Outer Wall Line Separation

Just started exploring 3D printing and ran into a snag with my X1C printer. The outer walls of my prints feel a bit weak where they transition from the base to standing up vertically. Not sure where to start or what questions to ask. Any help for a newbie like me would be fantastic!



It’s important that you use a chamfer rather than a fillet. A fillet will create a severe overhang which will look ugly when printed. A chamfer is normally a straight 45 degree wall which the printer will handle very nicely.

If you still want a fillet on the bottom of your print you can start with a chamfer and then fillet the top edge of that chamfer. By doing it this way you avoid creating a bad overhang. The picture shows the difference. Notice the red highlighted overhang which will be difficult to print compared to the easy 45 degree angle of the chamfer+fillet combo.

Thanks for the feedback @JonRaymond, much appreciated. I will take a look at that

I also just realized looking at the pictures closely. I have a similar artifact across different prints.

That is a seam and is normal.

It looks like those edges were both printed as overhangs? Judging by the pattern on the top of each print.

If that’s the case, you should be able to get better print quality in those regions by reducing your print speed by 2-5x.

There’s a new setting in the latest slicer update that supposedly improves overhang printing, but I have yet to try it. Above a certain speed, overhang quality is just hard to manage.

This guy made a nice video on the subject