the basis of a circle (n-sphere) is a center point, and a distance from the center point. the diameter of a circle is an artifact of measurement.
the vertex of a spinning cutter edge travels around a center at some radial distance. a stationary lathe cutter has an edge vertex that moves relative to the center of rotation of a workpiece. a thesaurus suggests that tool caliber compensation could be used in place of diameter compensation. etymology suggests that a diameter is a degenerate case of a diagonal. my previous experience with cnc is that the numerical value of a D# corresponds to an unscaled cartesian distance. D means radius data, and H means length data. (X/2,Z) coordinate space still doesnt make sense to me. tangential: the axis tool table editor could be more spiffy. i dont know what is involved in creating gui components like that, but those sort of details seem to figure into alot of software development in an important way. ..design for monkey comfort. tool table entries not being in order of tool number (or pot number, or radius value, or alphabetized by color code that i always use in the comment field) drives me bananas. is there a method for making various windows remember their last sizes and positions, rather than always being in default? some of those types of things are probably dependent on underlying operating system features, ..which probably means that there are property rights problems. oy. --- On Tue, 5/29/12, John Thornton <bjt...@gmail.com> wrote: > From: John Thornton <bjt...@gmail.com> > Subject: Re: [Emc-users] cutter radius compensation versus tool table data > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Date: Tuesday, May 29, 2012, 6:22 AM > Typically inserts used in a lathe > have the nose radius measurement not > the effective diameter. So for lathe tooling you have to > double the nose > radius to put an entry into the tool table. Also important > for a lathe > is the tool orientation... > > Give the online docs about an hour to update and see if they > are less > confusing now. > > John > > On 5/29/2012 8:08 AM, charles green wrote: > > why should one linear axis have a metric that is 2x or > 1/2x any of the others, even on a lathe? > > > > --- On Tue, 5/29/12, andy pugh<bodge...@gmail.com> > wrote: > > > >> From: andy pugh<bodge...@gmail.com> > >> Subject: Re: [Emc-users] cutter radius compensation > versus tool table data > >> To: "Enhanced Machine Controller (EMC)"<emc-users@lists.sourceforge.net> > >> Date: Tuesday, May 29, 2012, 5:03 AM > >> On 29 May 2012 12:30, John Thornton > >> <bjt...@gmail.com> > >> wrote: > >>> Actually the docs should/will say Cutter > Diameter > >> Compensation to avoid > >>> that confusion. > >> Even for a lathe? > >> > >> -- > >> atp > >> If you can't fix it, you don't own it. > >> http://www.ifixit.com/Manifesto > >> > >> > ------------------------------------------------------------------------------ > >> Live Security Virtual Conference > >> Exclusive live event will cover all the ways > today's > >> security and > >> threat landscape has changed and how IT managers > can > >> respond. Discussions > >> will include endpoint security, mobile security and > the > >> latest in malware > >> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > >> _______________________________________________ > >> Emc-users mailing list > >> Emc-users@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/emc-users > >> > > > ------------------------------------------------------------------------------ > > Live Security Virtual Conference > > Exclusive live event will cover all the ways today's > security and > > threat landscape has changed and how IT managers can > respond. Discussions > > will include endpoint security, mobile security and the > latest in malware > > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's > security and > threat landscape has changed and how IT managers can > respond. Discussions > will include endpoint security, mobile security and the > latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
