Pres candidates: where does the usa dollar come from---how is it created? Is debt part of the value????

does the USA just print money whenever it wants?? and is there any formula for how much they can print?? and if they keep printing, does this not create dilution? and are assets and liabilities considered when printing? and if debt does not matter according to government and there is no formula and the government can just print as much as they want---well, why cannot each household have their own money printing machine?? oh, credit cards?? but maybe, like the government, the citizens would also like NOT to pay back...huh maroons, what u say?????????