I have told them about that kind of issue, that a slice of a 3d print even with a different infill density will only show the infill patern used in each part of the print. The physicists and physicians don't seem to either understand (wich they would never admit) or don't care enough - both are possible.
I'm seeing it as I next level challenge and it would help me personally in learning more about 3d printing and slicing. As I know we can set with the "per model setting" different almost everything, and using a double extruder we can use multiple types of material, I just thought a combo of both would be 1. possible and 2. the next step up...
Thanks to all of you guys!
H