Model Making Materials: Acrylic, Wood, and 3D Print Compared

Almost every model we build combines several materials, each doing a different job. There's no single "best" material — acrylic, wood-based materials, and 3D-printed components each solve a different problem. Here's how we actually choose between them.

Acrylic

Acrylic — clear, frosted, or painted — is our primary material for buildings. It cuts cleanly on our CO2 laser cutters, holds a crisp edge for facade grids and window mullions, and takes paint well for colour-matched finishes. Clear and frosted acrylic also does double duty for glazing and water features, where a resin or blue-tinted gel finish over acrylic gives the look of a pool or lake.

Where acrylic falls short: it's less suited to complex organic or highly detailed geometries — anything with intricate curves or fine texture is faster and more precise to produce with 3D printing.

Wood-Based Materials (MDF, Foam, Hardwood)

MDF and foam are our terrain and massing materials. CNC-milled MDF and high-density polyurethane foam handle large-format topography — the ground plane, site contours, and massing volumes — at micro-millimetre precision on our 5-axis CNC mill. Hardwood comes in for structural components and details where a natural material finish is specified. MDF and plywood are also our standard base and plinth material, wrapped in vinyl or painted to the client's specification.

Wood-based materials are the cost-effective choice for anything that doesn't need to be transparent or highly detailed — massing blocks, terrain, and bases all use MDF or foam rather than more expensive materials that would add no visible benefit at that stage of the model.

3D Printing (SLA / SLS)

3D printing — Stereolithography (SLA) and Selective Laser Sintering (SLS) — is where we go for intricate architectural detailing, complex organic geometries, and custom miniature components that would be impractical to cut or mill. On a 120-unit residential estate model, each unit type was modelled digitally as a master component, then reproduced via 3D printing for facade detail combined with laser-cut acrylic for wall panels and roof elements — using each material for what it does best rather than forcing one material to do everything.

3D printing is also how we handle repeatable components at scale — when the same window unit or facade detail needs to appear dozens or hundreds of times across a multi-unit development, printing gives consistent precision that hand-cutting the same shape repeatedly can't match as efficiently.

Why Most Models Use All Three

A fully-detailed presentation model rarely uses just one material — the terrain is CNC-milled foam, the buildings are acrylic and 3D-printed detail, the base is finished MDF, and the landscaping is resin trees and model grass over the milled terrain. Each material is chosen for the specific job it does best, which is also why material specification is one of the factors that affects project pricing — a model with more 3D-printed detail work costs differently than one built primarily from acrylic and foam.

For more on our fabrication process end to end, see how architectural models are made, or our full FAQ for the complete materials list.