I want to learn how to carve and draw on soft stone

This kind is not suitable for carving knives, because the texture of pebbles is stronger than seals, so it is not suitable for carving and painting with a carving knife.

In the past, the common method that can be applied to the folk is to first polish the pebbles smooth, wrap the stone with wax, and then use carving knives and crochet needles to draw patterns on the wax, and then put the finished product into sulfuric acid or nitric acid, the specific proportion I do not know.

However, it should be noted that the shallow and deep layers are carried out one after the other, taking advantage of the different degrees of corrosion to create a progressive feeling.

Finally, the stone is soaked in water and cleaned, or directly put into the pot to boil, so that the wax can be removed at the same time, but alkali needs to be added.

In addition, there are micro carvings with drill bits, which are more expensive than this method, and the advantage is that the processing speed is fast.

Finally, laser engraving is now less troublesome, but the cost is much higher and not suitable for individuals.

I don't know about the other methods.

Hand painted stones can be painted with acrylic paint.

Acrylic paint, good adhesion, not easy to fade, but dry quickly, not easy to change.

Acrylic dries quickly, this pigment is required to be thin, thick if you tear it by hand, it will fall off, tear it off like soft rubber, and if you don't master the moisture, it will crack in the case of hot and dry.

Acrylic does dry quickly, but it can be mixed, not so fast, as long as the action is not too slow, the pigment will remain moist for a minute or two, and even if the pigment block is larger, ten minutes is no problem, dry fast mainly after the average spread.

Go for an apprenticeship with a folk artist, or buy some books and teach yourself.

The engraving on the cobblestone requires digital engraving, and the specific operation steps are as follows.

The engraving on the cobblestones is digitally engraved.

1. Turn on the computer cutting plotter and put the materials to be engraved.

<>3. Open the Wentai Engraving 2018 software, set the size, and press "Create New File".

4. Select "Read", and select the PLT format you just exported in the file type.

5. Click "Read in" the content in PLT format.

6. "Engraving Output".

7. Done. <>

Notes:Design and typesetting are carried out through the special engraving software configured in the computer, and the information of design and typesetting is automatically transmitted to the degree engraving machine controller by the computer;

The controller converts this information into a signal (pulse train) with power that can drive a stepper motor or servo motor, and controls the main machine of the engraving machine to generate the engraving path diameter of the X, Y, and Z axes;

The high-speed rotating engraving head on the engraving machine can cut the processing material fixed on the workbench of the host through the tool configured according to the processing material, and then carve out various flat or three-dimensional relief graphics and words designed in the computer, so as to realize the automatic operation of engraving.

If you want to engrave by yourself, you have to buy a special tool, an electric engraving machine. It's not easy to grasp this kind of investment. You only play with the method of painting once in a while, first use a pencil to make a base, and then use acrylic paint to color, the painting is very beautiful, and the color will not fall, not afraid of washing.

I hope you will adopt this method.

You need a grinding machine, which is the machine that carves jade.

I carved it with a nail, and then I used the ink to touch it to wash off the many places.

Go find a seal engraving shop, he can help you get it.

The engraving on the cobblestone requires digital engraving, and the specific operation steps are as follows.

Grinding tools and materials include polishing machine, grinding wheel, sand cloth, sand paper, water sand paper, chromium oxide, polishing paste, etc. This process is carried out according to the artistic effect, some are completely polished, and some are partially polished.

There are 3 common polishing methods.

1. Use a grinding machine for polishing.

2. Use a disc polishing machine for polishing.

3. The vibrating polishing machine is generally suitable for large-scale polishing.

Commonly used tools. Engraving grinding machine (it is recommended to use a grinding machine with a flexible shaft, with a flexible shaft, it is more flexible and convenient to use.) ）

Some corresponding diamond grinding heads and jade strip files and sandpaper, etc.

Some corresponding wool felt and cowhide and rubber grinding wheels and brushes, etc.

Some polishing powder or polishing paste and polishing wax.

Fixing glue used when engraving.

The grinding stone used in the vibrating polisher.

Polishing: The gap is generally polished with a brush for groove seams, and bamboo skewers or bamboo chopsticks can be used to glue polishing powder, and the surface is generally smeared with polishing paste with a felt wheel or a good diamond polishing powder is used to polish the surface.

Hand grinding and polishing method: first use 600 sandpaper for rough polishing, then use fine sandpaper for 2000 fine polishing, and then use block cowhide to glue jade polishing powder for fine polishing. (Note: The friction speed of the manual is slower, so the time is longer).

Glazing: 1. Clean the surface of the stone.

Depending on the stone surface, different cleaning materials and cleaning methods can be taken. Generally speaking, you can soak the stone in water for a period of time, and then use a brush to clean the dirt off after the surface dirt has softened; If the dirt is difficult to clean, you can also use some dilute hydrochloric acid as a detergent to clean it. However, if it is a soft stone, try not to use dilute hydrochloric acid to prevent the stone surface and color from being damaged.

The general principle is to keep the original color and skin of the stone intact as much as possible.

2. Cool and dry the stones.

Method. 1. Cool and dry naturally; Method.

2. Heating and drying. The heating method can be heated with an electric hair dryer. This method is relatively easy to master, and it is also relatively safe and simple. You can also choose a hot day when the sun is shining to expose the stones to heat. or in other ways that you think is feasible; Method.

3. You can also roast wax while heating. General principle: The purpose of heating the stone is to make it easy for the wax to soak into the stone.

3. Use wax materials.

Generally speaking, the easier to find wax material is the white mineral wax that is usually used for lighting. Of course, there are also other hard wax materials. Another wax material is liquid wax.

The liquid wax I usually use is the liquid wax used for polishing the dial of a car. It should be emphasized here that if this kind of automotive liquid wax is used, the heating process can also be omitted for the stone. Because the liquid wax of the car is easy to encounter high temperatures, it is easy to cause safety accidents if it is not mastered well.

4. Wax (roasted wax).

For hard wax, you can also use a heating tool (such as an electric hair dryer) to aim the wax material while heating, so that the wax slowly soaks into the stone.