ZBrushCentral

Seeking Zbrush class focused on 3d printing (for eventual lost wax casting)

Hi i am seeking a Zbrush course somewhere in the bay area that is focused on creating things for 3d printing. I am super fresh to zbrush and def need some pointers…i have looked at several of the schools that the zbrush training says offer Zbrush courses, and either they are not available, or are not just focusing on zbrush and are mostly focusing on game design and animation (understandly)

P.S. i own a whole vacuum casting lost wax setup, electric crucible, wax injector, tons of investment, tumbler, mold making materials and a warehouse workshop to do things in (as well as my glass blowing shop!) and am definitely down for trading tool use or skill trade!..my friend who invested in this with me (who really knows zbrush) went to thailand and hasnt come back yet lol…

if anyone has any leads for me please let me know or if you or someone you know would be down to mentor me im willing to pay (what i can)