If you’ve ever had a printed piece in 3D, or you have a printer at home and factories things with some frequency, you’ll see that the finish is not quite perfect. This occurs even if you select the print quality high, with the corresponding delay in making the piece.
The trick is to use products that smooth printed 3D parts, although we have to be very careful so that these processes of grinding and polishing not be harmful for health. In Xataka Smart Home have already talked about some alternative such as PolySmooth and Polysher, but with pieces made in ABS or PLA we can achieve an almost perfect finish and bright.
Certainly the solution PolySmooth, a strand that is soluble in alcohol, and Polysher, a camera that exposes the piece to the compound, is clearly better. But if we do not want to invest more and need a piece with a practically perfect finish We can follow the instructions in this video from YouTube.
Acetone is a fairly powerful solvent that can undo the ABS, one of the most used in the 3D printing materials with the permission of the PLA. The trick then is to create vapors from acetone to soften the model. As they have in the video, need a tray, a vessel in which loosely fit model to soften and a platform of metal, along with a paper towel and a piece of cardboard.
You must place the model and platform in the tray, fold a paper towel and place it in the bottom of the glass. Then we have to hold it with cardboard and soak the towel with acetone. Put the glass on model and pour water into the tray to make acetone fumes do not escape. Important because acetone vapours are toxic, so better do it in a well-ventilated place.
Once achieved the result we want, remove the glass and allow the model to dry it. As you can see in the video also can speed up the process if We introduce a small fan in the House to force the flow of steam to go polishing workpiece.
If we use PLA as impression material, we can use another method of grinding parts. The PLA is soluble in tetrahydrofuran (THF), with what can simply use sticks of cotton with the substance or a cloth to smooth surface.