I work in the machine tool industry. But I'm a baby in using C4D, and I confronted some difficulties when I want to try milling 2 routes at different time frame.
From 0-200fps I want to mill out a plane first (see pic1). And than 201-300fps, I want to continue to mill a square(see pic.2).
But the problem is, the square goes back to the size before I mill the first plane, which is not I want. (see pic.3 red line).
Here's the .c4d file for your reference.
https://drive.google.com/file/d/1637Fo8azdlYp9IMo2NKVVGagPBinwIA2/view?usp=sharing
I will be very very thankful if anyone could give me some hint or advise. Thank you.

pic.1

pic.2

pic.3