Zero perimeters, top and bottom layers for partial hemisphere
I am trying to 'cheat' using slicing to create a structure to avoid modeling it. When printing a cube, for example, using a hexagonal infill with perimeters but zero top and bottom layers can create an interesting effect and even be useful. But I'm thinking it's not possible to achieve this with something like a partial hemisphere. There are always paths between the infill structures. The only infill patterns that don't exhibit the extra connections are options like Octogram Spiral and a couple others which don't create an integrated structure—they'd just fall apart. I'm sure I've explained this poorly—the attached images will help.
RE: Zero perimeters, top and bottom layers for partial hemisphere
Have you tried gyroid infill? Infill is connected, but gaps exist in all dimensions. Can you elaborate a bit more on what your intended result is?
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He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
RE: Zero perimeters, top and bottom layers for partial hemisphere
My intent would be the cube example for the half-hemisphere, just open hexagon columns (vertical) bound by the half hemisphere shape. Gyroid exhibits the same issues (attached, top-view so you can see the extra paths between the infill). Note that the color legend is on for the slice, the rust/red color defines 'infill'. As for the purpose of the design—I can come up with dozens of other solutions—I just thought this would be super easy and look cool.
RE: Zero perimeters, top and bottom layers for partial hemisphere
The design is for a plate at the bottom of a spherical glass container that I will use as a terrarium for air plants. When I'm away for an extended time I'd add water to the sphere but didn't want the plants to get submerged but allow water vapor to easily rise. (I need to print the 'plate' in two pieces because the opening of the glass container is smaller than the diameter of the plate, which is why it is divided in half)
RE: Zero perimeters, top and bottom layers for partial hemisphere
I've quickly designed the piece to work with only perimeters (attached). I just thought I could be lazy by getting the slicer to do the same thing like I could for objects with a flatter top layers.
RE: Zero perimeters, top and bottom layers for partial hemisphere
The extra lines shown here are around the perimeter and are what actually attach the infill to the perimeter. I doubt they are ever optional in a slice sense.
RE: Zero perimeters, top and bottom layers for partial hemisphere
Is that a cylinder or hemisphere tim-m30?