Do away with manual alignments - use Readpoint

I hear a lot of conflicting ideas on how one should go about using read points, which leads to much confusion on which technique is correct. We use read points at my place of work and always used with CAD, and of course the read point, manual alignment or all in DCC mode. But, can anyone of you PC Dmis Gurus tell me with any degree of accuracy if read points are possible without the use of CAD and if so how would someone go about doing such?

Sometimes we get old parts with no CAD and a program has to be made and I feel that read point alignment could be very effective if it is possible. I only know if the use of such with CAD but desire to use it without CAD. So, if anyone out there could please give me some DEFINITIVE answer. I do not mean to come across so skeptical but it seems that every CMM person I have asked on different sites cannot agree on the "One best way" to use the read point without CAD. Mostly what I prefer is to G+CTL to set a readpoint then 0 out X, Y, and Z as origin (in CAD), usually inside a circle with find center on. Then I do create a plan using Auto Plane (radial), and a small line in X or Y to rotate to.....then the DCC Alignment to the CAD models FCF & Datum call-outs... So to be a little more definitive myself... can I do read points as explained above and if so would I create the read point prior to going into DCC mode or in DCC mode, which means my manual alignment would also be in DCC mode......Any info would be helpful and appreciated...

CMMGUY13

I hear a lot of conflicting ideas on how one should go about using read points, which leads to much confusion on which technique is correct. We use read points at my place of work and always used with CAD, and of course the read point, manual alignment or all in DCC mode. But, can anyone of you PC Dmis Gurus tell me with any degree of accuracy if read points are possible without the use of CAD and if so how would someone go about doing such?

Sometimes we get old parts with no CAD and a program has to be made and I feel that read point alignment could be very effective if it is possible. I only know if the use of such with CAD but desire to use it without CAD. So, if anyone out there could please give me some DEFINITIVE answer. I do not mean to come across so skeptical but it seems that every CMM person I have asked on different sites cannot agree on the "One best way" to use the read point without CAD. Mostly what I prefer is to G+CTL to set a readpoint then 0 out X, Y, and Z as origin (in CAD), usually inside a circle with find center on. Then I do create a plan using Auto Plane (radial), and a small line in X or Y to rotate to.....then the DCC Alignment to the CAD models FCF & Datum call-outs... So to be a little more definitive myself... can I do read points as explained above and if so would I create the read point prior to going into DCC mode or in DCC mode, which means my manual alignment would also be in DCC mode......Any info would be helpful and appreciated...

CMMGUY13