It’s good that the slicer warns about floating cantilevers and floating regions.
However, these warnings do not provide enough context; in particular, they don’t tell you the layer number(s) the problems occur in, which means you have to scrub back and forth through the layers trying to visually find the issue. And of course, you don’t know how many problems there are.
The slicer has to know where the problems are, so this information should be included in the warnings.
In my case, I ran into a floating region warning that turned out to be a non-issue when printing, and it took quite a bit of scrubbing to figure out what it was complaining about.
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There are two ways to find the cantilever regions. First, you can enable support and slice your model. If you choose the “Line Type” as your Color Scheme, you can toggle the Support type on or off. That way, you’ll see what the slicer thinks needs support.
The second way to see unsupported cantilevers is to use the “Support Painting” button on the prepare screen. If you bump up the slider for “Highlight overhangs,” you’ll see them highlighted in red.
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TY for the tips, I’ll try them out next time next time I run into this issue.
However, the point remains – a warning that doesn’t provide enough information to identify the cause of the problem is just plain frustrating.
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I think I can top the weirdness factor. I have a part I print, slice it, zero issues. hit “Fill Bed with Copies”, and the 2nd to last one (long skinny parts, they end up 6 across the bed), ends up with the floating cantilever problem, but parts 1-4, and 6 are fine. Delete part 5, slice, everything’s fine. How can it be a problem in the part when it’s the slicer cloning a part that has no issues that it detected previously?
I also encountered this today and had no idea how to troubleshoot or even find the issue. Kinda frustrating.
Another way to identify these floating regions is to select the item, choose Supports Painting (nearish to the right side of the top row of icons), then slide the “Highlight Overhang Areas” slider to see the areas that may need support. It’s helpful if you use the mouse to swivel your design to see from the bottom up.