gantry with x-carriage and print head of a fdm-3d-printer that produces white helical gears on blue print bed

additive manufacturing rapid prototyping fdm fff 3d gears printer machine production parts make plastic pla abs white black technology produce extruder layer helical infill spare replacement engineering hobby productive design unique sustainable repair filament industry digital fabrication idea material create object thing heat process computer popular manufacture blue professional industrial gantry x-carriage print head fdm-3d-printer produces bed dark surrounding selective focus concept