@HughesToolingOh, wow. I've never used Boundary Fill and it solves so many problems for me. THANK YOU! My process has been to import the common "frame" component then add extra bodies that sit inside this frame. However, the F360 "Make" command does a poor job of merging components and bodies for 3D printing. So, I've had to export the "frame" as one STL then each of the other bodies as separate STLs. Then I take all of those and import them into my slicer and try to re-align them again. Then slice. The slicer is able to properly merge all these bodies better than F360 can. However, with this new found Boundary Fill I'll be able to properly combine all the bodies into a single body then "Make" that one body which I expect will be sliced properly. In this scenario, I only ever have one imported component so this is a fantastic solution for me.
THANK YOU!
Ian