@rueter their bed is 200mm by 200mm... so for 304mm by 304mm plastic sheets you can get easy for http://www.widgetworksunlimited.... or get sheets from here https://www.dallasmodelworks.com...
my only concern would be why these guys think this should take a year to deliver... I know from experience working with these Chinese factories I can have something as simple as this, designed and pushed out in 15 days from the get go. This is not a complex box to make..
That sounds cool, and very smart idea to make it compatible with already owned vacuum cleaner.
I wouldn't say this competes with 3d printing, you can't make things as elaborated than with a printer, but that's ok: modeling and printing is something just a bit beyond the reach of most people, and this could fill the gap by allowing people to make simpler things in a way easier way.
Corkdork
FormBox
OpenVoyce
FormBox
Leaf Grow
FormBox