I mark the 2nd point. I measure 8.5cm from the left with the ruler.
Medium
Use the pencil to mark the 2nd point for the next spoon. Use the steel ruler to measure 13.5 cm from the left edge. The distance to the bottom edge is 5cm.
Heavy
The mark for the 2nd spoon is drawn at 13.5 cm with the steel ruler. The first point is therefore at 5 cm. Add 8.5cm for the 2nd point. As always, the distance to the bottom edge is 5cm.