3D printing has been known to everyone - whether it's newspapers, blogs or TVs, you can see information about 3D printing. Therefore, what this information conveys to the public is that in the future, whether we are at home or in a print shop, we can download the data model, or build a model with an application such as CAD, and then easily put it through a 3D printing device. print it out. But in fact, as far as current technology development is concerned, we should know that 3D printing is still exaggerated.
As a 3D printing practitioner, in the past two years, I have produced more than 5,000 3D printing models, operating the machine every day, explaining the specific requirements for making 3D models to the public and the industry, and responding to 10,000 from all over the world. Multiple emails designed by enthusiasts. Share some of your own insights and experiences gained from communication.
Let people look forward to the world of 3D printing
Such a 3D printed product has shocked the manufacturing industry. When many people see it at first sight, they mistakenly believe that it is made up of a combination of materials such as metal, plastic and rubber. But this is not the case. The finished product is completely printed from plastic powder and sprayed accordingly. The ink is colored. In other words, this thing is like a plaster statue collection when you were a child.
Similar to this, with complex structures and 3D printing products with special luster, they are mostly made on machines worth hundreds of thousands of pounds, and then spend a lot of energy and time, followed by professionals. . Many ordinary consumers in the news saw 3D printed tables, architectural models, and even pistols exclaimed "Wow! I can do it all at home, this is the future."
But the fact is that even though 3D printing technology has been widely used around the world, it does not mean that consumers can complete this task at home. The development of 3D printing technology is still mixed with some hype.
People's expectations for 3D printing
People have seen the use of 3D printing technology to make violins, complex shoes, etc., in fact, these products are from a 3D printer. 3D printing equipment is quite expensive and high-end, involving laser technology and a large number of resin consumables, but many people think that they can do not have to invest too much, receive professional training, only on a $800 3D printer. What he wants. Imagine that you live on a planet that has never seen a car before. One day, the newspaper began to report on the car. "A car with a top speed of 250 mph and a maximum of 10 people can cost 300. The US dollar will inevitably begin to doubt the authenticity of this news. After all, the cost of an emerging technology will gradually decrease as the technology matures. In this way, most people's cognition is more one-sided than the current 3D technology.
Face the true strength of 3D printing products!
For parts, 3D printed products do not have as much strength as parts produced by traditional manufacturing. In the 3D printing process, these products are stacked in a layer-by-layer printing process, which is both its greatest advantage and its biggest drawback. For example, traditionally cast parts have a uniform, stable strength in cross-section due to the high consistency of the material structure. But the finished product of 3D printing is constructed in layers, which means that the bond strength between each layer and each layer has a fatal weakness, because the bond strength of such products on the Z axis is much higher than that. The bonding strength of the X-axis or the Y-axis is poor. If you want to describe the Z-axis adhesion, it's like using Lego bricks to build a wall - you put all the bricks together and press them together, feel the strength is enough, but it is easy to push it from the side It collapsed because the bond strength between each layer of the building wall and each layer is relatively low.
What does surface treatment affect?
The surface of the 3D printed product that people see is smooth, but in fact, the surface of the semi-finished product that has just been printed is very rough, and the staff uses a variety of post-processing methods to make the semi-finished product smooth and shiny, but these treatments are usually It takes a lot of labor and uses acetone chemicals, and this type of treatment will make it difficult to control the accuracy of 3D printed parts, and it is easy to lose details beyond the tolerable tolerance.
A correct understanding of the cost!
The cost of a 3D printed product depends on the amount of material used, so a higher quality product is more expensive, and a smaller quality product is relatively inexpensive, and that's it. It has nothing to do with the complexity and number of parts that the outside world thinks. Because its biggest advantage is that it does not require machining - this opens the door to opportunities for designers. Like a number Like printing technology, 3D printing is also not printed.
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