Building technique for plate at near 45 degree angle Trying to construct an octagon shaped hallway and trying to attach plates at a near 45 degree angle, but have no idea how to do this. Are there any techniques for attaching plates at a near 45 degree angle that are gapless. Maybe using the technic bent lift arm pieces?

See photo below. Can't get the red brick to line up satisfactory.
ROUND 2.  

HERE, experiment with this new greeblin' compatible .LXF file.

EDIT:  Added X-ray animation to better see the internal contruction.





Please excuse the non-symmetrical sloppiness of this draft (I got lazy).

Note: The non-connecting hinges, and 1x1 circular pieces are to help cover the visible plate gaps.  

We all know LEGO Digital Draw gets anal with the exact distances between pieces, so even if these hinges don't connect on this digital plane doesn't mean they won't in a real life physical build.

Oh, and the structural integrity is not based on the connectivity of said hinges. 

I stole the idea from Set #7661 Jedi Starfighter with Hyperdrive Booster Ring, and added a bit o' me own greeblin';)