Disclosed herein are methods, systems, and materials for high resolution three dimensional printing of metals using low cost raw material. The method employs masked brazing foils having structural layers, melting layers, and in some embodiments masking layers. The foils are selectively joined by brazing to form three dimensional metal objects. Some of the embodiments differ in the number of structural and/or melting layers in the foils, how masks are formed, and how many brazing steps are employed. Etching removes foil material that is not to remain as part of the final three dimensional object, and various embodiments are disclosed for applying the etchant.