You've got the dates mixed up. The era of hyperinflation and the occupation of the Ruhr occurred from 1921 to 1925, after which the "Weimar Golden years" occurred where the NSDAP were a small minority. The Great Depression occurred in 1929, which promptly crashed the German Economy. Unlike in 1921, this time the government chose austerity which caused great hardship and radicalized much into either the NSADP or KPD. The ruling centrists weren't able to govern without support of either, hence they planned to use Hitler as a "puppet" between the President and the Vice Minister. That plan backfired, although it is to note Hindenburg could have fired Hitler at any time.