Agricultural sand table model making factory

Case study of agricultural sand table model production: a journey from blueprint to three-dimensional countryside restoration

1、 Preliminary Preparation: Preheating of Drawings and Materials

Before making an agricultural sand table, first replicate the planning drawings of the agricultural park, clarifying the layout proportions of farmland, greenhouses, buildings, roads, etc. In terms of material selection, environmentally friendly lightweight materials are the main focus:

Base plate: choose density board or hard foam board, with thickness of 1-2cm, convenient for subsequent splicing and bearing;

Ground/terrain: Light brown clay (simulating soil) is used for farmland, gray PVC board (simulating asphalt) is selected for roads, and transparent resin (simulating water surface) is used for water systems;

Construction: foam board and cardboard for houses, transparent acrylic board+wire frame for greenhouses;

Vegetation: green clay/soft clay for farmland crops, resin and foam balls for trees, and colored clay for flowers;

Facilities: Resin/plastic models for agricultural machinery, PVC pipes and small water tanks for irrigation equipment, metal wires and LED lights for street lamps.

2、 Production process: splicing from "flat" to "three-dimensional"

1. Bottom panel splicing and terrain shaping

Cut the bottom plate according to the drawing scale and assemble it into a complete base. Use clay and foam balls to stack up the undulations of farmland, and use sandpaper to polish the edges of PVC boards in the road area to simulate the texture of real roads; First lay transparent resin in the water system area, then color it with blue pigment to simulate the color of water flow.

2. Building and facility assembly

House: foam board is cut into wall, cardboard is used as roof, and hot melt adhesive is used for pasting; Blue cardboard and transparent adhesive are used to simulate glass for doors and windows, and fine sandpaper is used to polish the edges of details to make the building more exquisite.

Greenhouse: Acrylic panels are cut into transparent frames, with metal wires fixing the structure. Green clay is used to simulate crops inside, and white cardboard is used to simulate walls outside, restoring the "light transmission+insulation" characteristics of the greenhouse.

Agricultural machinery and irrigation: The resin agricultural machinery model is placed according to the drawing position, with PVC pipes connecting the water tank and farmland. The pipeline direction is marked with blue paint to simulate the irrigation system.

3. Vegetation and Detail Filling

Farmland crops: green clay is molded into strips, and the crops are distributed and pasted in the farmland area according to the drawing. The density is adjusted with tweezers; Flowers are molded into flower shapes using colored clay and fixed in corresponding positions.

Trees: resin trunk+foam ball crown, the trunk is painted with brown pigment, and the crown is modeled with green clay/soft clay, which is scattered along roads and buildings.

Characters and vehicles: Small doll models wearing colorful clothing, simulating farming and picking actions; Stick red car stickers on car models and place them in the center of the road to recreate rural life scenes.

3、 Post processing: the finishing touch of color and texture

1. Coloring and detailing

Base color: Light brown pigment is used to coat the base color for farmland, gray pigment is used to coat the base color for roads, and blue pigment is used to coat the base color for water systems, ensuring a uniform basic color tone.

Detail coloring: The walls of the house are painted with light gray paint, and the roof is painted with dark gray paint; Yellow paint is used to coat the body of agricultural machinery, and red paint is used to coat the tires; The trunks of trees are painted with brown paint, the crowns are painted with green paint, and flowers are painted with yellow paint to make the colors more realistic in agricultural scenes.

Texture enhancement: The surface of farmland clay is lightly sanded with fine sandpaper to simulate the roughness of the soil; Polish the surface of the road PVC board with sandpaper to simulate the feeling of asphalt particles; The surface of the water-based resin is repeatedly dyed with blue pigment to simulate water surface waves.

2. Light and Shadow and Atmosphere Creation

Lighting design: Install miniature LED lights in greenhouses, houses, and streetlights to simulate natural light and artificial lighting; Use reflective stickers on agricultural machinery and vehicles to restore their metallic luster.

Atmosphere embellishment: Sprinkle a small amount of green paper scraps along farmland and roads to simulate weeds, and stick blue paper strips next to water systems to simulate ripples, making the sand table more dynamic.

4、 The 'secret' with a restoration rate of 90%

Throughout the production process, the core is always focused on "realistic scene":

The size ratio of buildings and facilities strictly follows the drawings to ensure accurate spatial logic;

Details such as vegetation color, agricultural machinery design, and irrigation system layout should be adjusted based on real agricultural park photos;

The hierarchical processing of light, shadow, and color allows the model to restore the atmosphere of "rural production+life" when observed from different angles.