yhay, worked in STCs!! what a dork...
this is a blatant rip off of someone else's idea (as per 'components' pic). i saw a couple of pics (shown) and went nuts making variations, plus roofs etc.
with these slabs you can make countless variations from suburban themed, to industrial, to ecclesiastic, dremmel the carp out of them to make ruins or even make space ships... yes you can.
The slabs come in four prefixes (L) which are the 'large/standard' slabs, (H) for 'half-size', either vertically half or horizontally, (F) for fillers, and (R) for roof.
print, superglue, push together into flat panels, connect as required. i usually smear on some fine grade wall plaster (then sand) to hide some of the joins and also use 'texture paint' to help conceal the print striations (plus adds texture). flat roof = mdf.
i've printed a table's worth and much prefer fighting over an active settlement rather than worthless ruins. personal taste.
am planning on adding extra pipes, buttresses and gribbles eventually but they work just as well as nice plain terrain (good for clumsy fingers). and of course this site had lots of columns, statues etc that can be rescaled for nice points of interest.
my local hardware store sells 'hobby coasters' which are extra-compressed mdf and work great as standard sized bases (for those of us incapable of cutting a straight line).
i recall that some of the slabs may be missing faces from the stl conversion process. i'll try to review them all to make sure they're good to go.