When talking about an iron hand, they usually mean either just a model or a bionic prosthesis. The article will explain how the first sample is made, and how it is turned into the second. But before considering how to make an iron hand with your own hands, let's look at what science has achieved now.
On the state of affairs
About 50 years ago, a person who lost his leg or arm could only dream that someday he would be able to make up for his loss thanks to scientific developments. And not just to get something, but to be able to function as if an organ were in place. Now a fairly large number of companies and technology lovers are engaged in the creation of iron hands. Simple devices that cannot perform finger actions are called prostheses. Whereas those that can capture signals from the human brain and respond to them with bionic hands. Due to the high cost, not everyone can afford such a device, but you can do it yourself. An iron
hand with your own hands may not be as perfect as
industrial designs, but even such an option is better than nothing at all. And now we offer to familiarize yourself with how such a device is built and how it is made.
Device
The usual “cosmetic” iron hand externally follows the outline of a human. It can be made of plastic and already look like ordinary, or from metal - in such cases it is usually covered with synthetic leather. The bionic iron arm is structured this way: when a person wants to move a finger, the brain sends a corresponding impulse to the muscles. Sensors pick up these signals due to the reduction in surviving muscles. Each sensor is responsible for its "field of activity", so if it detects an impulse, then a certain finger will contract. The possibilities of using this technology are wide, and even if the arm above the elbow was damaged, the normal functioning of the prosthesis is carried out without problems.
Installation process
It may take 5-30 days to connect and set up an iron hand. Time depends on the size of the replaced part of the body, diseases and problems of the patient, as well as his age. Then you need to get used to the new limb and understand how it should be managed. Usually this process lasts a week for young people, it can take a month for senior citizens. But, alas, using an iron hand is not always possible. The fact is that if too much time has passed since the amputation of the limb, then the muscles will atrophy, and then the device will be controlled with significant difficulties or in general the signals will be too weak. An iron hand made by one’s own hands has those features that it will still be necessary to study the anatomical structure of his work in order to establish and then adjust the placement of this device.
Opportunities
The more complicated and expensive an iron hand is, the more it looks like a human hand. So, if we discard cosmetic devices and deal exclusively with bionics, then we can say that the simplest models can usually make only one grasping movement. Dozens of movements can perform more complex ones, but the cost of creating such a technique will be much higher. A
self- made iron
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.
Cheaper
The cost of conventional prostheses ranges from 500,000 to 5,000,000 rubles, and given their dependence on the price of the currency (for the vast majority of equipment is imports), this price can increase significantly. But there is a potential cost reduction - 3D printers. Most foreign samples printed in this way can boast a price of 100,000 - 150,000 rubles. The greatest success was achieved by Ukrainian Viktor Baklan, who was able to create a bioelectric prosthesis to hold things at the price of only 1,500 hryvnias (4,500 with 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.
How to create a “cosmetic” iron hand?
Where to start? Let's say you want to make an object like the hand of an iron man. To create her minimum necessary set - a file, a soldering iron and a desire to work. All this is necessary if it will be created from metal. When working with other materials, the set will change. So, first you need to decide on the parameters of your own hand and make the initial design. And then on it will be put on additional components. The most important part here is the frame. You can follow certain drawings, developing an already developed concept, or start your own creativity. If there is no desire or opportunity to devote considerable time to this, the hand of an iron man made of paper is the easiest option. True, it is at the same time the least durable.
How to create your own bionic hand?
This item is already more complicated. It should be noted that if you do not have enough experience in creating such devices, then here it is unlikely to be creative. Therefore, it will be necessary to fully follow the design specified in the topic. To implement the movement mechanism, servomotors can be used as the most suitable in terms of volume / power ratio. When working, you will always need to be careful, and do everything carefully. An important step is to configure the sensors so that they receive signals for the fingers that follow (a book on hand anatomy will help you with this). Of course, the first time it won’t work out, so you’ll additionally have to hone and bring the technique to mind, but the result can greatly please.
Conclusion
Based on the designs presented here, you can develop your own versions of iron hands. They can differ both in appearance and in capabilities and functionality. Of course, at first it will be difficult, but then you can create various designs "for all occasions." In addition, if a goal was set and the search began for how to make an iron hand, then part of the path has already been completed. It is only necessary not to stop.