The first layer of the stratum is made from flour. After pressing with the pressing board, clean the flour from the inner wall with the edge of the acrylic plate, like wiping the window of a car. This is the most important step. Note that there is a spacer board at the right end of the case. After making the strata, pull it out and press the strata by inserting the strata presser.
The second layer is cocoa ........ The cocoa is expensive, so make it a little thinner. The spacer board is held down so that it does not fall down. In this picture, the cocoa layer is made because 30% cocoa powder is sold at supermarkets in Thailand at a low price. If only pure cocoa is available, the cocoa is spread only on the visible sides of the case (the cocoa plays the role of the strata pattern). (The cocoa acts as a pattern for the strata.)
Harden the cocoa with a presser and clean the powder from the inner wall with an acrylic plate. Make sure that the cocoa appears to be of the same thickness. (The spacer will not collapse when a certain layer thickness is achieved.
Pour more flour on top.
The thickness of the flour should be about 1 cm. It is not necessary to be very careful to make the thickness of the flour even. Pour it in roughly.
Press down firmly. There are many variations in the strength of the pressing, so it is interesting to try changing from weak to strong and see the difference in the formation of the fault.
After cleaning, the second layer of cocoa ....
Press the second layer of cocoa into place and clean the inner walls. Be careful to keep the thickness of the cocoa in line.
Once completed, experiment with the fault! Remove the spacers, insert the push plate into it, and push it horizontally and slowly from side to side.
If time permits, observe in detail the angle of the faults, their spacing, and the shifting of their locations. I have included an example of the analysis in the references at the beginning of this article. Please refer to it.