PLA-CF printing problems

Moin, wie entstehen solche Fehler und wie kann ich sie beheben. Bin leider mit meinen Fachkenntnissen am Ende. Das Bauteil ist eine Werkzeugaufnahme für einen Werkzeugausgangsflansch nach ISO 9409-1-50-4-M6 eines Cobots der eSeries_UR3e. Das Bauteil wird wie folgt gedruckt:

Hello, how do such errors occur and how can I fix them. Unfortunately I’m at the end of my skillset. The component is a tool holder for a tool output flange according to ISO 9409-1-50-4-M6 of an eSeries_UR3e cobot. The part is printed as follows:

Die betroffene Flächen hat einen Überhang von 45°.

The affected area has an overhang of 45°.

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how should we help you if you dont give us any information…where´s the fault…i dont see any problem…maybe you mean the rough overhang area…what material is that…what print temps…and so on…dont expect help if you dont deliver the input, we need. more detailed pics…

could be alot…printed with support? not enough cooling for overhangs…

Material PLA-CF wie es bereits in dem Titel steht. Einstellungen sind so geblieben wie sie von Bambu Studio vorgegebenen sind.

Material PLA-CF as already stated in the title. Settings have remained as specified by Bambu Studio.

Die Druckqualität ist an den Überhängen sehr schlecht. Dabei sind es nur 45°

Support hab ich bereits im CAD berücksichtigt mit einer Wandstärke (0,42mm, auf dem Bild grün) Dadurch umgehe ich den Support vom Bambu Studio.

The print quality is very poor on the overhangs. It’s only 45°.
I have already considered support in the CAD with a wall thickness (0.42mm, green in the picture). This way I bypass the support from Bambu Studio.



@Johannes_Office there is a dedicated German section here if you’d like to continue posting in German. Otherwise, English would be preferred since you’re in the English section of the forum.

as i can´t find the colour in the bambu shop i guess its some 3rd party filament…so the bambu filament profil is just a first step. you should take the time to dial in the filament profile is it printed with the 0.4 nozzle? depending on the carbon fibre lenght it could be better to print with 0.6 nozzle… your constructed support looks like it support only the outer part and thats maybe not enough. from center part to the outer egde where your support is, it still had to print without support. No matter what material…if i need perfect supported surfaces i use my ams and dedicated support material.

My self-constructed support works wonderfully, our engineers use this method for almost all of our products. It saves time and more than 60% of material compared to normal support. The filament is from Bambu Lab and I use a 0.4mm nozzle. I think it’s more of a cooling issue. If I rotate the component, the problem only occurs on the side facing away from the aux fan. I’ve tried different positions, but one side is always affected. It does not matter whether the side is with or without an overhang.







AFAIK PLA-CF prints without the AUX fan. This looks like poor overlay of the top layers on the infill, but I think it should be reinforced by “ensure vertical shell thickness” by default and that would looks different. This looks too thin.
Use a different infill pattern (gyroid), don’t use grid.
Increase the number of top layers.
Try using a lower layer height (smaller height = better overhangs).
Try using a larger extrusion width.
Use more perimeters.
Set minimal thickness for top/bottom layers.

And I have to ask - are you sure PLA-CF is the right material for this? Are you sure this print orientation is suitable for it?