Figure 132.—Sennit coil technique ('afa mamanu):

a, a coil is made which when flattened out will be the desired length of the cylindrical coil; b, the end of the braid (1) from the coil (a) is wound transversely around the coil to form the basis of the cylinder with the free end (1) ending at the bottom; c, from the mid-front (2) at the lower end of the surface facing the coiler, the braid is turned up at an angle of about 45° and wound spirally around the cylinder until it reaches the top edge at (3); d, the braid is turned down at right angles to its previous course and wound spirally around the cylinder in the opposite direction as shown by the arrows. On arriving at the lower end, it crosses over the commencement of the ascending spiral at (2) to reach the edge. It is then turned upwards to follow the ascending spiral on its lower side. e, The second ascending spiral turn reaches the upper edge at (4) where it crosses the commencement of the descending spiral from the turn (3). The braid is turned down from the edge at (4) and follows the descending spiral on its upper side until it reaches the lower edge at (5) when it is turned upwards to follow on the lower side of the previous ascending spiral turn. f, The technique is now established. The ascending turns follow on the lower side of the previous ascending turns, are turned at the upper edge to descend on the upper side of the previous descending turn, and at the lower edge change direction to ascend again on the under side of the previous ascending turn. The technique is continued until the whole surface is covered. Care must be taken to bring each turn to the edge so that an even upper and lower edge is maintained. Each subsequent turn fixes the preceding one. As one complete layer of spiral turns is formed, the winding simply continues. The geometrical pattern develops itself and the triangular figures show up in the actual coil better than in the figure, owing to the standing out of the overlapping last layer.