26 Replies Latest reply on Sep 5, 2017 9:34 PM by Dave Bear

clearance dimension

what is the clearance from the edge to the 15 degree line (shown in figure by arrow)

• Re: clearance dimension

No other view?

Looks like center of top block's sketch is aligned to origin. Top view would've clarified this.

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no other view available

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Since we're assuming here, what if the opposite corner of that upper block was lying on the outer back edge of the part.  I think assuming that is was better than a tangent assumtion.

Steve C

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Therefore:

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that's only assumption.

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There is no other way to find distance there for went for assumption. It is a logical assumption. I can remember in AutoCAD drawings I made these type of assumptions.

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i'm not saying that it's not correct - might as well be that correlation, but as it is now - it is an assumption.

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Only thing is units are in INCH there for small deviation can make big difference.

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If I had to guess, I would assume the V-block is central in the unknown direction.

That is , the distance from the lower right corner is equal to the distance of the upper left corner (to the respective edges).

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While we're assuming I'll assume the OP doesn't want to ask for clarification from the instructor.

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Or.... The instructor is hiding the Top View

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You can ask instructor provided that model is given by known instructor.

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We all know that in the real world there is no way you can make any kind of assumption as to the position of that block.

If that drawing came across my desk it would go back to the designer/CAD person/ customer for clarification.

If this drawing was issued by an instructor as a modeling assignment they're probably waiting for the student to make an assumption so they can tear the student a new one!

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There are many assumptions in a drawing which has FRONT, RIGHT & TOP views.

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there's no assumptions made in my line of work, maybe carpentry there is.

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Roger Ikonen - There are a lot of assumptions on Youtube and other umptions as well

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Actually Roger,

Why you would assume that about carpentry is beyond me, but as one that use to work with wood I can say that I would apply the same logic to the problem whether or not the example was metal, plastic, wood, or whatever and that is that there is no absolute definite answer to this blocks position just from the information given.

Dave.

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Maybe in school, not in the real world!

If you want to work in the real world you're going to have to learn to make phone calls instead of assumptions.

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I little bit doubt these things because million dollar worth businesses should be done through the hard copy or digital copy not by phone calls.

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I little bit doubt these things because million dollar worth businesses should be done through the hard copy or digital copy not by phone calls.

I believe you have missed the point...

When there is a missing dimension, learn to pick-up the phone and call the designer to get a revised print with enough information to correctly manufacture the intended component.

The "pick-up the phone" part is a euphemism.

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What I like to do is take a screenshot and mark it up with your question.  Send email to the designer or whoever and have them reply with the answer.

Documented that you asked the question and (hopefully) documented when he answers.

You can never have too much butt coverage!

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During the phone call you would request the hard copy or digital copy.

The point is that when you have a drawing that doesn't have enough information you need to get the drawing clarified, not make assumptions.

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Maybe the point of this particular problem is to get the student to recognize that there isn't enough information and ask the question.

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My point exactly.

Well said!

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That's probably pretty difficult with some of these young kids...

Steve C

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"You can take a horse to water............................"

Dave.