Nested Design in Experimental design. Theory, Example and calculations step by step.

[@amirsafari7140]

very good video. i've watched all of your videos and i have a question. i'm working on laser assisted turning and i have 5 parameters. depth of cut, feed rate and spindle speed are turning parameters and for laser i have laser power and laser angle. at first i've designed a faced centered centeral composite design with 5 factors in 3 levels. but i realized that when laser power is set to 0, laser is off and setting laser angle become irrelevant. what should i do here? can i use rsm regardless of this problem? is laser angle nested in laser power (my intuition says no). what design of experiment method should i choose do you think? thanks for your effort and good videos