A (hopefully) helpful hint:

It's usually a good idea to design an object so that the
point around which it will most often rotate, usually the
center of gravity, is the origin.

This box: #declare EZRotBox = box{<-3,-2,-1>,<3,2,1>}
will rotate about its center as one would usually expect.

Whereas,
This box: #declare HardRotBox = box{<0,0,0>,<6,4,2>}
is the same size and shape as the one above, but will
rotate about its lower left front corner, which is
USUALLY not what one would want.

-Mike

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