Avoid concentric infill on bottom layers ONLY?

[gpvillamil]

I am printing a model where I'd like to use concentric infill on the top (visible) surfaces, but avoid it on the bottom layers. Basically, since concentric infill follows the same pattern on every layer when building a on a flat surface, it is weaker than the rectilinear infill (which criss-crosses).

What I am doing is setting up two processes, and then in the advanced options setting one process (with rectilinear infill) to stop printing at 1mm, and then another process (with concentric infill) to start at 1mm.

Is this the best/right way of doing it? Preview looks fine.

[dennisjm]

Yeah there isn't a way to change the infill variably other than multiple processes.

[KeyboardWarrior]

I am printing a model where I'd like to use concentric infill on the top (visible) surfaces, but avoid it on the bottom layers. Basically, since concentric infill follows the same pattern on every layer when building a on a flat surface, it is weaker than the rectilinear infill (which criss-crosses).

What I am doing is setting up two processes, and then in the advanced options setting one process (with rectilinear infill) to stop printing at 1mm, and then another process (with concentric infill) to start at 1mm.

Is this the best/right way of doing it? Preview looks fine.

That's the way I'd recommend doing it! However, since you only need the bottom solid layers from Process 1 and the top solid layers from process 2, I'd do the following.

Process 1:
Change top solid layers to zero

Process 2:
Change bottom solid layers to zero

[dennisjm]

Except also be wary if there are parts of the model in process one that actually do need top layers and parts of the model in process 2 that need bottom layers.

[gpvillamil]

Seems to have worked fine.

Need to remember to turn OFF skirt for process 2, otherwise it prints a skirt into mid-air.

Since I only printed 1mm with process 1, I didn't bother disabling top/bottom layers.