Many ordinary 3D printers produce defective products. The surface is usually rough, which can not achieve the desired results and may also cause some cost waste.Today we will talk about how to deal with this problem.
6 methods of 3D printing post-processing
1. Sandpaper polishing:
Sandpaper is the most common grinding tools, it is necessary to pay attention to, before grinding to add some water to avoid material too hot hair.Table usually common (400/600/800/1000/1200/1500) the lower grade of sand particles, the greater the print order begins with low grade, but because the item’s surface roughness is different, also can not completely fixed order.Or you could go from 400 to 800, depending on the actual situation at the time.
2. Acetone polishing:
Acetone can also dissolve ABS material, so the ASB model can also be polished with acetone, mainly by steam fumigation of acetone to finish the polishing of the 3D model.PLA materials cannot be polished with acetone.It should be noted that acetone is a harmful chemical substance. It is recommended to complete the operation in a well-ventilated environment and wear safety equipment such as gas masks.
3. PLA polishing fluid:
In fact, it is added with water diluted acrylic glue, the main component is chloroform or chlorothane and other mixed solvents.The operation step is to put the polishing liquid into the operating vessel, and then put the model into the vessel with the added polishing liquid by hanging the model base with iron wire or rope. The soaking time is not suitable for too long, about 8 seconds.Like acetone, PLA polishing fluid is a toxic substance and is recommended to be used with caution.
4, the surface of sandblasting:
This is also a very common way to polish, but also to ensure smooth surface treatment.Operators hand on the nozzle of the model polishing, its principle is the use of compressed air as the power, has caused a high-speed jet beam will be sprayed on the need to deal with the model surface to achieve the role of polishing, sandblasting is faster than grinding.Smooth surfaces can be achieved by sandblasting regardless of the size of the model.
5. Adhesive assembly:
Some oversize and multi-part or detachable printed models often need to be glued.It is best to use a point to wipe the glue, and then fix it with a rubber band to make the glue more compact.If there are gaps or rough contacts in the model during the bonding process, you can also use Bondo glue or filler to smooth it.
6. Color the model
Spray painting method: the operation is relatively simple, more suitable for small model or model detailed part of the color.In order to spray the ideal role, to complete the spraying test, detection operation, concentration is suitable, but also can reasonably prevent the waste of resources.The use of spray paint can also be evenly sprayed on the surface of the model, which greatly saves time.
Hand painting method: it is more suitable to deal with complex details. When coloring, it is necessary to use “#” to paint for two or three times, which can lighten the brush lines caused by hand painting and make the color balanced and full.So that the pigment can be more smooth color uniformity to complete the coating, but also can drop some of the same brand of solvent in the palette to complete the dilution..
