Re: Slic3r adding unnecessary supports
If you tell Slic3r to only support from the build plate, it will build towers so the supports are only from the build plate.
If you want Slic3r to support inside the holes, you need to UNSELECT the support from build plate only.
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Re: Slic3r adding unnecessary supports
It is un-selected.
Re: Slic3r adding unnecessary supports
I had the same problem. Just play with "Pattern Spacing" (for example 3 mm instead of 2 mm). This fixed it for me.
Re: Slic3r adding unnecessary supports
Thanks for the idea. The higher numerically I go I get more supports on the outside. If I go down to 1mm I get fewer but they are also gone from the holes! The area that actually legitimately needs the supports.
Re: Slic3r adding unnecessary supports
Update: If I go down to .05mm on pattern spacing I get supports in the holes and a minimal of supports on the outside where there should not be any. So that is doable maybe.
Re: Slic3r adding unnecessary supports
Yes... I know, it's very individual from object to object and no "ideal" solution. More "try and error". But if you found the right number it should work with no supports outside. But maybe someone else have a "more professional" solution?
Re: Slic3r adding unnecessary supports
Bump
This is kinda silly, I have trouble getting the supports I want as well. In other packages, something like "support horizontal inflation" would be the setting I'm looking for.
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Re: Slic3r adding unnecessary supports
I don’t know if it’s really helpful, but for making supports (and only for the supports, rest still with slic3r) I switched to Meshmixer http://www.meshmixer.com .
It’s free, quite easy (thanks to some youtube tutorials like this: ) and so much more powerful for making supports! You even save a lot of material. So I just can say: give it a try.