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Dimensioning to projected points

Dimensioning to projected points

Dimensioning to projected points

(OP)
I am trying to dimension a drawing to the projected intersection of two angled surfaces that have a radii between them.  How do i do that?

 

RE: Dimensioning to projected points

You can dim to the radius and change it to "max" to dim to the outside, which will give you the intersection. Unless you mean something else like more than one radius (radii is more than one).

Chris
SolidWorks/PDMWorks 08 3.1
AutoCAD 06/08
ctopher's home (updated Apr 30, 2008)

RE: Dimensioning to projected points

(OP)
Chris
If you have two angles coming together, the projected apex of the two angled surfaces does not equal the max value of the radius dimension as you described.  

Any other thoughts?

RE: Dimensioning to projected points

ctrl select the two lines, the click on the sketch point tool. This should give you the intersection of the two lines and you'll be able to dimension to the point.

Jeff Mirisola, CSWP, Certified DriveWorks AE
http://designsmarter.typepad.com/jeffs_blog
Dell M90, Core2 Duo, 4GB RAM, Nvidia 3500M

RE: Dimensioning to projected points

Oops, sorry. I was thinking of something else.banghead
Jeff has the correct suggestion.

Chris
SolidWorks/PDMWorks 08 3.1
AutoCAD 06/08
ctopher's home (updated Apr 30, 2008)

RE: Dimensioning to projected points

possibilities...

  • If radius is result of fillet feature, move your fillet below the sketch in the feature tree
  • If surfaces are planar, create an axis at their intersection
  • If surfaces are not planar and radius is result of fillet feature, create a 3D sketch just before fillet to copy edge/intersection of surfaces
  • If surfaces intersect sketch plane, use Tools --> Sketch tools --> Intersection Curve to bring surface intersections into sketch.  Place point at intersection of those curves

batHonesty may be the best policy, but insanity is a better defense.bat
http://www.EsoxRepublic.com-SolidWorks API VB programming help

RE: Dimensioning to projected points

(OP)
Tick
I am trying to dimension it in a 2D drawing.

In this case the 3D model has a fillet created by the fillet feature.  So which method do you recomend.

The method Jeff descibes seems to work but it leavea a point on the drawing.

RE: Dimensioning to projected points

My methods were for part not drawing.  Sorry.

In a drawing, you should have something to show what dimension is attached to, usually witness lines.  There are different options for how an intersection point ("virtual sharp" in SW parlance) appears in an SW drawing.  Look at the document options under "Virtual Sharps".

If you're determined to hide the point, put it on a layer and make the layer invisible.

RE: Dimensioning to projected points

Just make a sketch that puts a point at the intersection of the two lines.  Then dimension to it.  The point will not show up when you print it even if it isn't hidden.

Ideally you would sketch two lines showing the intersection and how the dimension is generated to that intersection, but sometimes that isn't possible.  We would then add T.S.C. to the dimension, indicating To Sharp Corner.

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