PARIS unveils impressive box

Main payload container ready for lift-off

I'd like to take a quick break from construction at this point to offer thanks to my son Rui for his help. Every project really needs a glamorous assistant, but the budget's tight so the poor lad got volunteered to stand in.

Back at the box, we fully encased the release mechanism...

... except of course for the plunger and release rods. The bit of plastic trunking acts as a guide and stops the connecting bracket digging into the styrofoam as the plunger rod extends and droops under its own weight: