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We present a three-dimensional photoionisation and dust radiative transfermodel of NGC 6302, an extreme, high-excitation planetary nebula. We use the 3Dphotoionisation code Mocassin} to model the emission from the gas and dust. Wehave produced a good fit to the optical emission-line spectrum, from which wederived a density distribution for the nebula. A fit to the infrared coronallines places strong constraints on the properties of the unseen ionisingsource. We find the best fit comes from using a 220,000 K hydrogen-deficientcentral star model atmosphere, indicating that the central star of this PN mayhave undergone a late thermal pulse.  We have also fitted the overall shape of the ISO spectrum of NGC 6302 using adust model with a shallow power-law size distribution and grains up to 1.0micron in size. To obtain a good fit to the infrared SED the dust must besufficiently recessed within the circumstellar disk to prevent large amounts ofhot dust at short wavelengths, a region where the ISO spectrum is particularlylacking. These and other discoveries are helping to unveil many properties ofthis extreme object and trace it's evolutionary history.

3D Photoionisation Modelling of NGC 6302