Quest: the application of linear stepper motor in 3D printer
With the Internet era, the development of technological innovation. Our lives are changing at a time, close to the moment. Just as a 3D printer is a cumulative manufacturing technology, it is a machine that can be quickly formed , and it is a kind of adhesive material that is based on digital model files and uses special wax, powder metal or plastic. A three-dimensional object is created by printing a layer of bonding material. Our Dongguan Heathick learned that at this stage, 3D printers are mainly used to manufacture products and construct new technologies for objects by layer-by-layer printing.
Currently in our common ordinary household-type 3D printer, the linear stepper motor is a very important part of 3D printer in power, Xiao Bian today talking about the basic principles and knowledge of linear stepper motor 3D printer in the above applications, the main It is a summary of the problems that our Heathick technical engineers have touched every day. Some of them can come to know about it. If you don't understand, you can discuss it with Xiaobian! ! ! (*^__^*)嘻嘻...
Linear stepper motor is different from our ordinary AC/DC motor. Ordinary motor rotates by electric power, but linear stepping motor is not. The stepping motor is based on a power motor that receives one instruction and does not have a sliding amount. The distribution of the circumference is the precision of the motor. The size of the step is the precision of the stepping motor, like the stepping motor that we often touch. The week is divided into: 80 steps, 100 steps, 200 steps, 280 steps, 300 steps, and so on. In the 3D printer, the stepper motor is mainly responsible for the Z-axis of the machine lifting (that is, responsible for the thickness of the machine layer) to make an accurate analysis and calculation.
Speaking of this, I believe everyone will have some questions! How do linear stepper motors and chip programs control the thickness of 3D printers? In fact, the stepper motor only drives the rotation of the Z axis, and the rotation on the Z axis drives the machine head in the ascending mode, which results in a layer thickness state. Like some brands of 3D printers, the 50-type stepper motor (that is, the outer diameter of the motor is 50mm) is 200 steps per week and the Z-axis pitch is 1.75mm. In this way, the height of each step of the 3D printed product is calculated as “1.75mm÷200 steps=0.0875mm layer thicknessâ€, and the X axis and the Y axis are the same principle, which has reached the accuracy of one hair, but This is not the result of the final confirmation in practice. In our technical engineer, this can actually use the programming technique to divide the stepping motor into 20 steps, that is, 0.0875mm and then divide 20 by 0.004375. This number is already lower than the molecular weight of the printed material, so it is only According to the layer thickness, it is determined that the accuracy is accurate. Of course, it is not impossible to master the core technology to achieve this.
In 3D printers, the stability and running accuracy of linear stepper motors directly affect the printing problems of 3D printers. In-depth discussion of the knowledge of stepping motors has a very important role in the maintenance and maintenance of 3D printers in the future. In the near future, 3D printing will add a surprise to our lives!
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