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Prusaslicer manual supports not touching part  

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Mitchimal
(@mitchimal)
Active Member
Prusaslicer manual supports not touching part

Hey guys,

I dont understand what's happening here but if Iauyo generate supports they connect fine but when doing it manually the supports are floating in the air. I made and exported the part from Fusion as 3mf and the border around each part looks right but the support points are lost in space!! The part is small and delocate so I need to be strategic where I place them. If I try to add more after it's auto generated them it wont add any when I click.... Is this user error or a bug? My Slicer id new and I'm printing to a SL1S

cheers!

Mitch

Posted : 23/11/2021 4:42 am
Diem
 Diem
(@diem)
Noble Member

Possibly you have made the points too fine.  This is a variation of a common problem with the FDM printers; The minimum size that can be printed is (resin) one pixel of your screen or (FDM) one extrusion width square.

Resize the finest point of the support to:

  One pixel ALIGNED to the pixel grid

OR

Four pixels if you cannot align.

One advanced alternative option you may consider is to find the contact layer in the image stack and edit in single pixels manually.

Cheerio,

Posted : 23/11/2021 11:10 am
Mitchimal
(@mitchimal)
Active Member
Topic starter answered:
RE: Prusaslicer manual supports not touching part

 

Posted by: @diem

Possibly you have made the points too fine.  This is a variation of a common problem with the FDM printers; The minimum size that can be printed is (resin) one pixel of your screen or (FDM) one extrusion width square.

Resize the finest point of the support to:

  One pixel ALIGNED to the pixel grid

OR

Four pixels if you cannot align.

One advanced alternative option you may consider is to find the contact layer in the image stack and edit in single pixels manually.

Cheerio,

Hey Diem,

Thanks for the reply. Everything is default at the moment and this wasn't an issue with my previous prints. I'm only new to the SLA but something feels off. I can add supports to these parts but they only attach at the upper half of the model or floating up in the air. See attached. 

Posted : 23/11/2021 12:27 pm
Diem
 Diem
(@diem)
Noble Member

Please save the project as a .3mf, zip it, and post it here so we can check the settings.

Cheerio,

Posted : 23/11/2021 7:32 pm
Mitchimal
(@mitchimal)
Active Member
Topic starter answered:
RE: Prusaslicer manual supports not touching part

Ring w SLOTS

Posted : 24/11/2021 9:42 am
Diem
 Diem
(@diem)
Noble Member

Save the project from PrusaSlicer's file menu and zip that.  It will include your settings.

The file you posted includes an object that might print OK without support so the settings matter.

Cheerio,

Posted : 24/11/2021 12:33 pm
Mitchimal
(@mitchimal)
Active Member
Topic starter answered:
RE: Prusaslicer manual supports not touching part

Sorry, see attached Body1

Posted : 24/11/2021 1:45 pm
Diem
 Diem
(@diem)
Noble Member

I'm a little confused.  The objects in Body1 don't need supports - but they do not match the pictures you showed above.

Cheerio,

Posted : 25/11/2021 11:32 am
Mitchimal
(@mitchimal)
Active Member
Topic starter answered:
RE: Prusaslicer manual supports not touching part

There have been a few variations to the design since I started having the issue and I've designed my own supports in Fusion so I don't need to use them in Prusa. The parts fail without any supports as it peels off about 3/4 way through. 

I'd still need to work out why slicer is doing it though for other models as I feel like it's a bug somewhere

Posted : 25/11/2021 12:03 pm
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