[Da...] Posted February 28, 2022 Share Posted February 28, 2022 Its ISO drawing If i do a Thrue Position with nominals to CAD is this ok ? And i should not use bore pattern ? I think dimensions 44 and 44 are not important for me in this case ? if yes how this should look ? I think it's not a case to use of bore pattern becouse there is no "CZ" but ... may i miss something ? Link to comment Share on other sites More sharing options...
[Ma...] Posted March 1, 2022 Share Posted March 1, 2022 CZ is not used for patterns, but for sectioned features ( aka cylinder divided by slots ). Here you have to use pattern with respect of base A,B,C Here is the norm ISO 5458 https://www.iso.org/standard/65559.html Link to comment Share on other sites More sharing options...
[Da...] Posted March 1, 2022 Share Posted March 1, 2022 Please sign in to view this quote. Damian, I this case you have Datum Reference Frame which constrains all Degrees of Freedom. The only difference you'll see if you do a bore pattern is, that you'll get 1 result (the worst). Just for the information, even if the DRF wouldn't be completely constrained, it's a bore pattern (CZ), since there is (M) in the tolerance frame. At least that's true for ISO 2692:2014. Source -> https://www.linkedin.com/pulse/individu ... 2-marczak/ For basic dimensions, the way it's shown isn't OK. You have 2 options: - add/modify basic dimensions so that they originate from datums (B and C) or - delete all basic dimensions from the drawing and add a note that basic dimensions are to be taken from CAD model. Link to comment Share on other sites More sharing options...
[SH...] Posted March 1, 2022 Share Posted March 1, 2022 Please sign in to view this quote. No basic dimensions with respect to ABC .... Wonder... Link to comment Share on other sites More sharing options...
[Da...] Posted March 1, 2022 Author Share Posted March 1, 2022 Thank you a lot Martin There is no tolerance becouse constructor forgot about it Link to comment Share on other sites More sharing options...
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