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The Tolerance of Profile produces strange value with two Datums.

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发表于 2009-11-24 10:47:31 | 显示全部楼层 |阅读模式
Look at the measures FCFPROF4 and FCFPROF7 (PDF file).
PC-DMIS it allows to insert two Datums. I have used two Datums (circles A and B). Is this procedure correct?


The profile with two datums is getting a big deviation caused by "the secondary datum feature is approximately parallel to the primary datum feature , and create an  unreliable alignment with a big rotation angle".
 楼主| 发表于 2009-11-24 10:48:08 | 显示全部楼层

回复: The Tolerance of Profile produces strange value with two Datums.

"Customized DRF" seems to solve this issue.
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