I dont think it is that tapered I think a plain endmill will be close enough specially considering its age and available tools at the time
Dave On 13/10/2014, andy pugh <bodge...@gmail.com> wrote: > On 13 October 2014 13:36, Dave Caroline <dave.thearchiv...@gmail.com> > wrote: >> The witness marks on >> http://www.geutskens.eu/neracar/images/PPL/6-Engine/6-Foot%20Starter%20Assy/02-620-Locknut,%20Magneto,rev-gec.jpg >> tell me it was not a true spiral > > Do you mean the partial polishing or the grooves in the flat surface? > > I hadn't seen the grooves before, they do suggest a milling operation > with a small incuded-angle cutter. Something like > http://www.ebay.co.uk/itm/18MM-X-30-DEGREE-INCLUDED-HSS-DOVE-TAIL-6-FLUTE-MILLING-CUTTER-MADE-IN-ENGLAND-/301237282870 > > Might do the trick. > > In practice it only needs to work, not be some idealised geometrical form. > > -- > atp > If you can't fix it, you don't own it. > http://www.ifixit.com/Manifesto > > ------------------------------------------------------------------------------ > Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer > Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports > Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper > Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer > http://p.sf.net/sfu/Zoho > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer http://p.sf.net/sfu/Zoho _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users