Cura: Feature Request: Brim only on inside

[Drayson80]

As we have the possibility to place "Brim only on outside", it would be great to have the opposite too...
Currently printing an RC plane, would make the life easier in glueing the parts together...

[Ando120]

Or maybe width setting for inside brim. I need only small inside brim+ large outside brim

[Ghostkeeper]

So if you load an ordinary model which has no holes in the bottom layer you just see no brim at all. I'm putting it up in our issue planner but we have to consider usability a bit, because it might be unexpected to a user that just selects "Brim" but accidentally enabled this feature that no brim appears.

[Drayson80]

Of course, it depeds on the model. if it has a solid bottom, then it is useless... but if something like a tube or a single layer wall print is required, then it is better to have a brim on the inside than outside. (easier to remove via a deburring tool than on outside).
Example: I need good adhesion AND a good outer surface at a single perimeter wall print of an RC plane (3dlabprint). Without brim, the print has limited adhesion, with brim, I have issues at cleanup and gluing the parts together...

[nickthetait]

Rather than a sub setting of brim, what if these were three different adhesion strategies? Such as:
Brim (interior)
Brim (exterior)
Brim (both)

[Ando120]

Sub setting for internal brim width will give all options (external or internal width can be 0 )

Materials with big thermal expansions need large external and small internal brim.

[Ghostkeeper]

Our project manager removed this enhancement from our planning because it was not considered important enough.

[GWRon]

So how to achieve the desired result: clean outside with adhesive brim on the inside? And nope, adding a thin 3D-model s simulated "brim" is not a convenient solution.

Cura adds so much stuff I never used and this "easy" feature (as the opposite exists already) is "not important enough"? Laughable...

[Feidias04]

"Brim only on inside" - I need this option badly now. Because I would like to use "Spiralize Outer Contour" so I cannot prepare model with my CAD. When I import this model and I would like to use "Spiralize Outer Contour", this bottom part isn't printed. But I would like to use this part - brim on inside for gluing parts together

[enVide]

WE ALL NEED IT.

[retif]

i need an option to turn on brim from both sides (for thin parts)

[Ghostkeeper]

The option to turn the brim on for both the outside and the inside already exists: Brim Only on Outside. There is no option to turn that on automatically for thin parts, because something being thin is kind of ambiguous. It's not a per-object setting either since the brim is shared between all objects within a mesh group.