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Many different materials can be used for 3D printing, such as ABS plastic, PLA, polyamide (nylon), glass filled polyamide, stereolithography materials (epoxy resins), silver, titanium, steel, wax, photopolymers and polycarbonate.

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1. Tinkerplay:

2. MakerBot Mobile:

3. Blokify:

4. Thingiverse

5. Autodesk 123D

6. Morphi

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Stereolithography (SLA)

Digital Light Processing (DLP)

Fused deposition Modeling (FDM)

Selective Laser Sintering (SLS)

Selective Laser Melting (SLM)

Electronic Beam Melting (EBM)

Laminated Object Manufacturing (LOM)

Binder Jetting (BJ)

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Every 3D printer builds parts based on the same main principle: a digital model is turned into a physical three-dimensional object by adding material a layer at a time. This where the alternative term Additive Manufacturing comes from.

3D printing is a fundamentally different way of producing parts compared to traditional subtractive (CNC machining) or formative (Injection molding) manufacturing technologies.

In 3D printing, no special tools are required (for example, a cutting tool with certain geometry or a mold). Instead the part is manufactured directly onto the built platform layer-by-layer, which leads to a unique set of benefits and limitations.