After Han Peacock gets the stabilized molar blank, he first lays it out according to the required design size. Which part to keep can only be decided according to personal preference. The direction of the pattern, the size of the pattern and
and color, etc., trace the shape on the molars, and then use a small cutting piece to cut off the excess.
After rough cutting the shape, perform precise datum grinding. At this time, you can use a belt sander, sandpaper or emery disc, and a diamond file. For curved shapes, you can use an emery grinding head or an ordinary grinding head.
The minimum mesh size of the abrasive belt used by the belt sander should be as much as 80 meshes. Small mesh sizes will pull out hard particles from molar fossils with soft and hard structures because of the large sand grains. As a result, there will be many blisters on the surface of the molar teeth.
After the datum surface is ground, if it is fixed with gong nails, drilling must be done. Drilling the molar teeth is a difficult point. First, draw the positioning point for drilling, and use a PCB tungsten steel drill bit to drill the hole. The diameter of the drill bit should be Φ1.5 or less.
, put a steel plate under the molars to prevent the back of the mouth from exploding when the hole is about to be drilled.
Because the molar teeth have a soft and hard structure, it is difficult to ensure the accuracy of the hole position. In this case, you can use an emery grinding needle to expand the hole and make corrections!
Directly use an emery grinding needle to drill holes, it is better to go slower, try to choose a grinding needle with a larger diameter (good rigidity), the pressure is uniform and small, don't rush!
The counterbore can be ground directly with a spherical grinding head, which is easier to master.
During this process, be sure to remember not to use a thick drill bit to drill holes. This will have a large cutting surface and will pull out the petrified hard particles of the molar teeth, and in severe cases, they will break!
When sanding with a belt machine or sandpaper, try to sand in the direction of the grain, just like wood planing. It is very difficult to plan against the grain, and it is not smooth at the same time.
For rough-machined molars, after drilling holes, tighten them on the knife support. Grinding the shape with a belt sander is very fast, but you need to grind from both ends to the middle. This prevents edge defects from occurring when grinding to the edge in one direction.
The occurrence of angles.
Using sandpaper or a diamond file to polish the shape manually is just less efficient and takes longer.
A small chamfering belt sander and sandpaper are almost the same. Flat sanding can grind the thickness to the appropriate size. At this time, the belt sander is much faster!
After grinding the shape of the molar teeth, use a small grinding head to trim the concave arc. At this point, the rough grinding is complete!
The next step is to work carefully. Use an 80-grit grinding disc or sandpaper to polish and trim the shape. Gradually increase the mesh number for fine grinding. Until the mesh is 800, remove the molars and coat the entire molars with ordinary epoxy resin.
When the molar processing is almost completed, resin coating should be carried out once. The purpose of this is to fill and cover the blisters left during the processing or stabilization! It is almost like woodworking putty.
First, heat the molars to about 50-60 degrees with a hot air cylinder or oven. Apply the resin evenly to the entire molars while it is hot. After 24 hours of complete curing, use sandpaper to polish off the thin layer of resin until the mesh number is 1000, such as
If you want it to be perfect, you can sprinkle polishing powder on a soft cloth and polish it back and forth. For flat polishing, it will be better to put a piece of glass under the cloth!
During this period, there are many things to pay attention to. For example, the molars after stabilization are no longer afraid of water, but the size will be slightly larger after being soaked in water, because the bone and semi-petrified parts have increased in size after absorbing water!
The entire process of fine machining is best carried out in a dry state, which can reduce deformation and ensure dimensional stability.
If the molars are accidentally deformed, they can be heated to 70-80 degrees and pressed with a flat object. They can be straightened when the molars return to normal temperature, because resin is malleable at high temperatures.
Since it was the first time to cut ivory, the texture of the ivory that Han Kongque selected was not the best, and most of the ivory made was made of knife handle material.
Of course, Han Kongque has not forgotten the ivory comb, but it is not difficult to make an ivory comb. Besides, a dozen or so combs are enough. On the contrary, more knife handle materials are needed. After all, many of his men like to use them.
Swords, especially those of the Miao guards under him, are almost equal to one sword in each hand.
Han Kongque also liked to use knives, so he planned to make several ivory knife handles and put them on the knives.
The knife handle material is simple to make. In fact, it is only used by Han Peacock to practice his skills. However, Bingya is actually used for carving, and the knife handle material is the most suitable for practicing.
However, practicing requires step by step, so Han Peacock has been processing Tuya recently. Don’t think that there are no Tuya in the Arctic Circle, because in the past century, the temperature in the Arctic Circle has been rising, so in some places
The frozen soil layer has also begun to merge.
Some mammoths that were buried relatively shallowly melted out of the permafrost, forming soil tusks of the worst quality, and the soil tusks were even more widely distributed!
For several days, Han Peacock was out searching for mammoth fossils buried in the soil during the day, and practicing in the chaotic space at night, while his men took advantage of the cold night to work outside.
Of course, part of the reason why they dig at night is to avoid human prying eyes. After all, what Han Kongque and his colleagues are doing is illegal, whether in the United States or Canada.
