interfering withthe file

I started testing and combining different g-codes. The infill of file a use layer 0 up to 162 and layer 495 up to 659 and of file B use layer 162 up to 659. And then combining file a and b in a file test.gcode.

a. priten with small grid
layer 0 up to 162

b. printing with larges
layer 162 up to 495

a. priten with small grid
layer 162 up to 659

After having printed with two different materials I was curious if you can also print with two different types of infill within one file.

With this technique I also see an opportunity to print moulds faster. By quickly printing the bottom with a bige grid and the object itself quiet and dilated with a small grid.