Eng-Tips is the largest engineering community on the Internet
Intelligent Work Forums for Engineering Professionals
-
Congratulations waross on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
-
holding roundness control
below is the example:https://files.engineering.com/getfile.aspx?folder=5d6fea0a-efdd-43c1-b6cf-f8465dc48c80&file=Capture_a.JPG- Paul H
- Post #13
- Forum: Drafting Standards, GD&T & Tolerance Analysis
-
holding roundness control
Can I query what was said earlier. You wrote: "the roundness tolerance cannot be > than the size tolerance so as in this example the roundness cannot exceed 2X0.013mm.” Because that is the size tolerance (0.026)." I can't see how that is true? If you look at the simple picture below: Surely it...- Paul H
- Post #10
- Forum: Drafting Standards, GD&T & Tolerance Analysis
-
holding roundness control
Thanks for the advise but I still need a couple of points clarified. In the example above the MMC for the sleeve bore diameter is 38.027 (38.04 - 0.013) agreed? If so is it fair to say that if a part was manufactured at MMC the form (roundness tolerance) would be zero i.e. perfect form. If the...- Paul H
- Post #7
- Forum: Drafting Standards, GD&T & Tolerance Analysis
-
holding roundness control
Hi, As you will see I'm no expert on GD&T but I have been involved in a discussion to try to reduce the number of concessions or scraped parts we produce as this has existed for many years as different manufacturing sites can interpret the drawing in different ways so the design intent isn't...- Paul H
- Thread
- Replies: 14
- Forum: Drafting Standards, GD&T & Tolerance Analysis
