Two-part mold for a silicone bumper

Experimental two-part mold meant to make a silicone bumper.
I recently bought some two-part silicone to experiment with. I have watched numerous videos on two-part molding and decided "why not print the mold instead of first making one in silicone, then waste more silicone on molding the part?"
For a simple part which won't require a flexible mold to demold, it seemed reasonable.

In the pictures, it is used on the fridge, protecting it against bumping into the kitchen door frame. I have