WH40k Modular Terrain

Wanting a more modular and customizable framework for building construction styled terrains, with expansion and support for up to 50mm size based models, I've started to work on a system that should allow the building of simple or complex walkways and cover positions.

Consisting of joinable 50 x 50 mm (25mm half) blocks that can be joined straight or on angles to create single or multi-level terrain pieces. Using either straight or angle pins to design your models.

Note:
+ These are one sided, so the best orientation for best playing visuals will need to be decided upon when creating. With outside facing walls I found the best way to do them, as the primary player.
+ The pins have some tight/loose torences and best to push them out from the opposite side if remove them, to avoid breaking them.
+ The standard thickness of 4mm is to support multi-level designs, but the 2mm basic design can be used if only wanting single level constructions.
++ Pins can be pushed in with fingernails