Hey all, a few questions.
Printing hollow (0% infill) with 2 or 3 outline perimeters for the shell works well enough for me, but I'd like to use the inside of this hollow print as a mold to cast another material in (eg. silicone). Couple questions.
First, is there any option or setting I can change so that the inside of the print is printed with a clean surface and the outside gets all the visual deformities instead? For example, in the attached photo, the steep slope of the chin combined with having 3 or 4 bottom layers causes the inside of the print to be slightly extruded inwards and look a bit messy. I honestly don't care how mangled or terrible the outside of the print looks, so long as the inside looks great. Any way to do this? Printing from inside to outside instead doesn't seem to solve the issue.
Second, is there a setting so that the outline walls are built OUTWARDS instead of INWARDS? I essentially end up with a hollow print where the inside is actually smaller than it's supposed to be, since the slicer set up the walls to go towards the inside. I'd like to have the walls built outwards such that innermost wall should be the correct same size as my model, if any of that makes sense.
Just a heads up also, I'm aware of other methods for making molds, such as using boolean operations in other software or even using Cura's experimental mold setting, but these methods, the way they're designed, also blow the print times through the roof. Printing hollow with 2 shells works perfectly and keeps the print time down to 2 hours or so, instead of 16+, but I just can't seem to make the inside of the print have a clean surface and ensure that the walls are built outwards. Any advice would be greatly appreciated, thanks all!