I have a model I want to print that has multiple layers of internal walls. They are useless and can’t be seen in the finished product, like a hollow cylinder inside another hollow cylinder.
I can’t seem to figure out how to prevent the slicer from including those useless parts. I’ve tried with Cura and PrusaSlicer. Is there another tool I should be using for this?
That kinda looks like tree supports being added inside the model, likely for an overhang above that area. An easy method to prevent them from being generated is to use support blocking. In Cura, select your model, then on the left hand side in the tools, there is the “Support Blocker” tool. Select that and click on the model in an area you don’t want the supports generated. You can then select the blocking block and resize/move/rotate it just like a model… You can add more support blocking blocks by selecting the model again, selecting the “Support Blocker” tool and clicking on the model. Add blocks and try slicing the model, if you still get supports in bad spots, adjust your blocking blocks and try slicing again. Wash, rinse, repeat until you get the results you want.
It’s not the supports that are the problem, it’s the second wall inside. The red walls are the outer walls, and the green ones are the inner walls. There’s an outer wall on the inside of the inner walls. Basically the part with the tree support in the middle is considered outside by the slicer. Instead of having a second set of walls plus tree supports, there should just be infill.