3D Printing Model Surface Finishing Polishing Technology

- Mar 09, 2019-


3D printing model surface finishing polishing technology


   Samples printed on a 3d printer will have a circle of texture, which is inherent in its characteristics. If the printing accuracy is not high, there will be obvious step effect, which will greatly reduce the aesthetics of the sample, so some people say that 3D printed products can only be viewed from a distance, not close to play.


   Although most players don't care too much about the problem of the grain, it is inevitable that there are still children's shoes that want to make a light and shiny effect, so there is a need for a method, a variety of polishing techniques came into being, today's pineapple three-dimensional Let us know about several polishing techniques.


First, the fire roasting method


  The easiest way is to not need a variety of equipment, you only need a lighter to simply polish the surface of the model. How to do it? The method is very simple, it is to burn the burrs with fire. It is worth noting that it is necessary to pay attention to safety when burning ABS with fire. It is necessary to pay attention to ventilation. It is still tasteful when it is burned, and it is to avoid causing fire.


Second, acetone polishing method


  It is the acetone polishing that is often mentioned. The 3D model is fumigated with acetone vapor, and the model is polished by the characteristics of ABS dissolved in acetone. The most important thing to pay attention to when using acetone polishing is safety. Acetone is toxic, flammable, explosive and irritating. It is recommended to use acetone polishing to wear safety equipment such as gas masks in a good ventilation environment.


Third, the vibration polishing machine


  Polishing using a vibratory polisher or polishing by a centrifugal polisher, the main principle is to achieve polishing by collision friction between the medium and the model.


Fourth, sandpaper grinding method


   Sanding with sandpaper, the tools used in this method are also relatively simple, mainly sandpaper, sanding rods and the like. 600 or 800 water sandpaper, 1000 water sandpaper, 1200 water sandpaper, 1500 water sandpaper, one bowl of water, one toothpaste, one clean glasses cloth.


  Water sandpaper is to add a little water when grinding. The bigger the number, the finer the sandpaper. Use 800 to finish grinding with 1000. After the grinding, the parts will be dull. At this time, use the toothpaste to rub the parts on the cloth to restore the luster. However, the sandpaper is slow to polish and the effect is not satisfactory.


Five, pearl treatment


   The pearlizing treatment is a method in which the hand-held nozzle ejects the medium beads toward the polishing object at a high speed to achieve polishing. The advantage is that the pearl treatment is generally faster, and the treatment can be completed in about 5 to 10 minutes. After the treatment, the surface of the product is smooth, better than the polishing effect, and different effects depending on the material.

It also has disadvantages, one is expensive, and the other is because pearl treatment is usually carried out in a closed chamber, so it can handle objects that are limited in size, usually the model is small, and the whole process needs Holding the nozzle by hand is inefficient and cannot be applied in batches.


Six, 3D model polishing fluid


   Some people can also use 3D model polishing liquid to polish. After putting the polishing liquid into the operation vessel, the model is hanged with the wire or rope on the model base, and the model is immersed for about 8 seconds. It is polished according to the temperature and environment of different regions. The effect is properly adjusted and should not be soaked for too long.


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