Why is there a top solid infill and bridge infill created for this basic STL file in Prusa Slicer?
 
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Why is there a top solid infill and bridge infill created for this basic STL file in Prusa Slicer?  

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Procurement R
(@procurement-r)
New Member
Why is there a top solid infill and bridge infill created for this basic STL file in Prusa Slicer?

rivet 3d updated format.stl

The above is the STL file.

Here is how the STL looks (you can see a hole in the middle).

Here is how the slicer version looks (you can see a hole in the middle is now filled).

Essentially we don't want the hole to get filled by top solid infill and bridge infill (the bridge infill is at the bottom, and not visible in the above screenshot).

We have tried to repair the STL file, however the results are no different.

Help here will be greatly appreciated! 😀

Posted : 28/12/2020 9:29 am
fuchsr
(@fuchsr)
Noble Member
RE: Why is there a top solid infill and bridge infill created for this basic STL file in Prusa Slicer?

Broken STL. Prusaslicer shows 315 errors, 3 shells. When you run it through Netfabb it just makes it solid. You'll have to repair it in a tool like Meshfinder.

Posted : 28/12/2020 1:07 pm
towlerg
(@towlerg)
Noble Member
RE: Why is there a top solid infill and bridge infill created for this basic STL file in Prusa Slicer?

The STL does have errors but even after repair it still fills in the hole between the two overhangs. I tried a support blocker, no luck. I tried putting the "repaired" file into Cura, he balked saying the the file was not manifold. Unless somebody has a better idea, I'd create a new STL. If you're CAD challenged, provide the dimensions and some kind soul will step in. BTW do you need the overhangs?

Edit. Tried fixing the STL in Cura, no luck

 

This post was modified 11 months ago 2 times by towlerg
Posted : 28/12/2020 1:23 pm
Swiss_Cheese
(@swiss_cheese)
Noble Member
RE: Why is there a top solid infill and bridge infill created for this basic STL file in Prusa Slicer?

your model is actually 4 different pieces and 2 of them aren't closed, as well the parts that do have all their walls had many many open edges resulting in flipped normal's this is not a slicer problem it's a poorly constructed model.

 

I started to repair it manually but quickly realized it would be faster to model a new one.

 

The Filament Whisperer...
Posted : 28/12/2020 11:33 pm
Procurement R
(@procurement-r)
New Member
Topic starter answered:
RE: Why is there a top solid infill and bridge infill created for this basic STL file in Prusa Slicer?

Thank you all!

You’ll were all correct, it was indeed the CAD model issue!

We fixed it, and now Prusa Slicer sees it as just as we expect it with the hole in between!

Thank you all! This forum truly is very helpful and quick! 🙂

Posted : 31/12/2020 10:21 am
Swiss_Cheese
(@swiss_cheese)
Noble Member
RE: Why is there a top solid infill and bridge infill created for this basic STL file in Prusa Slicer?

I'm glad you were able to resolve your issue, and your welcome 🙂 

The Filament Whisperer...
Posted : 31/12/2020 3:25 pm
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