Adding height range modifier ignores horizontal shells?
Is this behaviour expected?
I'm re-slicing my models in 2.3 to take advantage of ironing. I've come across a weird behaviour when I reduce the top layer perimeters to 1 (improves the look of ironing), it removes the solid layers below it.
I've uploaded the 3mf if anyone want's to have a look. If you remove the height range modifier the expected horizontal shells return.
If anyone has any insight it would be appreciated.
Anyone? Easily replicable issue, am I just doing something out of order?
Perimeter = 1 is set only for the range from 9.8 to 10mm. Unfortunately the first gif doesn't show the top layer, while the second does. Just click on the picture to see the layers below the top one.
If you download the 3mf I uploaded, then delete the height range modifier, the top layers reappear. Wonder what else may be affecting it then!?
Driving me nuts, going to start with default settings, make the changes I usually do one by one until it happens! I love troubleshooting 😍
Ugh, think I found it... Could you please uncheck 'ensure vertical shell thickness' and see what affect it has for you? 😕
I'm having horrible flashbacks to my time as a software tester... I'm going to have a little panic attack now 😵
Right... Now I figured out what was doing it, it's a known issue.
Ensure vertical shell thickness
This function solves one of the biggest issues of older slicers, and that is having holes between the perimeters on a slanted surface. This was typical when printing busts and other organic looking models. Such objects typically had a few holes on top of the head. With this function enabled, PrusaSlicer makes sure it lays down the needed (internal) supports for perimeters in an upcoming layer.