Hi Dingy,
Your explanation is so clear and that is what we need. In the past, we just measured the hole only one time then hand out the reports. No detail data on top and bottom surface end of hole. Could you go for how to verify the Datum Feature C?
Thank you very much.
Hi Dingy,
Thanks for your help. It does help me out. The description you explained seems like the functional gage using. It's great help for me to catch. Per my knowledge, functional gage could be used for volumetric production but it just could judge the parts pass or unaceptable in my ideas ...
Hi All,
After we introlduced GD&T(Y14.5) into our design requirements, our traditional worst-case tolerance stack analysis can't work(Plus-Minus system is our original system). Could everyone suggest some tolerance analysis books for self-study?
Note: We are investigating to buy VSA for our...
Hi David,
Thanks for your reply. But I still have some questions in my mind. Could you have your time to take a look at the first link I cut from Y14.5 and focus on Datum feature C?
How could we evaluate datum feature C which has the position control with 0.2 parallel planes apart tolerance...
Hi David,
Thank you very much. I am done as follow.
http://www.dropshots.com/day.php?userid=177546&cdate=20060912
http://www.dropshots.com/day.php?userid=177546&cdate=20060913
The first link is about the Fig 4-15 shown on Y14.5.
The Second link is about my original question.
From 2nd link...
Hi David,
Thanks for your quick reply. I really want to attach a picture for your infotmation but I can't make it. I don't have any web server to post the picture.
---------------------------------------------------
From TGML:
Use the [img] tag to show images from any web server. Be sure to...
Hi Caseynick, Aardvarkdw,
Both you are right, it's my mistake. I think I should take a example shown on Y 14.5 to describe my problem. Please have your time to check out the Fig 4-15(Page 64) that describes the establishment of datum feature RFS.
In this picture, we could setup Datum Reference...
Hello,
If you have a part with only one datum reference frame(DRF){A,B,C}. A is a planar surface which has a form control, B is a external shaft which has a position geometric control reference to Datum feature A under RFS condition and C is also a external shaft which has a position control...
