Supplementary Figure 2: Preparation of the primary CNT fibre.
From: Preparation of biomimetic hierarchically helical fiber actuators from carbon nanotubes
(a) Placing a CNT array on the rotor of a serve motor (left) with the end of the spun CNT sheet on a collecting drum of a stepping motor (right). (b) Twisting the primary CNT fibre by anticlockwise rotation of the servo motor and clockwise rotation of the stepping motor. Scale bar in a and b, 2 cm.
