I have a part that calls out .001 flatness per sq inch. Is there a way to call out flatness per sq"?
Flatness Question
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Originally posted by BWilliams View PostI have a part that calls out .001 flatness per sq inch. Is there a way to call out flatness per sq"?Last edited by Don Henger; 05-05-2007, 12:41 PM.sigpicRegards,
Donald Henger
B&S Micro Excel Pfx
3.5mr2 & 3.7mr3
PHH10MQ, TP20 & TP2
Country Rocks,But Bluegrass RULES!!!
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I have done that in the past. Use the past with pattern (like Don mentioned) and you can choose to take as many points as you wish in each 1" segment. Paste with pattern is probably one of my favorite options in PC-DMIS...sigpic
Xcel 15-20-10 - PFXcel 7-6-5 - Merlin 11-11-7 - Romer Absolute 7525SI
PCDMIS 2012
Windows Office XP
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I have done this in the past too. I guess I did it somewhat similar to you guys. I covered the surface with points and then calculated the complete flatness. IF the flatness for ALL points was within the per inch spec, you are sure that the part is always good! But IF it is higher than the per inch spec, I wrote a routine that took some random samples of points making up roughly a sqaure inch. I was lucky, my parts were small, so with about 10 checks, I had a good coverage. But if you have a large part, this can be tedious. Lots of constructions and output.
Jan.***************************
PC-DMIS/NC 2010MR3; 15 December 2010; running on 18 machine tools.
Romer Infinite; PC-DMIS 2010 MR3; 15 December 2010.
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Originally posted by Jan d. View PostI have done this in the past too. I guess I did it somewhat similar to you guys. I covered the surface with points and then calculated the complete flatness. IF the flatness for ALL points was within the per inch spec, you are sure that the part is always good! But IF it is higher than the per inch spec, I wrote a routine that took some random samples of points making up roughly a sqaure inch. I was lucky, my parts were small, so with about 10 checks, I had a good coverage. But if you have a large part, this can be tedious. Lots of constructions and output.
Jan.sigpic
Xcel 15-20-10 - PFXcel 7-6-5 - Merlin 11-11-7 - Romer Absolute 7525SI
PCDMIS 2012
Windows Office XP
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