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Recent content by uptick

  1. uptick

    Datum Callout

    PaulJackson. Great post. Thanks.
  2. uptick

    Datum Callout

    Thanks drawoh. Looslib. That is exactly what I have in mind to tell him. But I am not sure his way is correct. Thanks.
  3. uptick

    Datum Callout

    A throttle shaft with two tap holes for mounting the throttle plate. Let put the shaft horizontally (left to right), draftman draws a vertical line between & midpoint of these two tap holes and calls it a datum A. He then make a basic dimension from this datum A (this vertical line) to one tap...
  4. uptick

    True position callout

    Unless I miss reading the posts, I have not seen a direct answer to the question I posted . Per the sketch I sent earlier, my question really is: 1. Can the hole in the left completely shifted vertically from datum B, but still meet pos|dia.00x|B-C| as required? 2. How to correctly establish...
  5. uptick

    True position callout

    fsincox, I have a page (pg 5-117) from Global Engineering Document, tenth edition 2000, dimensions & tolerances where it has both run out & cylindricity callout. Datum A-B where one is to itself. See attachment. My previous question is the TP to B-C where C is...
  6. uptick

    True position callout

    Thanks everyone for the comeback. A> pmarc: So the 2X on the B datum side with the TP callout will cover the other bore (other side)without repeat another TP callout? Y/N? Let assume that the drawing with the same callout as the sketch has already been released, questions: 1. How to check...
  7. uptick

    True position callout

    One more try. Sketch is attachedhttp://files.engineering.com/getfile.aspx?folder=4d34e236-d629-4325-8b83-93b68b69d943&file=20100823115656927.pdf
  8. uptick

    True position callout

    Thanks PeterStock. Here is the sketch. I just want to know if the callout is correct? or do we really need datum C & the TP of .003" to B-C? Your opinion would be appreciated. Uptick.
  9. uptick

    TP callout for two bearing counter bores

    Here is the sketchhttp://files.engineering.com/getfile.aspx?folder=3080c1e9-953d-41ca-acd9-55175d62c6f9&file=20100823115656927.pdf
  10. uptick

    TP callout for two bearing counter bores

    Sorry ewh. I did post overthere after finding out the correct location.
  11. uptick

    TP callout for two bearing counter bores

    Hi all, Sorry. I posted in the wrong place before I posted this here. Mike: The datum A (the shaft thru hole) is already tight to the butterfly bore which I did not present here. Now the issue is the bearing bores are controlled the A. I wont to know if the callout is correct (valid). I know...
  12. uptick

    True position callout

    Hi there, I need your opinion on the case below: Problem: A buterfly valve with a shaft goes thru both side of the wall. Each side has a bearing bore callout. 1. The hole for the shaft is a thru hole with diameter A +/- tol with a datum A callout. 2. The bearing bore on the right states 2 X...
  13. uptick

    TP callout for two bearing counter bores

    Sorry. The datum B callout is missing in the bearing bore on the right (item 2. Hope to hear from you soon. Thanks Uptick
  14. uptick

    TP callout for two bearing counter bores

    Hi there, I need your opinion on the case below: Problem: A buterfly valve with a shaft goes thru both side of the wall. Each side has a bearing bore callout. 1. The hole for the shaft is a thru hole with diameter A +/- tol with a datum A callout. 2. The bearing bore on the right states 2 X...
  15. uptick

    Tamper-proof Screw

    Thanks all. Mikethe Engineer: I did check the co restroom before posting this. Thanks unclesyd: I had been thru those webpages before posting. Thanks Metalfixer: Good! I can start from there. Thanks.
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