Where should I put the compass pointer on the sand table?

In the sand table, the compass runs to the upper right of the sand table.

In the sand table model, scale, compass and scale are another important part of the building model. Dials are used to tell people the theme of building models. Compass and ruler have schematic function.

Three of these three people also played a decorative role. The quality of dial, compass and scale often affects the overall effect of building model making.

Sticking in time is a simple and easy way to make standard edition, compass and scale. The production method comprises the following steps: firstly, processing the content by a computer engraving machine, and then transmitting the content to the chassis by a transfer paper.

The manufacturing method is simple, convenient and beautiful. In addition, the colors posted in time are rich and easy to choose.

Sand table:

According to topographic maps, aerial photographs or field topography, the model is made of materials such as silt and chess in a certain proportion.

Simple sand table is made temporarily on the construction site with sand and chess.

The sequence is: prepare the map, determine the horizontal scale and vertical scale of the sand table (usually the horizontal scale is smaller than the vertical scale), calculate the size of the sand table, accumulate landforms, and set the ground characteristics and military situation.

Among them, the landform is mainly piled up. The method is as follows: select the lowest contour line and related geomorphic feature points, and transfer their positions from topographic map to sand surface, calculate the insertion heights of the top, saddle and foot of the mountain according to the vertical scale, and pile them up according to the topographic map.

Permanent sand table is generally made of foam plastic board or plywood, gypsum powder, pulp and other materials, and its method is basically the same as stacking simple sand table, but it needs to enlarge the plastic landform, contour plate with lots and nails, plastic filler and surface color.