I'm generating some Cellular Automata for 3D printing. To do so, each CA rule is generated with a 200x200x200 domain (which is a 200x200x200-voxel cube). Here is my problem, I'm using the function Graphics3D to generate the cellular automata but I can't reduce the cubic voxel side length, which is set to be 1mm by default, and causes the model to demand too much memory from my computer (I have 8GB) and the software just closes without finishing generating the model (with this side length the model becomes 4 times bigger than the one that I actually need). I'd like to know if there is a way to reduce the side length of the cubic voxel, so the model generated is smaller and requires less memory to run properly.
I'm using Graphics3D because it's the only function that I can Export to .stl files (I also tried with Image3D and I can generate the models with this side length but I can't export to .stl). I added the Mathematica code that I'm using bellow so you guys can see and maybe help me with it.
I think the problem is with rendering the Graphics3D with 4007223 cuboids in the notebook. I added a ; to suppress rendering and it completed successfully.
Automato3D = Graphics3D[Cuboid /@ Position[CA3D[23, 200, 50, 100, 12], 1]];