On Monday 13 October 2014 07:35:46 andy pugh did opine And Gene did reply: > http://www.geutskens.eu/neracar/images/PPL/6-Engine/6-Foot%20Starter%20 > Assy/03-620-Locknut,%20Magneto,lv-gec.jpg > > I am struggling to come up with a plausible setup to machine a few of > these. (It is a Ner-a-Car starter clutch). > > I have a CNC mill with a tilting 4th-axis and also a swivelling head. > I suspect that the ideal tool would be a very shallow-angle dovetail > cutter.
I think, if I had the horsepower, that I'd use a fly cutter with a jack under one edge of the 4th axis to cut the tops of the ramps. But I don't fool myself as to the horsepower available in my toy. For me it would take longer but a 1/4" 2 flute could do the ramps with the jack under the 4th axis to get the tilt. Or it could even be done laying flat with the appropriate gcode as a path up and down the ramp at millimeter spacing would not leave an unusable roughness to the finish there. Under those conditions, rather than the 4th axis, I think I would rotate the co- ordinate map to do each 'hook' & re-use the same code. Its far tighter than my 4th axis anyway. Machining the spanner wrench notch would be a stand it up in a vice operation, NBD. I can't see the bore, so I have no clue but I can't believe that would be a problem for you. Given some 5/8 or 3/4" stock of suitable width, I think I could make a serviceable copy on my machine. But ATM my heaviest stock is too thick at 1" x 2" wide, not wide enough. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS ------------------------------------------------------------------------------ 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
