OK this is an interesting one.
As you know I am vase mode. I love vase mode. but sometimes the slicers can do "strange" things to complex vase mode models. probably does not help that I am using tinkercad which can introduce micro flaws in models (that a slicer SHOULD ignore since we are talking issues smaller than 0.001mm most of the time. these printers can barely realized 0.1mm resolution anything literally the smallest radius you can form is 0.1mm with a 0.2mm nozzle.
Anyway I have this hollow ribbed fin. this is a "close" model (no inside island so no seam etc..) a much simpler model for the slicer to chew on for sure.
Anyway the TOP of the model refuses to slice properly. S3d is making "extrusions" that simply DO NOT EXIST anywhere in the model. what its doing "is not their" but its doing it anyway.
Here is the outside
See that hole on the side? that does NOT exist in any way shape or form in the model. there might be some defect but it does NOT represent "that" and here it is from the inside
See how it just erased part of the model and goes SIDEWAYS at an angle through the solid model. NOTHING is there. not like that at least.
it cropped the corner of one layer and totally bisected the next layer. this leaves either a gap or a compression in the model as it prints too high or too low as a result of the deviation from model geometry.
Now let me show you this.
PERFECTION. precisely what its supposed to do....... Seems only 3 images per post. next post