I have an object with an insulating bottom. How do I fill that gap in? I can’t use a rectangle because the gap goes above other material I need to keep.
Thanks.
Very hard to say with only your screenshot to look at. A guess would be to use Move/Copy to to create a bottom face and then stitch the top and bottom together with the Line tool. Since you are using SketchUp Free the options are limited but presumably you are doing this in a hobby capacity so time isn’t terribly important.
If you shared the SketchUp file it would be easier to give you specific guidance.
Here’s the STL. Did u mean a different file type?
The problem is I think a rectangle would not reach the top gap before starting to cut off an area that needs to stay.
blander post.stl (972.4 KB)
Yes. I meant what I wrote. Share the SketchUp file. It has the .skp extension.
Sorry, not familiar with file types.
post.skp (1.8 MB)
Is this the kind of thing you are trying to create?
If so you can do as I suggested. Open the terrain group for editing, copy the surface downward the required distance and then use the Line tool to stitch the vertices together.
I did that here and then softened the vertical edges.
What is this a model of? What’s the deal with all of those edges drawn on top of the terrain? How do you plan to use this model? For 3D printing or something else?
Yes, it’s what I’m looking for. No gaps from the base on up.
I copied and moved the terrain. Not sure how to stitch the vertices. Do I have to manually draw a line between the 4 corners?
Also, how can I be sure the copy moved is in perfect alignment with the XY axes of the original?
This is to 3D print a city.
Thanks.
Yes. you would need to do that. And possibly between intermediate vertices, too.
If you had a SketchUp Pro or Studio subscription you could use one of a few different extensions to make quick work of it with less manual input.
Lock the move direction to vertical by tapping the up arrow key.
Keep in mind that none of this stuff shown here will show in your 3D print.
Not sure I am doing it right. The copied object that I move has the same wavy bottom. Do I crop that flat?
With undulating terrain, 4 corners is not enough? How many would this take?
So once I draw the lines, how does it fill in?
Yes, I extrude this in Blender to give volume to the features. Sketchup does well to create feature layers.
Thanks.
After giving the thing thickness, you could draw a large rectangle that passes through it and use Intersect Faces and then erase the unwanted part to leave a flat bottom.
It depends on the perimeter of the terrain shape. Mine wound up with one for every vertext along the edges.
If you’ve done as I directed and opened the terrain group to copy the surface down, the faces should fill automatically as you stitch the vertices top and bottom.
Why don’t you create the volume for the terrain in Blender?