Post #458216

2025-08-11 07:34 UTC

There are a lot of warnings for CF / GF loaded 3D printing filaments, so I wanted to see what&#39;s going on. I printed a piece of Prusament PP-CF and it felt like a Kiwi fruit! The @FabLabMuc SEM Pics explain why: There are tons of exposed Carbon Fibers on the surface! It&#39;s pretty rough overall, doesn&#39;t look like any other 3D print I&#39;ve seen before. I&#39;m surprised how many of these fibers just stick out, like they&#39;re not embedded in the plastic at all! The last pic is of a broken edge.

Replies (7)

@pandora@chaos.social 2025-08-11 07:35

@gigabecquerel @FabLabMuc oh wow really interesting and cool pictures

Open ##1873749
@wolf480pl@mstdn.io 2025-08-11 07:42

@gigabecquerel @FabLabMuc do you know how that compares to a carbon fiber + resin composite that was cut and/or sanded down after hardening?

Open ##1873750
@f4grx@chaos.social 2025-08-11 08:10

@gigabecquerel @FabLabMuc is it actually stronger than normal filament at least?

Open ##1873752
@privateger@plasmatrap.com 2025-08-11 09:39

@gigabecquerel@chaos.social @FabLabMuc@muenchen.social Nathan did a deep dive video on this before, this happens with a surprising amount of materials. https://youtu.be/ddwNZ12_qX8

Open ##1873756
@PatrickHerd@aus.social 2025-08-11 10:31

@gigabecquerel @FabLabMuc @Nixie I think you were dojng some CF printing recently?

Open ##1873757
@raspberryswirl@chaos.social 2025-08-11 15:51

@gigabecquerel @FabLabMuc almost looks like the new asbestos😕

Open ##1873765
@kater_s@chaos.social 2025-08-16 07:26

@gigabecquerel @FabLabMuc Did you also make pics of the filament‘s surface before printing? At least it was extruded once then. Not sure if I would want to use these materials anytime for hobby printing purposes…

Open ##1873766