I asked it to draw a star and what it produced was open-loop code like this: "forward(50); time.sleep(2); set_dir_servo_angle(35); time.sleep(1); forward(50)...

I asked it to draw a star and what it produced was open-loop code like this: "forward(50); time.sleep(2); set_dir_servo_angle(35); time.sleep(1); forward(50)..." This doesn't work and shows a great degree of naiveté! Odometry on robots is not, of course, not 100% accurate, so you always need to use closed-loop control (plans that include sensor readings).