Just went to use roundcorner yesterday and found now you have to pay for it after all of these years. So now I have paid for it and I can only use it once each time I open sketchup. If I try a second time it tells me that my "trial period expired". If I click on manage license, it shows all of my license information but I still cant use the plugin. Super annoying.

Thank you all for the input. I means a lot just to know that I am not the only one experiencing the issues. I thought I was going crazy. I dont remember having these same problems years ago. Thanks again!

@faust07 said:

Have often the same problem.
I use tt_flatten.rb (thomthom).
You'll get a new group and then have to revert faces, draw lines to generate faces and bring the textures back... (5 min)

I have another brain bender for you. Can you think of any reason why this window wouldn't close? I alinged the axis to the surface. Most of the surfaces close. When I draw lines that intersect with each other, I can trim them like they are all on the same plane, but I cannot get this window to work. Any help would be greatly appreciated.

building.skp

Awesome! Thank you faust! I was using Eneroth Flatten to plane. Not sure it even did anything. I will grab the one that you mentioned

Are you suggesting that my inability to create faces is a layer management issue?

Still the same issue. The layers are all from the autocad import from the site engineer.

@pbacot said:

It can be a mess sometimes. Is the inability to close faces the main problem you get? I don't see this much when working with irregular terrain since triangles tend to close OK. I have not imported a TIN directly for a long time, though I don't recall trouble with them. I usually :

1. cleanup (simplify--join etc.) contour lines in CAD and import to use Toposhaper in SU. Kudos to Fredo!
2. save an untouched copy of the original topo mesh in place on a separate layer.
3. Shape a "new work" copy of the mesh using Artisan, sandbox, vertex tools etc.
4. Avoid cutting the new mesh as possible, though sometimes you must for buildings, retaining walls etc. Sometimes I might join up flat geometry for excavation cuts to the mesh but not always, letting the mesh stay below hardscape models.
5. Create new ares of mesh (driveways etc.) with simplest geometry possible.
6. If I use drape or otherwise chop up the mesh for a road or something, I usually do this with a copy of the mesh offset from the main mesh (with side skirts), keeping the main mesh complete below. This helps later shaping of the mesh I think.
7. Don't sweat the small stuff. The degree of accuracy is low for contours, and for the model, and for what actually happens to grading in the field.

Look at ValiArchitects tools for some site shaping plugins.

It is an inability to close faces problem. I wish this was a terrain mesh issue, but this is just for flat planes. I find modeling terrain is actually easier. And yes, I love the artisan plugin. I use it all the time. Thank you for the suggestions.

Yes, 9 years is a long time. I am fairly proficient in the software and use it every day. I just always run into an issue with site modeling. Everytime. I usually find a work around but it is so frustrating. I have attached a site model I have been working through and a snip of a small section of sidewalk I would like to be its own face. This line work was from the site engineer and I draped it over the geo location plane. Maybe my workflow is just wrong. Research over the years has always suggested a coplaner issue but as stated, I have used plugins that are supposed to suppress all of the lines to one plane.

site.skp

Could there be anything more frustrating than trying to create a site in Sketchup? I run into problems every time and waste hours and hours trying to track down the problem and fix it. And I have been doing this and using this program for years. How does everyone else do it? If I dont have a cad file of the site I will usually use the Geo location function and just start tracing over the site imagery. Eventually I will run into an issue where lines must have gone off plane and I cant make faces. I will have to keep creating diagonal lines and make smaller faces. Sometimes when I get to the end I never find what the issue was. I just makes the last face. It is even worse when using cad linework from a site engineer. I have tried multiple plugins like Fredo edge inspector and flatten to plan. There must be a better way. I cant keep wasting time like this. Any help would be so very appreciated.

Thank you for the responses. Looks like there are some helpful plugins I need to download to assist in solving these issues. I have been using this program for about 9 years and only occasionally run into a problem like this that drives me mental. I finally decided to ask about it. Thanks for your help.