Component created from truncated cylinder not showing volume

I’m using SketchUp free version and I am a beginner. I placed a circle and then extruded a cylinder. I then angled the cylinder to 60 degrees relative to the red axis using the protractor. I then used the section plane to truncate the cylinder at an angle. Afterwards, I selected everything using the cursor and dragging. All items appeared to be selected. Then I created a component. However, in entity info, the volume of the component is not shown. I did notice that the component included the very top circle of the original cylinder, so I deleted it. Still the volume does not show. Does the use of section plane preclude sketchup from being able to calculate the volume? Maybe I needed to deleted the part that the section plane cutoff? Any help would be appreciated. Thanks.

The lack of a volume figure indicates the component you created is no a solid. There’s either stray edges, missing faces, or internal faces in the component. Exactly what the cause is in your case is impossible to say with only the information you shared. Upload the SketchUp model so we can see what you’ve actually got and help you sort it out.

Section planes do not actually cut geometry and so even if you have a solid, the voluem shown would include the part hidden by the section cut.

This is my first time attempting to upload. I created a link and here it is:

That’s only a viewer link. Download the file to your computer and drag and drop the .skp file into a reply.

Transition Zone.skp (215.2 KB)

That worked.

So you are missing the top face of the cylinder. This prevents it from being considered a solid and thus has no volume.


Open the component for editing and use the Line tool to trace an edge of the top of the cylinder to get a face. After that, when you select the cylinder component Entity Info will show it as solid and there’ll be a volume.

Again, the section plane doesn’t really cut the component so the volume displayed will include the entire cylinder whether or not the section cut is shown.

If you want the volume of just the part of the cylinder below the section plane, edit the component and remove the top part of it.

I don’t understand. Firstly, editing the component doesn’t show me the entire cylinder before I sectioned it. Secondly, what do you mean by trace the edge of the top of the cylinder. Do you want me to trace around the circle. Won’t that be very clumsy. I’m using the free version, so maybe I don’t have access to some features??

Turn off the section cut and you’ll be able to see the entire cylinder, or what there is of it.

[quote=“rdemyan, post:8, topic:281404”]
Secondly, what do you mean by trace the edge of the top of the cylinder.[/quote]

Use the Line tool to trace an edge segments at the top of the cylinder.

No! Only one edge segment.

It would be clumsy to trace around the entire circle. That’s not what I told you to do, though.

You don’t have access to some features but you have acess to these tools. They are vary fundamental things.

cyl1

If, what you want is a cylinder cut off at an angle as you are trying to do with the section plane, you should model it that way. As is written twice already, section plane doesn’t really cut the geometry so it isn’t creating your truncated cylinder.

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As a beginner I am really struggling. I can’t figure out how to turn off the section plane; right clicking the section plane does not give any options to turn it off. I thought maybe its because it is part of a component. So, I tried to figure out a way to delete the component, but I can’t figure it out. Would you please insert your file into a reply, so I can work from that. Thank you.

Watch the gif in my previous post.

Thanks. I got it to work. The only significant difference was that the circle did not delete with the face after the explosion. After the circle face was deleted, I had to delete each of the segments on the circle individually (I didn’t count but there were probably 24, since that is how the circle was created).

You could have double clicked on the face of the top circle to select the face and its edges, then press delete.

It sounds like it would help if you would get a lot out of the tutorials at learn.sketchup.com

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