9 Replies Latest reply on Mar 6, 2008 7:14 PM by Paul Carpenter

# Midpoint of vertical pipes viewed in elevation

I have a drawing of an assembly which has several vertical pipes that were patterned. I am trying to dimension the distance from center to center between the pipes. In the drawing the assembly is viewed from the front so the pipes look like vertical rectangles. So I would assume you just try to select the midpoint of the bottom "lines" of the rectangles (bottom edge of the pipes). But no midpoint circle (snap circle) is coming up; only the side or corner are coming up. I have seen this done before, what am I missing here?
- Thanks
• ###### Midpoint of vertical pipes viewed in elevation
Are the pipes a cylinder shape? If so you should be seeing a circle not a rectangle in the view you are dimensioning. You would need to throw an auxiliary view so you are looking straight down the tube.
• ###### Midpoint of vertical pipes viewed in elevation

Troy Spencer wrote:

Are the pipes a cylinder shape? If so you should be seeing a circle not a rectangle in the view you are dimensioning. You would need to throw an auxiliary view so you are looking straight down the tube.

Wow, thanks for the quick reply!!

Ya, they are cylinders but it is a elevation view. So like looking at a light post from the street not from up in the air. I could do a plan view but that is not what my boss wants.
• ###### Midpoint of vertical pipes viewed in elevation

Paul,

Can you insert Centerlines and then dimemension to them?
• ###### Midpoint of vertical pipes viewed in elevation
Here is an example. The dimensioning should be from the center not the edge. Further down the line the size of the pipe changes so dimensioning from the edge messes things up.

Eddie,
That is not how I have seen it done before, or he hid the center lines. But I can give it a try.
• ###### Midpoint of vertical pipes viewed in elevation

Well Paul, This is exactly what I had pictured in my mind.

So, using the inset centerline command and selecting each pipe should give you the construction geometry you need to apply the dimensioning scheme you require.
• ###### Midpoint of vertical pipes viewed in elevation
Ok, I have tried the centerline command and here is what I think should work. Make a center line on each pipe. Put the centerline on another layer. Dimension from each centerline. Turn off the centerline's layer.

Now here is an odd thing. To make a centerline I have to select both edges of the pipe. I would have thought SW would have treated it is a round section and make the center "axis" of the pipe a centerline. Is this normal or am I doing something wrong?

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Oh, never mind it is finding it as a round section now. Not sure why it was not before.
• ###### Midpoint of vertical pipes viewed in elevation

Paul,

SolidWorks has difficulties dealing with silhouette edges.

Anyway, this method should provide for your dimensioning scheme.
• ###### Midpoint of vertical pipes viewed in elevation
Solidworks should normally place a centerline automatically on a cylindrical part. Selecting the view iteself will get you centerlines in all cylindrical shapes.

Something else you might try. While dimensioning press F5 to get your filter toolbar and filter to only select the midpoints.
• ###### Midpoint of vertical pipes viewed in elevation
Good idea on the filter toolbar but it still does not find a midpoint. But adding a centerline worked. Thanks so much for your help!!! But you would think there would be an easier way to do this.