Hi Everyone! I’ve been printing for about 4 months so I admit to being fairly new to this but most problems I have solved without help. This one confounds me.
I’m printing dividers for a storage box…I’ve attached 4 pics. Two from the Prepare view in Bambu Studio and two from the Sliced view. You can see the huge difference in the design after the slice. I can’t seem to get supports to generate because it’s NOT an overhang until it slices. (ignore the color change, I was just trying to see it better, it’s the same object)
Any idea what’s going on here?
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Are you trying to get that small area circled to generate supports? If so you can paint that area to generate supports?
How thick are the walls of the divider?
I can’t see the layer lines in your screen shots, but it looks like the whole thing is raised on narrow strips? E.g. the stuff in the red circles:
So it seems the outer wall of your model is not going all the way down? Something fishy is going on with your model, I would say…
Yes that’s exactly it. BEFORE slicing there are no narrow strips showing. If I go into paint supports…there’s nothing to paint, no overhang there. It’s showing as the bottom surface. Then I slice it and it looks like this.
It’s showing two wall loops.
Perhaps try to the “repair” function. This often resolves the issue.
Also enable “detect thin walls” in the strength tab
Ok this worked…sort of! Detecting thin walls at least made me see the problem. Apparently the edges of this model in some places are sloped instead of flat. With the detect thin walls setting I was able to paint supports where it refused to put them. I think we’re in business now, thank you so much!
Perfect,
Did you design the model by yourself or have you downloaded it?
It’s a download. One of the Bambu spare parts boxes. Definitely think these dividers could have been designed better for printing but I got it done in the end. 
With Tree supports i had this issues almost every time , unless you use manual and paint where you need the supports will not work . I think you can use auto , and on top of that paint parts where you need supports
Also play a bit with strong or hybrid Tree support and etc
Or just manually paint the where you need the supports , and you can highlight different degrees to easily identify where you need to paint or fill support
For quite some time i switched back to Normal supports and no issues there