Troubles extrusions & Proboolean

[Anonymous]

Hello Every body.
3ds max 2021

I'm trying to do something that looks simple, and that could look like a wall pierced with windows and on these openings apply a chamfer.
For that I try 2 methods.
Based on rectangle splines, I draw my outlines, and I get the desired drawing, by transforming into edith poly and extruding, I cannot have volume my just the edges.
The second method proboolén.
In both cases, the polygons don't matter how, if I use mesh cleaner it doesn't find any error, on the other hand the retropology fails and finds non-manfoid surfaces.

Do you have a good tutorial, to avoid piling up all these errors.
Best regards

[BenBisares]

Hard to say what's going wrong based on the data. Potentially it's a scaling issue where the objects are too small so the default chamfer values are too high.

Can you attach an archive of a scene that shows that problem?

[Anonymous]

@BenBisaresHello,

Thank you for your response.
You will find below 2 files in 2020-21
Inside 2 elements obtained by subtraction and the other by extrusion.
My problem is when I want to make a chamfer on the openings. Maybe I'm doing a wrong manipulation.
Yours truly         Denis

[Anonymous]

I just tried to improve my mesh. The STL checker was telling me that I had a certain number of open edges. So I edit the mesh and in the Edit geometry part, each time by selecting the object and clicking on "remove isolated vertices". I then manage to select the edges of the openings and make a correct chamfer. it still gives me a weird result and the retopology tool tells me that the mesh and not-manfold.
I do not understand why it's so complicate for a result so wobbly ?