Easy Way to Smooth PLA | No Sanding

cults3d

I've been working with 3D printing for about four years now, and I have to admit that smoothing PLA filament has always been a challenge. After accidentally spraying Polyurethane on my 3D model, I decided to test if it was thick enough to fill in the layers quickly. To my surprise, it works! I put a lot of effort into creating this video, so be sure to check it out as well. You'll need: * A 3D printed object with visible layer lines * Any spray paint that bonds well to plastic * Fast-drying Polyurethane - Clear Satin First, clean the model thoroughly to remove any dust or debris. Next, apply your chosen color of spray paint to the model. Then, quickly spray a layer of Polyurethane over the top. Place the model under a fan to prevent drips and speed up the drying process. The mixture of paint and Polyurethane will fill in the layers, holes, and printed flaws. The thinner each layer and the longer you let it dry, the better your results will be. I waited 20 minutes between layers and an entire day before applying a final coat of spray paint to cover any discoloration. Note that printing at a high layer height can result in lost detail, as seen with my skull print at 0.3mm. A lower height of 0.1mm would have produced better results and required less time to smooth. However, I needed an extreme layer height to demonstrate the effectiveness of this method. Please read and follow all safety warnings on spray cans and 3D printers. I hope someone finds this helpful! Be sure to check out my YouTube channel - 3DSage for more fun videos! https://www.youtube.com/watch?v=rn4edNztaPU