Not yet but I am anxiously awaiting for more manufacturing functionality. The NX12 docs state there are some convergent modeling enhancements and there is also some limited drafting support in NX12 as well. Do have all you need as far as license bundles are concerned? The lattice function looks nice. Sounds like you are super excited to move ahead in printing! Post back when you've had a chance to print.
Recently I had a meeting with a Siemens product manager and he said more manufacturing support is coming. I assumed convergent modeling was going to be geared towards printing but he told me there will eventually be support for milling too, which is my main interest at the moment.