The PRIMitive TARDIS kits are set to a realistic height (Corridors are 3m high for example). The PRIMitive TARDIS range uses standard Prims with improved physics shape choices and Mesh to keep LI as low as possible.
The Eye of Harmony, also known as Rassilon's Star, was a power source for the Time Lords from which time travel was possible and was the source of all power on Gallifrey. It was also asserted to be the centre of the Web of Time.
The Eye was created by suspending time around an exploding star in the act of becoming a black hole, harnessing the potential energy of a collapse that would never occur. Rassilon used the Hand of Omega to rip a star from its orbit, and suspended it in a permanent state of decay. The power of the explosion of the black hole, and the elements thus set free, were channelled into a mast which was then buried within the Capitol's floor and worked into an "endlessly dynamic equation" via being balanced with the mass of Gallifrey itself: should the Eye be removed from Gallifrey, the whole planet's matter would turn to anti-matter.
It poured forth raw artron energy which powered all TARDISes and Time Scaphes. This link existed as a beam and acted as a point of reference both temporally and physically for all TARDISes to calibrate from. A TARDIS could not receive energy from the beam outside of the normal continuum.
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