Must be able to simply slide on and off the interface pegs. Anyway, the end result is a jumbled stack of boxes. Without exterior walls, all of the innerworkings of the satellite are vunerable to abuse during launch, to work around this we found it neccessary to attach to the launch vehicle very securely. What it does Supports the other subsystems, simple enough. Prevents the other subsystems from being damaged during launch.
Velcro connects the boxes to each other and secures any loose wires.
For rigidity, the batteries are attached directly to the base plate and strapped down using wire. To improve the vibration performance of the leaning tower of boxes, a stiff wire is tensioned over the whole stack and wrapped around two securing nails. For more details see the physical layout . The holes were lined with short lengths of plastic tubing to achieve a very snug fit.