Eryone PETG-CF – Print Detached at Layer 829

[racabu]

Printer & Filament Details:

• Printer Model: Bambu Lab X1C
• Filament Used: Eryone PETG-CF
• Bed Adhesion: PEI Textured Plate, No Brim or Skirt Used
• Additional Hardware: Anti-Vibration Feet installed

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The Issue:

I was printing multiple parts on one plate, and at layer 829, one of the pieces detached and fell over. I believe the printer bounced too much, potentially due to:

• High acceleration settings
• Speed settings causing vibrations
• Anti-Vibration Feet making the printer move more

Since I’m printing with PETG-CF, I want to maintain print speed as much as possible without sacrificing stability.

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Full Slicer Settings (Bambu Studio)

Speed Settings:

• Initial Layer Speed: 35 mm/s
• Outer Wall: 200 mm/s
• Inner Wall: 300 mm/s
• Small Perimeters: 50% mm/s
• Sparse Infill: 270 mm/s
• Internal Solid Infill: 250 mm/s
• Top Surface: 200 mm/s
• Overhang Speed: 0 / 20 / 20 / 10 mm/s
• Bridge Speed: 30 mm/s
• Gap Infill: 250 mm/s
• Support Speed: 150 mm/s
• Support Interface Speed: 80 mm/s
• Travel Speed: 500 mm/s

Acceleration Settings:

• Normal Printing: 8000 mm/s²
• Initial Layer: 500 mm/s²
• Outer Wall: 5000 mm/s²
• Inner Wall: 0 mm/s² (Disabled)
• Top Surface: 2000 mm/s²
• Sparse Infill: 100% mm/s²

Bed Adhesion & Support Settings:

• Skirt Loops: 0
• Skirt Height: 1 layer
• Brim: Currently Disabled (Considering Enabling)
• Brim Width (If Used): 5 mm (Might Increase to 8-10mm)
• Brim-Object Gap: 0.1 mm

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Changes I’m Considering:

Testing Without Anti-Vibration Feet

I’ve noticed some users say Anti-Vibration Feet can make tall prints less stable by allowing slight movement in the printer itself.
I’m considering removing them to test if print stability improves.

Adjusting Acceleration & Speed

Lower Acceleration (8000 → 5000-6000 mm/s²) to reduce sudden printer movement.
Reduce Inner Wall Speed (300 → 200-250 mm/s) for better adhesion and stability.

Enabling a Brim or Raft

Brim (5-10mm): Helps with adhesion but may not be enough at high layers.
Raft: Might offer more stability but increases print time and material use.

Printing Parts Separately Instead of Multiple on One Plate

Reduces risk of vibration affecting tall parts.

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Questions for the Community:

• Would removing Anti-Vibration Feet improve stability for PETG-CF?
• Would a brim (5-10mm) be enough, or should I go straight to a raft?
• Are my speed/acceleration settings too aggressive for PETG-CF?
• Has anyone else experienced detachment at high layers with PETG-CF?

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Any help would be greatly appreciated! Thanks in advance. I’ll share my results after testing!

Photos & 3MF File:

AMS+Stacking+System.3mf (2.1 MB)

[JonRaymond]

@racabu

one of the pieces detached and fell over

This is a bed adhesion problem. Clean your bed and add a skirt (with 0 object brim gap) if it is a tall part.

[racabu]

Update: Issue Resolved!

Thanks for the feedback! I made the following changes and successfully printed all parts without detachment:

Adjustments That Worked:

Reduced Acceleration:

• Normal Printing: 8000 → 6000 mm/s²
• Outer Wall: 5000 → 4000 mm/s²
• Inner Wall (Enabled & Set to 2500 mm/s²)

Lowered Speed for Stability:

• Inner Wall: 300 → 250 mm/s
• Internal Solid Infill: 250 → 200 mm/s

Used a Brim (10mm Width)

• Improved bed adhesion and helped prevent part detachment.

Printed One Part at a Time

• Avoided the risk of one part failing & knocking over others.

Results:

• No print failures at high layers.
• Better stability & adhesion with the brim.
• No visible quality loss with the new settings.

Final Thoughts:

If you’re printing Eryone PETG-CF on the Bambu X1C (and with a high part), I recommend:
Tuning acceleration & inner wall speed
Using a brim for better adhesion
Printing parts separately for taller prints

Thanks again for the help! Marking this as solved.