I myself have access to a suite of these machines. I recently got a commission from a Belgian re-enactor to produce 5 copies of a very rare unit cap badge.
He supplied the original, this was then laser scanned and refined and worked on in 3d sculpting software. It was enlarged slightly to allow for casting shrinkage. Date marks were also added to the back (along with a few hidden tweaks) to make it couldn't be passed off as an original.
The 3D print of the completed badge was quite rough and took a fair amount of work to smooth out. After this was done a mould was made in vulcanised rubbe