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I want to share my process of finishing 3D printed parts. I have access to limited resources so I found the best way to give 3D printed parts a professional look. Now no one would say that these were 3D printed but bought off the shelf. Stick around to see how you can do this treatment to your prints.
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Here I am using Acrylic putty. It adheres well to plastic surfaces.
For larger surfaces I used a plate to spread the putty. And for finer details just used my finger. Here because the surface was very porous I used my finger to push in the putty. After applying it on all the surfaces I let it dry for 2 hours before continuing with the next step.
Using some double sided tape I fix the sanding paper to the work table. This is a 200 grit sand paper. Then I place the part and with even pressure start sanding the surface. I check for bumps and continued with sanding till the surface was smooth.
For hard to reach places I cut a strip of sanding paper to make sanding easier.
Moving to 600 grit sandpaper. The bulk of the putty is removed in 200grit sandpaper. The 600 grit just polishes the surface. A point to note will be to use MDF as the base for the sanding paper.
Some of the putty has gone inside the holes. I used a counter sink bit to remove them.
Here is the main speaker housing. I followed the same process. The putty evens out big scratches too. Here is a clear example of how well acrylic putty fills the print layers.
Here is the final piece after sanding.
This is Asian Paints oil based primer. Use very little amount by thinning it properly. I dint do it so I had to sand again after primer. But you can avoid this step if you thin the primer well. This primer usually takes about 30mins to dry.
I bought some gorgeous colors from Asian Paints Royal with Matt finish. I absolutely love matt finishes. This is dark grey color. Just a small amount is enough to get good coverage. Also its water based.
This is the rustic turquoise colour that I used to accent the edges.
Using the Bosny matt clear coat I sealed the paint after it dried. Oh! Btw the yellow colour did not match so I painted that too in grey later. I applied a generous amount of coat. But sprayed it from a distance so it dint clog anywhere spoiling the finish. It repeated this twice at an interval of 2hrs.
Later after removing the painters tape I attached the speakers with some screws. Those white spots at the rim of the speaker were also given a coat of paint.
Using two component epoxy from Araldite is very easy. Just mix and apply and it sets quickly. I applied a thin layer around the speakers and then quickly set the top piece. This hides all the screws and gives a clean look. I designed a printed it in three steps for this purpose.
And here is the final product. Let me know what you think of the finish? Do it still look 3D printed??
Please share this video with all 3D printing enthusiasts so they can learn a few. Please share with me ur questions in the comments. Please follow me on instagram at @mrjcrp to see the latest work in progress. Also #mediamilan whenever you repeat some of the designs shown here. I would love to see them.
Until next time! Happy Learning!!