Fig. 6: Scheme of payload assembly process.
From: One giant leap for womankind: first menstrual cups tested in spaceflight conditions
a The first piece is called the baseframe and it already contains most of the internal plastic structures; b incorporation of batteries and electronics; c placement of battery enclosure; d closure of two sides; e placement of the menstrual cups inside the payload box; f closure of two other sides; g the side panels and top lid are closed using 4 M3 countersunk hex screws on the four corners; h image of the experimental setup/cups.
