Aleks
Yes all this paper. spherical surfaces. they are made from plastic foam aircraft.
the paper used the density of 200 g/m2
also used copper wire of various diameters for antennas and pipelines
that's thunderbolt
Yes, the build process can be viewed here
http://www.cardarmy.ru/forum/viewtopic.php?f=14&t=3569
http://www.cardarmy.ru/forum/viewtopic.php?f=14&t=4417
http://only-paper.ru/forum/32-2548-1