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    Default This problem is just bugging me it seems off.

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    This is a problem from this text book http://www.cengage.com/search/produc...09572#Overview

    It just seems off to me and I can't get started on the drawing. The slanted face with the two holes is just giving me problems.

    INSTRUCTIONS
    These problems provide you with a dimensioned pictorial view.
    Use the given information to select and draw the necessary
    multiviews and auxiliary view or views. Do not draw the pictorial view. Set up your drawings with a properly sized
    border and title block. Properly complete the information in
    the title block. Do not draw the dimension

    This is what I have so far but it just seems wrong? This is just in the "construction" stage.
    P09 - 33.dwg


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    Looking at the image I could only pick out one point that may be an issue, if you take that back edge and line it through, it doesn't line up with the front angled flange face, I would say it lines up to the back of it, which would make more sense anyway. They don't give you a thickness for that flange either, so I would guess at .31 , but you will need a side view to find the true plan thickness. It's difficult to describe (and I know nothing about engineering terms) but hopefully this image will show you what I mean - I could be wrong that's just how I read it.
    Attached Images

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    I believe there are at least 3 dimensions missing to accurately reproduce the part.

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    steven-g
    Your solution does not show 30° inclined plane.
    (or is that an image of the original OP's file - I didn't download it?)
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    The slanted face appears to have a groove in it which you don't mention. One option would be to draw that as if it were a vertical face and when completed rotate it the required 30 degrees then union it to the remainder of the 3D model.
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    Quote Originally Posted by JD Mather View Post
    steven-g
    Your solution does not show 30° inclined plane.
    (or is that an image of the original OP's file - I didn't download it?)
    Yes that image is just to highlight the comment I made, the OP's dwg file shows the top right hand corner as a point, which doesn't allow for the thickness of the upright. I didn't feel that the OP's question when viewed with his drawing warranted further comment on other items at the moment, he is doing OK so far. And was only asking about the basic plan view.

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    steven-g.JPG
    How did you determine the angle of this line?
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    This one is challenging.

    Hint: It's all about the partial auxiliary views True Size and Shape (TSS), (and assumption that that inclined feature is also .31, same as the base feature). Back in a while to show development of the solution.

    Oops, I think the designer made a mistake in location of the 1.5. The isometric only comes out looking like theirs if I dimension to the tangent with the cylinder rather than to the centerline.

    Aux Challenge.jpg
    Last edited by JD Mather; 3rd Nov 2013 at 01:46 pm.
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    Default

    Thanks guys.

    Some good help. I was not correctly "allowing" for the thickness of the slanted part.

  10. #10
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    Quote Originally Posted by jbgraphic View Post
    Thanks guys.

    Some good help. I was not correctly "allowing" for the thickness of the slanted part.
    Attach your new solution. (Hint: I'll wager that you still aren't "correctly" allowing for the thickness.)
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