MakerBot True Purple ABS Spool - ABS filament for Replicator Mini - MP02901 MakerBot ABS Filament is the best, most consistent, and most tested ABS filament. MakerBot ABS Filament is good for detailed prints. Every filament color is comprehensively quality tested at both 100-micron and 200-micron layer resolutions on the MakerBot Replicator 2X to verify that the filament will perform every feature that MakerBot MakerWare software offers and reliably slice and print every type of printing.