A trick I use is to always build things I want to animate aound the origin.

The actual point of ratation being at <0,0,0> , and then translate the 
object into position.  So I execute the rotation before the translation.

e.g.

box
    {
    <-1,-1,-1>,<1,1,1>
    rotate <0, clock, clock/2>      // this would be where you apply your 
rotation varaiable
    translate <10,1000,9>           // translate into position
    }

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