I’m encountering a recurring issue with a rolling pin model I’m printing on both my Bambu Lab X1C and A1. The model is flawless, and the rest of the print comes out beautifully, but I keep getting a strange artifact at the very beginning of the print, during the first few layers (images attached for reference).
Here’s what I’ve tried so far:
• Verified the model (no issues found).
• Adjusted seam settings (currently using Smart Scarf Seam with “Back” position).
• Ensured the print starts with a clean and level bed.
• Used consistent layer heights (no variable layer heights).
Current Settings:
• Cooling: No cooling for the first layer, fan speeds ramp up from 60%-80% after layer 1.
• Material: PLA Matte filament with great adhesion and consistency.
• Layer height: 0.2mm throughout.
• Seam position: “Back” with Smart Scarf Seam enabled.
I suspect this might be related to cooling (or possibly insufficient airflow during the initial layers). My part cooling fan starts at layer 2, but I’m considering enabling it earlier or increasing the minimum speed.
I’ll admit I’m very new to the cooling/heating adjustments, so I’m not really sure what to try.
If anyone has encountered this before or has suggestions on tweaks to seam settings, cooling profiles, or other factors, I’d really appreciate your input!
I applaud you for making the effort to post a clear image. However, you left out a critical piece of information: what did the model look like in your slicer? Can you share a screenshot of the slicer image after it was sliced?
Based on the surface marks, I’m willing to bet that what you’re showing isn’t how it was printed, is it?
Isn’t this more likely the orientation it had on the bed?
I think it’s because the forum link from Makerworld dumps people into the Makerworld section of the forum. I feel this is how a large amount of people find the forum.
@Olias, you’re correct that details do matter, and i didn’t mean to misinform in any way. And I should have sent more images. So here are the images and screenshots of my cylinder (this is a rolling pin I designed).
But it seems that it was the overhang speed issue.
I took @moonrakerone advice and used his speed settings. It almost fixed it. Then I walked through the Flow Dynamic Calibration on my X1C. And tried it again.
Perfect print today!
Thanks so much for chiming in and giving your two cents guys!
Thanks for sharing your success and closing the loop. It is a good feeling when that happens.
One more thing that you can explore if there is interest. Take a look at using scarf joints to mitigate the seem on this object. It is designed ideally for reducing this line pictured here.
Here’s a test model and video that does a good job of covering this subject. I’ve been really pleased with the results and have even used it when making threads, where seams can really wreak havoc.
I’m going to be uploading my final version of this model today, and i have the scarf seam on. I’d really love it if you could print just the little part of the rolling pin and see what print settings i could adjust in the scarf seam to make it better.
That print looks great! One caution though - especially with “filled” filaments, they can shed bits of filling and plastic. Since that’s a dough roller, it might be an issue to consider.
