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dbolden1-Visitor
1-Visitor
February 4, 2016
Solved

MINIMUM DIMENSION ON DRAWINGS

  • February 4, 2016
  • 6 replies
  • 4320 views

I need to define the distance between two edges.  They are both round.  I want the minimum distance and not the center to center.  How do I do this both in the measure tool and also in my drawing.  See below:


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Best answer by StephenW

Use the intersect option and the ctrl key when in dimension creation.

INTERSECT.jpg

Since it is an assembly, adding it to a sketch isn't really an option unless you are willing to add real curve geometry. Although at .002, no one would see it.  There also may be accuracy issues if the part is large and the feature is really really small.

Are you sure you are picking the right radius for the tangent dimension image, it shouldn't go to another radius, I've seen to jump to unexpected spots but never to the completely wrong radius.

6 replies

StephenW
StephenW23-Emerald III
23-Emerald III
February 4, 2016

In the measure tool, by default it will go to center-center on radii. Unclick the "USE AS CENTER" in the dialog box.

useascenter.jpg

In the drawing, in your example, I would create a dimension select the 2 radii and select tangent for both in the menu manager. It's sensitive to where you pick the radius, so don't pick to close to an endpoint.

tangent.jpg

Other methods for the drawing are to use intersect when creating the dimension (pick your radius and the centerline you have shown for each point) or to create the feature using a construction point and dimension it in the model and then just show the dimension.

dbolden1-VisitorAuthor
1-Visitor
February 4, 2016

This is an assembly.  I tried to create a dimension in the model using the tangent and then vertical options but it still places a .376 dimension to the larger dimension.  I should be getting .002.  It snaps to the tangent further up on the top radii.

When I try to dimension within the drawing it doesn't let me choose (2) entities.  Even when I hold the control key when I click the second line it wipes out the first.

When I try to do this as construction geometry it doesn't let me exit the sketch because there is no real geometry.

dbolden1-VisitorAuthor
1-Visitor
February 4, 2016

TIP CLEARANCE.jpg

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