>>106210668
You don't get it
Imagine a machine sewing a red carpet on top of a conveyor belt
Naturally that conveyor's width is enough to accommodate the carpet and the machine is programmed to make the carpet of a specific width
Imagine that carpet was to be cut into specific sizes
It makes much more sense to cut that carpet in different spots depending on demand than to remake everything, that assembly line can make both a 192x108cm carpet and a 144x108cm carpet because what dictates how that machinery works is that 108cm of width
Even if you wanted to make a second type of carpet with 180x135cm dimension you would still be able to make a 240x135cm carpet on it unless you explicitly wanted your machines to make the longer edge and to use a wider conveyor