The channels along the inner face of the gripper are connected to a system of compressed air to assist in drying each sample before measuring its weight. Removing surface water and any water trapped between the gripper and sample is crucial to the accuracy of the results collected, especially as it is to be left unsupervised. Funneling compressed air to run out along each face of a controlled sample solves both concerns. Figure shows a cross-section view of a gripper which depicts the air channels in yellow and the mounting for the UR10e robot in green. The air channeling consists of a press-fit hole for inserting 8mm OD pneumatic tubing which is then divided into a channel that runs along the inner control surface and a smaller duct that directs air out towards the end of a held sample. After use of compressed air, the bottom face of the sample is dabbed on a sponge and each side is passed along it downward, removing any remaining drops from both the sample and the grippers.