The world is preparing for a second wave of the mutated covid virus Some Patients Left Vulnerable to #COVID Even After Getting Vaccinated | Individuals on immunosuppressant drugs are still at risk: The pandemic in Care Homes was reported. The pandemic in schools is hardly being reported. Silence is the worst form of gaslighting. It induces the "shrugging stage" as I call it aka normalisation. "Well, they're all going to get it at some stage." UPDATE Ten countries in the 27-member EU -- including Belgium, the Netherlands and Poland -- face a #COVID situation of "very high concern", the bloc's diseases agency said Friday, warning the pandemic was worsening across the continent I wish I had good news for you, world , but #COVID19 cases are growing rapidly — at basically the pace we saw this time last year. Positivity rate is also rising, perhaps slightly less dramatically, but still at an aggressive pace. We’re now over 9% Boris Johnson today s...
3D printing is a manufacturing technique, in which parts are manufactured by dividing their 3D designs into very small layers using computer programs
3D printing is a manufacturing technique, in which parts are manufactured by dividing their 3D designs into very small layers using computer programs and then are manufactured using 3D printers by printing a layer over the other until the final shape is formed. [1] This system differs from the molding and sculpting systems, which dissipate more than 90% of the material used in manufacturing [2] and 3D printers are usually faster, moreover, and easier to use than other manufacturing technologies. 3D printers allow developers the ability to print complex interlocking parts. Parts of different materials with different mechanical and physical specifications can also be made and installed together. Advanced 3D printing technologies produce models that closely resemble the look, feel, and functionality of the prototype product.
In recent years, it has become financially feasible to implement 3D printing at the SME level, thereby shifting the modeling from heavy industry to the office environment, at prices up to $ 5,000 for the 3D printer. It can also be applied simultaneously to different groups of materials.
3D printing also offers tremendous displays for production applications. [3] This technology is used in jewelry, shoes, industrial design, architecture, engineering, construction, automobiles, aircraft, dentistry and medical industries.
Many scientists have shown a clear interest in 3D printing since the sixties (1960) of the last century, such as Kodama, Hull and Karl Deckard, but the first appearance of this technology was in the eighties, when he got the first patent on his SLA printer, and was followed After that invention and research, many patents were issued. Jeremy Rifkin, the predictor of the future, considered the three-dimensional printing, the third industrial revolution, after mechanization and assembly in the nineteenth and twentieth centuries, whereby any form and whatever matter is intended for industrialization can be produced, and it also enabled individuals to print their own models without the need for factories under the so-called Make it yourself
The term printing has been associated in the minds of many with two-dimensional products and decorative techniques, whether on paper, fabric, or even photo printing, but that the term printing is related to one of the methods of forming, so workers in the field of industrial design are not used to it. And the method of 3D printing is still under development by some international companies in order to reach a rapid and flexible production of the prototype parts as well as the final parts of the product directly from the model designed on the computer with the help of the AutoCAD program.
This method is unprecedented in flexibility, as it can produce any part or form of engineering and several materials such as porcelain, metals, polymers, and many other compounds. Emmanuelle Sachs invented the 3D printing technology in 1993 and its development continues to this day.
This technique is called by many names such as organic printing, organ printing and computer aided tissue engineering.
Pharmaceutical printing - Tablet printing
The 3D printing technology used in such an industry is raster printing, where the stereotype is printed in a box of powder made from the same medicine to be manufactured, and what is characterized by this technology from others, is that the printed discs are more porous, which facilitates their solubility and absorption and increases their effectiveness, And the first drug made in this way is a drug for epilepsy, which has proven more effective than the medicine manufactured in the traditional way, and the first company to undertake this type of industry is "Aprecia" for the pharmaceutical industries.
Medical print challenges fair
Quality standards: As we mentioned earlier, 3D printing enables hospitals, doctors, and patients to obtain their printed forms according to their desire. These challenges have prompted medical organizations to set specific standards to ensure the quality of printing, such as the “ISO 13485” standard, which compels models to pass within a set of checks To ensure their efficiency and suitability [7].
Medical and organic specifications: The General Organization for Medicines and Food has identified the three main points for accepting any product and these points are: conforming to medical specifications, organic compatibility with the patient's body, as well as the interactive design of the medical device, and it places these three ranges under permanent control [7].
Choosing the right candidate: The medical industry is the same as other industries. It has its limitations, which are represented in the scarcity of materials in addition to the limitations on the size of the printed part.
Ease of design modification.
The ability to copy designs using the first form digital scanning system using a special webcam and software. Then the data is converted to a 3D product of the selected material.
The possibility of obtaining large size parts, protruding parts, interlocking parts, and interlocking parts with an angle of less than 90 degrees which is difficult or impossible to obtain by conventional forming methods.
Integrated material recovery system.
Do not use many tools or devices, thus reducing time and cost.
There are no limits to the complexity of the design.
The triple printing method is superior to the traditional forming methods because the product components in the triple printing method compete with the performance of the similar ones that were made by the traditional forming methods.
Lower cost for complex shapes.
A very short production cycle.