BJT for full-color prototypes. gypsum powder + CMYK binder + clear glue. fast, cheap, fragile.
CJP is the fastest and cheapest full-color print (CMYK + clear on gypsum). Ideal for architectural presentation models, medical CT/MRI models, education, character props. Weak mechanical strength: prototyping/display only.
Engineer, author of The Big Book of 3D Printing and additive manufacturing expert