Is any of the line work which is missing part of a hatch? Also, if you uploaded images of the dwg versus what you get on import, or the dwg file itself, that would help us diagnose your issue.
There are several types of entities which would be ignored on DWG import.
That makes sense that it will ignore the tabs. Unfortunately, I don’t think I can share the drawing because it is owned by someone else and was shared with me for a work related reason.
(take this with a grain of salt because surprise, this is mostly an AI generated answer from gpt4*)
You may want to copy and paste the line work from each tab into a new DWG all in one tab before importing it into SketchUp.
the "salty" part which assumes you have AutoCAD
Open the source file in AutoCAD and select the layout tab that contains the line work you want to copy.
Select all the line work using a selection window or by pressing CTRL+A.
Copy the line work using CTRL+C or the COPY command.
Switch to the model space where you want to paste the line work and use CTRL+V or the PASTE command to insert it at a desired location. You may need to adjust the scale and orientation of the line work as needed.
Repeat this process for each layout tab until you have all the line work in the model space.
I would love to but the file is not legally mine to share… i was given it by the owner for a specific job related issue and I think I need to honor that…
Fair enough. NanoCAD has a free AutoCAD LT clone that might be able to open the layout tabs and copy and paste them back into the model tab as another user suggested. Best of luck!
I am pretty sure that @Anssi’s suggestion would work better. (To be more transparent, I actually was trying to see if gpt4 could answer the question, that was mostly an AI generated response to your question)
And no, I am not planning to start spamming people’s posts with AI generated content, this was a one-time thing.
I myself would choose the CHSPACE option. You select your paperspace content, start the command and select a viewport. The objects are ported to modelspace and scaled with the viewport scale.