I made a model with holes for eyes and another model to fill this holes and to be used in both single or multicolor
The problem starts when I merge both models to one - internal brige is not generated there
I know why it starts printing this part on the highier layer (it’s not adding bottom layers there because of no holes in the model) but why it’s printing in mid air without any support?
On lower part on the right there is still an internal bridge so it is generated but not under merged objects
And it doesn’t matter if eyes are highier than pig or lower on the objects list
I know I can print it splitted but it’s a workaround (and anyway it will not work with models that are not perfectly fit to each other). It’s not fixing the problem of absence of internal bridge
The model isn’t hollow so supports won’t generate inside of it. Expecting them to generate there is not how the slicer works. Using infill only adds several minutes to your print time.
The mesh around the eyes model is there in purpose and has nothing to do with internal bridges or even slicing (it is ignored by slicers)
Fixing the model adds more work when trying to position eyes right - now it’s in the exact same position as the base model
I may misinterpret the issue.
Aren’t you looking for an internal bridge below the eyes?
When I repair the eye mesh and move it again to the same place, the slicer adds a bridge below the eyes. I thought you wanted this.
Exept it doesn’t make internal bridge. I already tried it before I wrote this topic
One time it did make a small bridge under just one eye but I couldn’t reproduce it when moved eyes a little and trying to move it again to this place
BTW I’m using newest version of Bambu Studio, 1.9.3.50
I am failing to understand.
The blue lines on the picture posted are bridges and are below the two eyes.
I downloaded your model and didnt touch any setting besides repairing the eyes.
Maybe we are using different terminology. What is for you a bridge?
Are you using this 3mf on the new Bambu Studio (1.9.3.50)? Maybe here is the problem that you are on the little older version (that could also be a reason that your bridge is with one hole, not like mine on the screen of ‘split’ version)
And on your screen I can see top layers (red) wich are not shown if the eyes models are there (then it’s only outer and inner lines: orange and yellow)
If I remove the eyes it is like on your screen (exept that bridge is solid, without a hole)
Anyway thanks for answers
My workaround to avoid printing in air is moving eyes up on the objects list
Now it should be safe to print and possible imperfections should not be visible
But the problem with no internal bridge still exist
Besides fixing the model, another cause can be eye positioning. It would make sense if that would influence the inclusion of bridges.
As @JonRaymond recommended, add infill, and this issue will disappear.
Now I can see what is going on. You position eyes little highier, leaving some empty space under them
Eyes are bigger than the hole so there should not be any empty spaces (like on screen between two orange walls) there if position right
So fixing the eyes model did nothing, moving eyes up did - it may cause some problems tho
About infill, as I said it would not help much but would add more time, filament etc.
Adding some flat negative volume under eyes would do the trick (forcing the slicer to make bridges) but it’s still a workaround and after fixing the slicer it would only disturb
So now I need to wait for fixing the slicer (if some dev will read this topic)
My workaround (putting eyes highier than base model on the objects list) will work now and will work better (as intended) on the fixed slicer
edit: ‘fix slicer’ is a bad word for it. It should be improved
As I noticed: for now slicer is adding the bridge under bottom, top or internal infill lines that are in air
When using multicolor with merged models it may be there only outer and inner lines, not bottom/top
Maybe it should also detect inner/outer lines in air (inside model) when checking where to put bridges
