When they speak of an iron hand, they usually mean simply a mock-up, or a bionic prosthesis. Within the framework of the article, it will be told how the first sample is made, and how it is converted into the second one. But before we consider how an iron hand is made with our own hands, let's consider what science has achieved now.
On the state of affairs
Another 50 years ago, a man who lost his leg or arm, could only dream that he could once make up for his loss through scientific developments. And not just to get something, but to be able to function as if the body were in place. Now the creation of iron hands is engaged in a fairly large number of companies and equipment lovers. Simple devices that can not perform the actions of fingers are called simply prostheses. While those that can capture signals from the human brain and react to them - bionic hands. Because of the high cost to afford such a device can not everyone, but you can do it yourself. Iron hand can not turn out to be as perfect as industrial designs, but even this option is better than nothing at all. And now we suggest that you familiarize yourself with the construction of such a device and how it is done.
Device
The usual "cosmetic" iron hand externally repeats the outlines of the human. It can be made of plastic and already look like ordinary, or metal - in such cases, it is usually covered with synthetic leather. Bionic iron hand is arranged in this way: when a person wants to move a finger, the brain sends an appropriate impulse to the muscles. Sensors catch these signals due to a reduction in surviving muscles. Each sensor is responsible for its "field of activity", so if it fixes the impulse, then a certain finger will shrink. The possibilities of using this technology are wide, and even if the arm was injured above the elbow, the normal functioning of the prosthesis is carried out without problems.
Installation process
To connect and configure the operation of an iron hand, it may take 5-30 days. Time depends on the size of the part being replaced, the patient's illnesses and problems, as well as his age. Then you need to get used to the new limb and understand how it should be managed. This process usually lasts a week for young people, it can take a month for pensioners. But, alas, the use of an iron hand is not always possible. The point is that if too much time has elapsed since the limb was amputated, then the musculature will atrophy, and then the device will be managed with considerable difficulties or in general the signals will be too weak. The iron hand, made by hand , has those features that it will be necessary to study the anatomical structure of your case, in order to establish and then adjust the placement of this device.
Capabilities
The more difficult and expensive an iron hand is, the more it looks like a human. So, if we discard cosmetic devices and deal exclusively with bionics, then we can say that the simplest models usually can perform only one grasping movement. More complex can perform dozens of movements, but the cost of creating such equipment will be much higher. An iron hand, made by hand , can perform several movements or only one. But even at home, you can create a technique that can satisfy the main range of applications.
Reduced price
The cost of conventional prostheses varies within the limits of 500,000 - 5,000,000 rubles, and given their dependence on the price of the currency (for the overwhelming majority of technology is imported), this price can significantly increase. But there is a potential for cheapening - 3D printers. Most of the foreign samples printed in this way can boast a price of 100 000 - 150 000 rubles. The greatest success was achieved by the Ukrainian Viktor Baklan, who was able to create a bioelectric prosthesis to hold things at a price of only 1500 hryvnia (4,500 for our money). This solution is a very effective answer to the question: "How to make an iron 3D hand with your own hands." It also shows that this technology has a significant future here.
How to create a "cosmetic" iron hand?
With what to begin? Let's say you want to make such an object as the hand of an iron man. To create her minimally necessary set - a file, a soldering iron and a desire to work. All this is necessary if it is created from metal. When working with other materials, the set will change. So, first you need to determine the parameters of your own hand and make the initial design. And further on it will be put on additional components. The most important part here is the frame. You can follow certain patterns, developing an already worked-out concept, or start your own creativity. If there is no desire or opportunity to devote a considerable amount of time to this, the hand of an iron man from paper is the simplest option. True, it is at the same time the least durable.
How to create your own bionic arm?
This point is already more complicated. It should be noted that if you do not have enough experience in creating such devices, then it is unlikely to work creatively. Therefore, it will be necessary to completely follow the design indicated in the subject. To realize the movement mechanism, servomotors can be used as the most suitable for the volume / power ratio. At work it will be necessary to always be careful, and do everything carefully. An important step is to configure the sensors in such a way that they receive signals for the fingers that follow (in this you will help book on the anatomy of the hand). Of course, from the first time it will not work out, so you'll have to hone it up and bring the technology to mind, but the result will be very rewarding.
Conclusion
You, based on the designs presented here, can develop their own versions of iron hands. They can differ in appearance, and in terms of functionality and functionality. Of course, at first it will be difficult, but then you can create different designs "for all occasions." In addition, if the goal was set and the search for how to make an iron hand was started, then already part of the way is passed. It is necessary only not to stop.