mikedkelly

Thank you both for your suggestions. This was the simplest representation of my part, but you've really opened my eyes on what is possible.

Thanks for the reply. I tried that before posting but it didn't seem to make a difference. I am attaching the stl file for reference. Surface-solid Test.stl

Are there settings in Cura to print this object? I can do it by adding enough bottom layers to print the solid, but then the large circle prints with those layers as well. I need the large circle to print as a single wall. The solid part is thin enough that it does not require infill, but either way is fine. Thanks for any suggestions.

Yes, that is the hack that lets the top skin extrude in a single path and the bottom skin plus all the supports extrude without retraction or travel. I essentially print the entire layer in a single path. It bonds fine with both active and passive foaming filaments.

Thanks for taking a look and getting back to me. I need to work on using surface mode as that seems to be the only way to get the entire skin to print. With surface mode it prints the inside structure first and then the skin, which will cause unusable stringing with the foaming PLAs. I'm hoping to get the scenario that you see on the first 20 layers if you have surface mode set to normal. Lots more for me to learn.

I am new to 3D Printing and am trying to slice the attached stl file. The outside skin and tubes were modeled as surfaces (0mm thickness) and the supports are thin solids (.2mm thick). My desire is for the skin and tubes to print with a single wall and the supports to print with 2 walls. This prints fine without the cutout, but with it added Cura removes sections of the skin along the z-axis. Admittedly, I have been hacking Cura to get these to print as opposed to modeling them correctly, so I am open to input on what to do correctly in my CAD software. I have tried turning on surface mode, but it removes some of the tube supports and no longer prints all of the attached bodies with a single extrusion path as it did before. I am using Windows 11 and Cura 4.13.1 but have also tried in Cura 5.2.0. Thanks for any input. Left Wing 1.stl