Made of 5.1 channel cement speakers from head, CEMENT SPEAKER
Keywords: self-made 5.1 channel cement speakers
Making the sound is not difficult to do, but once, it is difficult to make it difficult to add from the first two words. What you face is to put a bunch of raw materials into a specific product. I have done a similar project before, so I've said something to Markus Egger. First of all, I will explain the hardships from the head, such as the website. In fact, the interface that users can see is only a small part of the overall work, a large number of system architecture layout, code debugging and logical laws, are everyone Can't see (I am doing a website, so familiar with this). That is to say, the raw material preparation often accounts for more than half of the overall time. For example, a simple 5.1 channel audio (still mentioned), if we follow from the beginning (not buying a piece of parts), you will see how hard it will, let me decoriate the specific steps, as A complement to the previous monk article: In the engineering drawing, it is difficult to fall into a large number of people, not only to understand the basic knowledge of acoustic, how to vibrate in the cavity, but also according to the size of the speaker Design specific data, and take into account the appearance factor, eventually form a drawing. The drawings will be described in detail from the six directions to exactly to millimeters. The framework of the entire audio housing is described in this step. Now, it is a very good raw material for the sound of the sound. Because it is not only easy to cut and the density is highly acoustic, followed by ABS engineering plastic, this is not as good as wood but easier to plastic Suitable for mass production, the best material is also the highest density material is stone, but the cutting process is too high, so it is not easy to make. Here this high person wants to challenge, using cement, not only plastic, but also guaranteed density. However, the difficulty of making it is quite big. Let's take a look at what it is necessary to prepare: First, since it is mentioned that the cement can not be said, the reinforced cement is a family. Because the pure cement solidification will decrease, the possibility of broken down is large, so it is necessary to cooperate with a steel bar. Here, the wire wire in the form of a matrix is used next to two sets of molds: returns to the drawings that started to say, and the drawing does not only record the size of the sound while recording the size of the mold that can be wrapped outside the tank outside the box. After cutting the wooden board of the mold by size, apply the mold to the wax. The purpose of the wax is to easily separate the cabinet with the mold when the cement is filled in molding. The next step is to do an internal mode: the inner mold generally selects the material of paraffin, and there are two benefits of paraffin to be extremely easy to shape, and it can melt. Once the box is molded, only a medium that can melt is flowed out. Here, it has to be pointed out that the combination of cement and paraffin has been perfect because the surface layer is attached to a layer of paraffin coating after cement molding, which allows the media to be very delicate, and the feel is very good. The form of the rule can be cut by cutting, but it is necessary to do separately, and use nails to fix them. For surgery, the preparation is ready, let's review, the previous drawings, wood cutting The outer mold, the inner mold of paraffin combination, fixed wire mesh. Here, I have to talk about my article, once you choose to do something from the head, you have to be mentally prepared, even when you have done two-thirds, others ask you how you can come up. You can only The answer is in progress, because the preparation stage is too time, and we have not required to rework time, so once you decide to take advantage of these things, you have to consider these, and you have to stick to the confidence . The circuit part is relatively simple is a divider. It is responsible for separating the treble bass. Although there is a simple thing, it is necessary to consider, and who told us to start with the head. We must consider whether the size can be plugged into the box, whether the number of coils match the speaker, the copper wire of the winding coil can pass a series of current (power decision), etc., if you want to work around the coil, self-weld the board, The whole project is more interesting, you will have a feeling of God, pinch a bunch of soil into a personal type. The black color cylindrical is the electrolytic capacitor, the white color is square, and the green color of the green color is a ceramic capacitor. There are two divided coil groups (here you also want to do it yourself. Will teach you) The full set of equipment is ready, officially start assembling, compared to the previous preparation process, these steps seem to be relatively pediatric, and the light looks at the picture, to mention the picture above In the inner mold, two copper catheters are in the last trace, if the cement is solidified, it is not good. Beginning to inject cement pay attention to do not generate air bubbles, you can properly knock outside the mold to make the cement to fill to each corner. Then cover the left wooden board on the outer mold and reinforce it with a screw, properly spray some water to accelerate the solidification of the cement, and improve its toughness, and the rest is patience to wait for two days. Don't forget that we do it but 5.1 channel sound, so the whole is two sets of molds, satellite audio, a set of subwoofers, and the process of satellite audio is repeated 5 times. Here again prove that it is difficult to do things from the head.
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