Noticed that when I'm deploying voxels at the bottom of the build space for a Large Static Core I will occasionally get "You cannot deploy voxels or elements outside of the build zone".
So far as I can tell the largest single chunk of voxel you can lay down is 160x32x32. When trying to lay down a 160x32x1 layer of Voxel, I would notice that the reticule would go red somewhere between 88x32x1 and 98x32x1.