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  1. thepete

    multi segment question

    My memory clearly sucks on this matter, I'm going to study this a bit this weekend. I'll leave you with a picture with a few refinements, and showing both a composite and two-single segment tolerance. 3ddave, I get your point about the angle. you've convince me that adding A to the segment is...
  2. thepete

    multi segment question

    Not that I don't appreciate the other insight, I do, but intent of the original post seems to have been lost - except for 3DDave, whose post I'm still taking in.
  3. thepete

    multi segment question

    You guys got a bit off the question. I have good answers for most of them, excepting maybe the lack of hidden lines (sorry). But at the risk of getting further off topic, can we stick to the intent of the original question? Does the feature control frame do what I want?
  4. thepete

    multi segment question

    I have a disk with 5 holes in it. The hole center is sloppy big, and largely uncritical. The 4 tapped holes, I want located around the center hole. The tapped holes are not critically spaced to the center hole, but they do need to be critical in regard to the 4 holes in the pattern. (ie, the...
  5. thepete

    Calculating surface profile Cpk

    I'm with Tarator; why bilateral? Your intent is to compare the limits to the observed variation, yes? If I was worried about the profile as a whole, then I'd use all 768 data points together in your calculations. If I was worried about the four inspection points individually (probably to hone...
  6. thepete

    Assembly drawing question - multiple versions

    Checkhater, I agree, though my colleague does not. She thinks they should share the same find number (so I'd have two item 9's and two item 10's on the list above). Assuming that I used two different find numbers, should i put both #'s in the same bubble (9,16) as I have above, or two...
  7. thepete

    Assembly drawing question - multiple versions

    Drawoh - I'm a Solidworks user, but still on 2011. Below is a heavily redacted version of a similar BOM. (different parts, same problem).
  8. thepete

    Assembly drawing question - multiple versions

    Good questions. 2 BOMS Each BOM has a different part number xxxx-GL & xxxx-BSP The M6 and 1/4-20 screws both have individual part numbers. Same for the washers. There is a BOM, and I do want it to have each (US&Metric) part numbers listed. The BOM will have two columns identifying the...
  9. thepete

    Assembly drawing question - multiple versions

    [/URL]] What I have is two assemblies that share the same assembly drawing. The difference is the tapped hole. Assembly A uses a 1/4-20 bolt and washer, Assembly B uses an M6 bolt and washer. So I'm looking at y14.34-2008, specifically around figure 4. On one hand, it says every item...
  10. thepete

    help defining tube assembly

    Wouldn't you want a projected position tolerance to the ends of the small tubes? That would keep the small tubes from skewing off at angles, even if they were positioned correctly at the weld. Go easy on me, I'm still learning this stuff too. -Pete
  11. thepete

    ROUNDING OR NOT, DIMENSION, TOLERANCE

    Although I agree that it is bad, here's a different way to look at it. If the spec has 3 decimal, why are you inspecting to 4? And if you moved to a less accurate 3 decimal measurement, wouldn't you effectively be rounding down? [banghead]
  12. thepete

    Position tolerance, Double-D Hole

    To pmarc's points - this tab (bottle opener?) gets welded into a frame, rather uncritically. The hole location isn't that critical either... The Double-D itself is an anti rotation mechanism (for a fire hose fitting that I am concurrently working on) - so the hole itself is the only real...
  13. thepete

    Position tolerance, Double-D Hole

    I'll have to make a point to follow this forum more. I think I'll learn a lot.
  14. thepete

    GD&T Question

    (I reposted to the GD&T forum, thanks guys).
  15. thepete

    Position tolerance, Double-D Hole

    See picture above(which hopefully posts) I'm trying to use GD&T (Y14.5-2009) to tolerance the flats of the D-hole. What I'm trying to describe is the flats centered on the 1.125 diameter hole. I also have to do something similar with the shaft that fits through this hole. Position tolerance I...
  16. thepete

    GD&T Question

    KENAT, Thanks for your input. I saw the GD&T right after I posted, but I figured I'd get more flack for double posting than being in the wrong place. I'm working off Y14.5-2009. I see what you are saying about not assuming parallelism... If I had dimensioned one of the flats to datum B...
  17. thepete

    GD&T Question

    It has been suggested to me elsewhere that adding a basic dimension from the center to the flat. What do you think? I guess I could add a parallel to B control, but it seems sufficiently implied and defined in the position control with B referenced as a third datum - and is frankly not that...
  18. thepete

    GD&T Question

    http://i.imgur.com/VZW6KWA.jpg[/IMG]] See picture above(which hopefully posts) I'm trying to use GD&T to tolerance the flats of the D-hole. What I'm trying to describe is the flats centered on the 1.125 diameter hole. I also have to do something similar with the shaft that fits through this...

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