The production method of industrial factory sand table model is different from that of ordinary residential sand table model, because the general industrial factory sand table model requires a wider land area and various factories, equipment, etc. need to be planned.

1. Set up the sand table: Place the sand table box securely, preferably with the orientation of the sand table consistent with the physical orientation. Then mark the corresponding grid on the topographic map and annotate the corresponding number around the sand table box.
2. Accumulated landforms
(1) Draw the selected lowest contour lines on the topographic map, contour lines that can control the basic shape of the terrain, as well as the positions of mountain tops, saddles, foothills, tilt transformation points, and rivers on the sand table according to the grid.
(2) Calculate the prominent points of undulations such as the mountaintop, saddle, foothills, slope changes, and river bends that have been calculated.
(3) First, pile up the rough shapes of the mountaintop, saddle, and back as the backbone, and then trim other parts. If the sand table is large, it can be stacked in sections and stacked in a difficult to easy manner. If there are large rivers and lakes, they should be excavated together when trimming the landform. After the stacking is completed, conduct a comprehensive inspection and repair.
3. Set up features: Features on the sand table, such as houses, railways, bridges, and independent features, are often represented using similar models. Highways and rural roads are represented using paper of varying widths and colors. The size of the geography should be adapted to the horizontal scale, and the relationship position should be correct. When setting up land features, they should be arranged in the order of water systems, residential areas, roads, and forests. Finally, place names, river names, mountain names, and elevation annotations should be inserted at the corresponding positions.