[Timo] has learned this lesson over his years-long saga owning a laser cutter, although he has attempted to remedy most of the problems on his own, this time by building a Z-axis table on his own ...

The title tells you what the bar chart is about. The vertical and horizontal lines are called axes. The horizontal line is called the 𝒙-axis. The vertical line is the 𝑦-axis. Both axes are ...