Some posts I found were saying that cura does this (all skin infill) for non utilimaker printer profiles. I contacted Utilimaker through their github and their solution was the 99.9% fix, and they will look into it.
I have been using Prusa slicer and love it in comparison, much faster to accomplish same tasks and it seems more intuitive. I thought I should give cura a try since I keep having issues with my rail pieces breaking off the supports. I could fix this problem in PS with settings undoubtedly but chose Cura for variety
Just finished slicing orca handguard on cura and I thought I would share my experience.
In order to get the infill mask and support to lineup and work correctly I had to take into consideration
-When using a infill mask for a part with 100% infill you must switch to 99.9% infill. If left at 100% the infill becomes skin and the mask doesn't work. Alternately you can readjust top and bottom layer count after setting 100% infill to correct this
-The support file must be changed in 'per model setting' to print as support
-All three models must be loaded and settings modified before merged and oriented to avoid misalignment
-A second infill mask is needed as a support blocker to keep support enabled for areas other than the custom support for the rail. Without the blocker cura wants to support all the stippling
Finally I wasn't able to get the custom support to propagate in tree mode or find a way to change that
I am pretty new to 3D printing so I could easily be missing something here.
Hope this helps anyone wanting to use Cura
