YouTuber compares methods for post-processing 3D prints

In a new video on his YouTube channel, well-known YouTuber HEN3DRIK tests different methods for post-processing and finishing 3D prints. Using the example of printed pins from the Star Trek universe, he demonstrates techniques that are suitable for amateurs through to more elaborate professional methods.

Both FDM and resin 3D printing of the pins were tested. According to HEN3DRIK, resin printing inherently delivers smooth surfaces and requires little rework. With FDM printing, however, the layer lines remain visible.

As minimal post-processing, HEN3DRIK simply painted the prints with gold and chrome spray paint. The result is usable for simple applications, but does not achieve professional quality.

Painting with special paints and an airbrush is much more complex. For this, the surfaces must be sanded and primed beforehand. According to HEN3DRIK, a very glossy and uniform paint finish can be achieved in this way.

The best results are achieved by galvanic processes. Here, a conductive copper layer is first applied and electrolytically reinforced. After polishing, visually appealing layers of nickel and gold can be applied by electrolytic deposition.

Overall, the video illustrates the possibilities for post-processing 3D prints. Depending on the objective – from simple painting to a refined surface – various processes would be available.