[Ün...] Posted November 15, 2019 Share Posted November 15, 2019 Hello to everyone, how to measure the SZ and CZ symbols shown in the pictures below. Can you explain. What I understand from the pictures is that one of the holes is one by one and all the holes are like one hole? Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/ Share on other sites More sharing options...
[Cl...] Posted November 15, 2019 Share Posted November 15, 2019 "CZ" means common zone, or coplanar. Normally I think its an ISO standard? This is placed in a geometrical tolerance frame to indicate that two or more features have to satisfy the requirements of a single tolerance zone. I don't know what "SZ" means. Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/#findComment-93510 Share on other sites More sharing options...
[Ke...] Posted November 15, 2019 Share Posted November 15, 2019 Please sign in to view this quote. "CZ" (Common Zone) is ISO, for sure... so I'm guessing "SZ" is also, but I have *never* seen it before, and I can't find anything on it Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/#findComment-93512 Share on other sites More sharing options...
[To...] Posted November 15, 2019 Share Posted November 15, 2019 If I remember this right CZ is combined zone now. Used to be common zone. SZ is section zone. Never used it myself. Maybe it could be something if your slot isn't the same size in top and bottom. So any section you measure should be with in position tolerance. How it differs from not using SZ I really can't tell. I have only seen SZ with profile. There could be an example in the ISO standard. I can look on monday. Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/#findComment-93514 Share on other sites More sharing options...
[Ri...] Posted November 15, 2019 Share Posted November 15, 2019 SZ is "Separate zone". It is referenced in E ISO 5458. Since it is True Position of 12 holes, the SZ means that the holes have no relationship to one another. You would do 12 True Position characteristics. If the CZ symbol was used, you would be required to perform a best-fit position. Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/#findComment-93516 Share on other sites More sharing options...
[Si...] Posted November 16, 2019 Share Posted November 16, 2019 Since we are talking Symbols.. How would I evaluate this : I 1.5mm Dia (P) I E I D I F I So its a 1.5 MM Diam Projected to 3 datums.... Would that mean I have to create a Projection of the Diam up to datum D to have them be somewhat on the same Plane? Then use that Projection for the Position Call out? Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/#findComment-93518 Share on other sites More sharing options...
[Ün...] Posted November 18, 2019 Author Share Posted November 18, 2019 Hello to everyone, Thank you for your attention. While researching, I found that the subject was bound by ISO 1101 and 8015 standards. I'm gonna find these standards and do some research. Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/#findComment-93520 Share on other sites More sharing options...
[Ri...] Posted November 18, 2019 Share Posted November 18, 2019 Please sign in to view this quote. ISO has the invocation rule, so a reference to one ISO standard is a reference to all ISO standards. Fun stuff. Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/#findComment-93522 Share on other sites More sharing options...
[Da...] Posted January 17, 2020 Share Posted January 17, 2020 Please sign in to view this quote. And what a nice list it is -> https://www.ifgps.com/stdbydate.asp?Yea ... eSubmit=Go Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/#findComment-93524 Share on other sites More sharing options...
[To...] Posted January 17, 2020 Share Posted January 17, 2020 Please sign in to view this quote. Maybe a new post topic would have been better. Create the position characteristic as you normally would and active the P property. The projection tolerance zone is relative to the Primary datum. Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/#findComment-93526 Share on other sites More sharing options...
[Si...] Posted January 23, 2020 Share Posted January 23, 2020 Please sign in to view this quote. Thanks Tom, So if it said 1.5 (P) 2 l A l B l C then it means the length reference is 2 correct. Pretty obvious answer but figured I would ask. Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/#findComment-93528 Share on other sites More sharing options...
[To...] Posted January 23, 2020 Share Posted January 23, 2020 Please sign in to view this quote. Yes Link to comment https://qualityforum.zeiss.com/topic/16730-sz-and-cz-symbols/#findComment-93530 Share on other sites More sharing options...
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