To some extent, gradual change of material properties can be achieved with software (by gradually changing infill density, for example). Otherwise, mixing fila

To some extent, gradual change of material properties can be achieved with software (by gradually changing infill density, for example). Otherwise, mixing filaments to combine them in real-time is already a reality in desktop 3D printing[1]. [1]https://www.mosaicmfg.com/products/palette-2 https://www.mosaicmfg.com/products/palette-2