3D printer cartridges and materials are the feedstock of every print job: filament spools and cartridges in the common thermoplastics, the engineering materials that trade easy printing for strength and heat resistance, and the resins and specialty supplies particular printer families require. The printer sets the possibilities; the material in the bay decides what the part can survive.
Buy material the printer supports - cartridge-based printers typically require their own family's supplies, and even open-filament machines print best inside their documented material list and diameter. Choose the material by the part's job: easy-printing plastics for models and classroom work, tougher blends for functional parts, and specialty materials only where their handling requirements are worth it. Storage matters more than most expect, since many materials absorb moisture and print poorly for it - order at the pace of use. COLAMCO supplies 3D printing materials for business, government, and education programs, matched to the printers on the floor.