placing an item in your shopping basket does not guarantee your right to purchase that item.

How would the previous sentence be correctly capitalized?
Answer: Placing an item in your Shopping basket does not guarantee your right to purchase that item.
when any motion is detected motionhunter livens up.

How would the previous sentence be correctly capitalized?
Answer: When any motion is detected MotionHunter livens up.
a six-axis robotic system removes the moulded parts, transfers them to a turning station and then moves them to the inline printing system in the correct position.

How would the previous sentence be correctly capitalized?
Answer: A six-axis robotic system removes the moulded parts, transfers them to a turning station and then moves them to the inline printing system in the correct position.
but there was now enough noise and bustle in the yard.

How would the previous sentence be correctly capitalized?
Answer: But there was now enough noise and bustle in the yard.