Random artifacts  

Random artifacts

Hi there,

I was wondering if someone could help me with a small issue I’ve noticed on a particular print?

I needed to print four identical PLA parts. They’re being used to locate the bottom of a garden shed frame evenly, with the correct overlap on a concrete foundation, and will only be used once. The defects in the prints don’t affect their function, but I’d like to get to the bottom of it in case I print something in future where quality is more critical.

As for the prints themselves: the first one #3, I printed standing vertically with supports and a brim. This turned out okay. However, since I needed three more, I decided to try a different orientation.

The second one #1, was printed in the orientation shown in the photo, again with the necessary supports and brim. It was in this orientation that I noticed a distinct line in the print, along with a clear layer shift.

Thinking this might be axis-related, I rotated the print 90 degrees (viewed from above) and printed it again. Interestingly, the defect appears in exactly the same place. There are other minor imperfections across the prints, but none as obvious or consistent as the two lines you’ll see in the photo—especially given they occur in almost the same position despite different orientations.

I’ve checked the belts and haven’t had any issues prior to this. I’ve also reviewed the model, and there are definitely no defects in the design itself. The printer is a Core One, only about four months old, and has had relatively low use.

Appreciate any help or insight anyone can offer.