Share 'getting cocoa liquor with a corona grinder'

Hi,   I am having trouble producing cocoa liquor/paste from roasted, winnowed beans with my corona grinder.  It is only grinding it into coffee-like grounds, not liquor.    I have seen pictures online of others cranking out liquor with a manual corona grinder, so I know it is possible, but I do not know why I am only getting fine grounds.   My mill is not a corona brand, but a victoria cast iron…