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How to create perpendicular angle dimension in drawing

nkburdick
Enthusiast
Enthusiast

How to create perpendicular angle dimension in drawing

nkburdick
Enthusiast
Enthusiast

Our Machinists would like not to have to calculate the cutting angle when looking at angles on dimensions.  Unfortunately, I can't figure out how to dimension off a perpendicular when in a drawing.  Please see attached pic.  The one that I want to do is on the right.  But all I can figure out how to do is on the left.

 

Thanks!

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jhackney1972
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Consultant

The trick to getting this angular dimension is to place a very short construction line coming up vertical off of the angle vertex.  This of course is applied in the model.  If you have trouble getting the dimension to attach, make the line longer and a regular sketch line.  After you place the dimension, you can change it to a construction line and shorten it.  The dimension extension line will follow it down.  I have attached my model for you to look at.

 

Angle Dimension.jpg

John Hackney, Retired
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nkburdick
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@jhackney1972 Thank you so much for the reply... this is perfect solution.  However, I'm struggling to view the construction line in the drawing mode.  Any tips on how to do that?  I know I'm missing something simple.

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jhackney1972
Consultant
Consultant
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I developed a screencast to document the process.  You have to place and dimension the sketch line, as a regular line, then go back to the model and change it to a construction line.  Construction lines do not appear in the drawing but if associated to the dimension before, will support the dimension extension line.  I should have done this in the first place, sorry about that.

 

John Hackney, Retired
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jhackney1972
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I forgot to mention, but you probably already know, you should place the line (soon to become a construction line) before placing the small radius in the angle vertex corner.

John Hackney, Retired
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nkburdick
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Brilliant!  Thanks!

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