ABS (Acrylonitrile Butadiene Styrene) (FDM, Bambu Lab Bambu ABS, annealed)

Bambu Lab Bambu ABS, annealed, is one maker's ABS filament printed by fused deposition modeling and heat-treated after printing. As printed, the deposited roads leave layer lines, small voids and weaker bonding across layers than along them. ABS also shrinks on cooling, which causes warping and residual stress, so it is printed on a heated bed, preferably in an enclosure. Annealing does not crystallize this amorphous polymer, but it relaxes residual stress and can improve interlayer bonding, though it may shrink or distort the part. Printed parts serve as functional prototypes, housings, jigs and fixtures. Every value on this page is read from Bambu Lab's own material data sheet — quoted, cited and dated — and is the maker's statement about printed material, not a measurement by MatWorld; none has yet been reviewed by a person.