  A scheme is developed which shows how one would, given a light-front
Hamiltonian for QCD, extract the $Q\overline{Q}$ potential, i.e. the quantity
which corresponds to the potential between two infinitely heavy quarks in a
rest frame, from a light-front calculation. The resulting potential will in
general depend on the direction along which the infinitely heavy sources are
separated and thus provides a direct probe of violations of rotational
invariance in a physical observable. Furthermore, easy comparison to data from
$c\overline{c}$ and $b\overline{b}$ spectroscopy and to lattice data is
possible. The scheme may thus be very helpful in constructing a light-front
Hamiltonian through an iterative procedure.
