Is there a way to vary the minimum perimeters (vertical shells) between the external faces of a part and internal features.
I have a part that is essentially a rectangular block with a hole in it - I desire the perimeters around the hole to be at least 5mm, but I do not want the perimeters along the outside of the part to increase to 5mm, I want the outside face perimeters to be about 2mm. Is there any way to do this in PrusaSlicer?
RE: Is there a way to vary the minimum perimeters (vertical shells) between the external faces of a part and internal features.
Yes use a modifier mesh. This is basic info covered in the knowledge base. https://help.prusa3d.com/article/modifiers_1767
Also while the search function on the forum is bad enough to be almost practically non existent, google with the site keyword does a good job of finding previous posts about topics. For example "site: https://forum.prusa3d.com increased perimeters" gets you quite a lot of hits.
for example - https://forum.prusa3d.com/forum/prusaslicer/locally-increasing-wall-thickness/
RE: Is there a way to vary the minimum perimeters (vertical shells) between the external faces of a part and internal features.
Use a modifier for this.
Create a cylindrical modifier, and apply a higher perimeter count to the modifier. Scale and move the modifier to encompass the hole plus the extra diameter for the extra perimeters. Optionally, once orientated properly, you can sink (or scale) the top of the cylinder (and/or bottom if the hole is on the bottom of your object) to 1 layer below the surface of the object so you won't see the extra perimeters on the surface of your object.
To demonstrate, I created this quick little demo project. BlockWithHoles For reference, this block is 20mm tall, each of the holes are 10mm in diameter. The two blind holes are 10mm deep (one from the top, the other from the bottom).
See my (limited) designs on:
Printables - https://www.printables.com/@Sembazuru
Thingiverse - https://www.thingiverse.com/Sembazuru/designs