You asked for help with this exact thing over on the SketchUp Community Forum and I gave you assistance there. This is the sort of thing you said you wanted.

Screenshot - 8_11_2022 , 8_53_37 AM.png

You claimed that helped. If you can't do it yourself, you can hire me to do it.

You are still using SketchUp Make for your business which violates the terms of use.

What are you doing with the section planes in your model. Section planes don't actually cut through the model. It's more like an X-ray imaging of a body.

What do you mean by "I don't seem to be able to export a section view of my model that has multiple groups with any accuracy"?

It would help if you'd upload an example SketchUp model file so we can see what you are working with.

What version of SketchUp are you using? Your profile says 2018 Free/Make which is impossible as there never has been a version like that.

@just4lynne said:

...So How did you get the circle drawn at the Axis ?

Hi - select the circle tool and place your cursor near the origin point. The Cursor will now snap to the origin.
Now please "play" with the 4 cursor arrows on your keyboard. The circle tool will then show up in your desired orintation color (for example red)

cursor arrows.jpg

@annanikolson said:

Hi guys. I'm new to the forum, but I already have a little experience with sketchup. My question is probably more practical. Will it be convenient to use sketchup in the development of 3D models for a 3D printer? I recently bought it, and now I have a question - should I continue working in sketchup or master some new program like 3dsmax.

I just read several articles about 3D printers, about their device, about nozzles, filaments and much more. But I don't have a clear understanding if I can continue working in sketchup normally, or will it be a "pain"?

I have been 3D printing already 3 years and I am using pretty much only Sketchup for modeling the 3D printed parts. Sketchup works really well if you plan to print functional parts. In some cases I have been using some other 3D modeling software but this has been mainly when I have downloaded some parts from Thingiverse and I have needed to make some modifications.

Only one I knew is SketchUcam. Sorry, not much else to add.

SketchUp is a poly modeller so TRUE curves aren't possible. You will always fight against segments causing facetting.

I believe SketchUcam's extport to g-code was quite adequate on flat sheet cuts. But 5-axis stuff could be a bit of a stretch.

Just a quick tip without trying the file.

If I am not able to solve the "solid problem" with Solid inspector I always quickly export the STL and open it with 3D Builder (Microsoft Windows free app). When you import the model into this app it says that the object is not a solid and there is single click option to make it solid. Then just Save it as STL or 3MF.

https://www.microsoft.com/en-us/p/3d-builder/9wzdncrfj3t6?activetab=pivot;overviewtab

You were created a few years before that and you appear to still function.
I don't understand what you want to know. The extension works and is compatible with older and newer versions of sketchup.

A little more accurately, move the top face to set the beginning tangent of the curve, like you've shown.

Screen Shot 2021-02-15 at 11.25.10 AM.png

Maybe by changing sketchUp model, you can get a white background directly?

You can try extensions such as TIG's Solid Solver and ThomThom's Solid Inspector2 and CleanUp3 however if your model is as much of mess as you imply, they will likely not be able to fix everything. Probably there will be things that will require human decision making to repair.

It doesn't help you now but if you know that a 3D printed model will be required it would be best to model that in mind from the beginning making sure that all bottom groups and components are reported as solids. Solid groups and components tend to be cleaner and are easier to work on so there's additional benefits to making solids from the beginning.

You don't have to collect all of the groups and components into a single solid for printing, either. As long as all of the objects are solids, it should print fine.

One thing I find useful is to set the model units to meters and model in either inches or millimeters as needed. So if I need something to be 6mm long, I model it at 6m long. Since .stl files are unitless modeling in meters is not a problem. Export the .stl file in meters (model units) and import it into the slicer software as millimeters or inches as appropriate. Working in meters will allow you to increase the number of sides for circles and arcs. Keep in mind there's no point in overdoing the number of sides you choose.

Example: This was modeled at 63.5 meters tall. Imported into the slicer at millimeters and presto!
Screenshot - 1_13_2020 , 1_12_09 PM.png

By the way, your profile says you are using SketchUp 2019 Make which does not exist. Which version are you really using? That information is useful to those who would try to help you with your questions.

It worked quite well thank you very much. I kne the +/- was good for both plus and minus somehow 😛

Hope all is well!

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