Fig. 13

Proposed schematic models (not to scale) showing the simplified 3D orientations of hypothetical particles resulting from different forming techniques. A Hypothetical rigid, tri-axial particle, showing primary and secondary axes as red and blue arrows respectively; B coil-section/coil-building; C coil-wheeled; D wheel-thrown (anticlockwise wheel rotation); E percussion-building/percussion-wheeling; F drawing/drawing-wheeled. See Supplementary Material A Figure S15-S19 for interactive 3D models.