (FS) <[email protected]> wrote:
> If you turn the OD and bore the ID of your adaptor then the straightness of > the arbor is probably a bigger error than your adaptor's concentricity. I > don't think the keys matter that much - unless I misunderstand the question. I rather imagine that the keys provide the cutting torque? Any slippage with a gear hob would be a problem. I don't really think that 1/8" wall thickness is enough for both an internal and external keyway (even if staggered), so I was thinking that the external key would need to be integral to the adaptor. But that would have to be milled, which means a change in setup. (and my rotary axis is not particularly good) This picture gives me an idea, though: http://www.ebay.com/itm/MILLING-MACHINE-ARBOR-ADAPTER-COLLAR-SPACER-1-x-1-5-8-x-2-long-9482-/181053049758 I actually have a spare arbor (MT2, and so no good to me) with a set of spacers. I can machine a step on two of the wider ones, and use a super-thick key. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
