My understanding was that grinding doesn't require wheel diameter correction because the precision grinding happens on one side of the wheel:
|____| wheel moves this way --> -----xx----------------------------------workpiece On 6/14/11, Martin Dobbins <[email protected]> wrote: > > Sherline sells a miniature version of what you are talking about, and since > they sell their CNC machines with EMC installed it's probably done with > that. There's a picture here: > > http://www.sherline.com/images/CamGrindCallouts.jpg > > and a couple of you tube videos here: > > http://www.youtube.com/watch?v=OIWyGtXEgR4 > > and here: > > http://www.youtube.com/watch?v=PlZDg0rpIi8 > > I understand Joe Martin (owner of Sherline) hand wrote the G code for this, > he might let you have it if you drop him a note. > > Hope that helps? > > Martin > > >> >> Guys, >> >> I know a guy who is interested in using EMC2 to control a cam grinding >> operation - as in automotive type camshafts cam lobe grinding. >> >> Usually a large diameter grinding wheel is moved in and out to grind the >> cam profile. Compensation for the wheel diameter is required. >> >> Has anyone ever done this before with EMC2 or otherwise? Attached is >> a diagram which is exaggerated in that the grinding wheel is usually >> much larger. >> >> A cam grinding machine looks like a lathe but the grinding wheel which >> is usually .75 inches wide and usually quite large - perhaps 12 inches >> or more in diameter and it moves in and out as the camshaft revolves to >> grind the profile. >> >> Here is a diagram that shows the wheel to cam situation: >> http://imagebin.org/158266 >> >> Dave >> >> ------------------------------------------------------------------------------ >> EditLive Enterprise is the world's most technically advanced content >> authoring tool. Experience the power of Track Changes, Inline Image >> Editing and ensure content is compliant with Accessibility Checking. >> http://p.sf.net/sfu/ephox-dev2dev >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ > EditLive Enterprise is the world's most technically advanced content > authoring tool. Experience the power of Track Changes, Inline Image > Editing and ensure content is compliant with Accessibility Checking. > http://p.sf.net/sfu/ephox-dev2dev > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
