Generate support in specific areas

[tristank27 0]

I'm having some usability issues with generating support structures.

I only want to generate supports for the entire bottom of the model and for a small part on top of the model.

My initial plan was to set the "support placement" setting to "touch buildplate" and create an eraser for the top part where I would set "support placement" to "everywhere" where it would apply only to the selected area. But I can't find an option to change the "support placement" in a specific area. This issue is illustrated in image2.

 

If I set it to everywhere for the entire model I get supports in weird places (marked red in image1). I understand that I can achieve what I want with support blockers but I have rings and a lot of tiny shapes in the back that would require 10+ support blockers, so I would like to avoid this option.

Is there a more efficient way to do this?

 

TLDR; I would like to generate the green supports without generating the red supports as illustrated in image1.

 

EDIT: I just noticed the text on image2 isn't very clear. The selection from the dropdown is "cutting mesh" and the enabled option is "generate support".

 

Edited March 17 by tristank27
Text on image wasn't clear enough, added cura file