In order to avoid trouble, I spent the past few days wandering around looking for mammoth fossils and marking them, and at night I started digging around with the excavator.
After digging a lot, Han Peacock has no shortage of materials for practicing, especially Tuya. Most of the heartwood of Tuya has been weathered away, forming a "pink heart", so it can only be used.
The outer skin is so thick that it is called "tooth skin".
There are many cracks in the tuya, and different geographical environments give it colorful colors! It is really ever-changing and the camouflage is attractive!
In fact, Tuya is more malleable. It’s just a matter of color. The inside is still white when opened, but each one will change color to varying degrees. Such knife handles are very popular when they are made.
So recently, Han Peacock has added several ivory carving apprentices to his side. They are both male and female. Some of them are making ivory combs, and some are making knife handles. It can be said that it is very lively.
Of course, Korean Peacock is the most professional here. If you get a piece of ivory, you have rich experience and good eyesight. You can basically tell what the texture is and whether the cracks are deep without removing the outer skin.
Generally, those with shallow cracks and no hidden dangers of delamination can be used directly as knife handles. Those with deep cracks that are prone to delamination should be picked out for treatment. Those with deep cracks and a tendency to delamination should also be processed.
can be used.
It is not a big problem to pick out good tooth skin and directly make the handle of the knife, but as time goes by, it will definitely shrink. Then there is the problem of cracks. The teeth begin to petrify and crack in the soil.
The cracks are the beginning of petrification. They usually form white powders such as "calcium carbonate", so the cracks are mostly gray-white. This place is a good place for water to hide and needs to be dealt with!
Petrochemicals with deep cracks will be heavy and will break into pieces in the future. At the same time, it will cause the cracks to expand. Gray and white delamination lines can be seen in the cross section. If not treated in time for a long time, the delamination will be completely separated and you will be charged!
Use petrochemical heavy untreated tooth leather to make the handle. If you wipe it with oily substances, the result will be accelerated delamination.
Everyone knows that freshly cut wood needs to be dried in the shade for many years before it is used, and the same goes for toothpaste!
The newly dug tooth skin has left its original environment and is completely exposed to the air. Its internal structure will undergo changes, including physical and chemical changes, and will therefore show symptoms such as deformation, bending, delamination, etc., so
It's better to do some simple stabilization, even if it's just superficial.
Everyone is familiar with using tooth skin as a knife handle. It is more ideal to reuse the tooth skin after it has been stabilized. However, there is a problem here. Before treatment, the light-colored cracks are very consistent with the background color.
However, after the stabilization treatment, the cracks and all the fine cracks have turned dark brown, which has changed the original color matching. This must be foreseen. In addition, the areas with separation layers will also turn dark.
Already.
Many foreign knives have stabilized tooth skins. You can identify them if you look closely at the pictures. However, stabilizing the tooth skin is as difficult as wood. If the requirements are not high, let’s talk about it. After all, the tooth skin itself has a high density.
Yes, it is no problem to just do simple processing and practicality.
With Han Kongque, it didn't take long for everyone in his escort to replace their sword handles with ivory ones, and Han Kongque had already changed his target at this time.
After all, after making too many knife handles, I will get bored. So today, Han Peacock plans to deal with the ice teeth. "Ice teeth" generally refer to the mammoth tusks dug out of the frozen soil. The texture is the same as modern elephant tusks.
, are mostly used as carving raw materials, and are also first-class when used to make knife handles, but most people will not waste it like this.
Most ice teeth are not petrified, so there are few surface cracks, and the color is mostly milky white. Freshly dug ice teeth cannot be used directly. They often need to be dried in the shade for several years before making the handle, otherwise they will shrink.
bigger.
In addition, the surface has no texture and the price is extremely high, so ice teeth used on knives are not too popular.
Of course, Han Kongque didn't plan to continue making knife handles, so he planned to use Bingya to carve some fine products.
Exquisite and simple ivory products have been common in history. In modern times, ivory products have become even more ingenious, and the representative one is the craftsmanship ball.
Ivory is one of the well-known contraband items in the literary and entertainment circles, but ivory carvings have a very long history, starting from the Neolithic Age. As early as the Paleolithic Age, the cavemen living in Zhoukoudian used ivory carvings for decoration.
Be buried with him.
The glorious history of ivory has been recorded in "Historical Records of the Weizi Family": "Zhou began as an elephant hairpin."
Emperors of the Liao, Jin, Yuan, Ming and Qing dynasties all used ivory as royal offerings. The orchard factory in the Ming Dynasty and the manufacturing office in the Qing Dynasty had workshops that made ivory products for the palace. The most representative one is the ivory masterpiece "Moon".
Manqingyou".
This time, Han Kongque planned to carve "Yueman Qingyou". Han Kongque had always wanted to collect Yueman Qingyou atlas, but he had never found it, so this time he planned to challenge himself and see if he could carve such a
A set of twelve pictures of Yue Man’s Qingyou. (To be continued.)