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Module 2: 3D Printing Materials

20267m

Explain the different forms of raw materials used in 3D printing with suitable examples.

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Forms of Raw Materials in 3D Printing

MermaidDiagram
Rendering diagram…
Form Process Examples Features
Filament / wire FDM, wire-arc AM PLA, ABS, PETG, nylon, TPU; metal wire (steel, titanium) Cheap, clean, easy to handle, anisotropic strength
Liquid resin SLA, DLP, PolyJet Acrylate and epoxy photopolymers High resolution, smooth surface, needs washing and curing
Powder SLS, SLM, EBM, binder jetting Nylon (PA12), stainless steel, titanium alloys, aluminium, ceramics, sand No supports needed, strong parts, powder handling and safety needed
Sheet / laminate LOM Paper, plastic or metal foils Low cost, large parts, limited accuracy
Paste / slurry Extrusion bioprinting, ceramic printing Ceramic paste, concrete, bio-ink Special applications

Selection tips

Pick the material form according to process, required strength, accuracy, cost and post-processing.

Exam tip

Cover the three forms (solid, liquid, powder) with a table and 2 examples each.

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