1

I’m printing this barrel on my Ender 3 V3 SE. Hardware wise my printer is basically stock , though I am running Klipper.

This print is basically the tallest thing I’ve ever printed, after 2 years of having the printer, and the quality was great up until about 150mm tall. Much of it I know how to address, but these tendril things are a new problem to me: tendrils emerging from the inside wall of a 3D printed barrel

They basically got built up at a 45 degree angle to vertical (although the broken ones were broken after the fact by being dragged by subsequent stringing.) It appears to be happening on the move from the interior seam to the exterior wall (ie, the layer change), which occurs every second layer (the layers when the infill isn’t being printed.)

I’ve seen stringing before but what confuses me is how these thicker tendrils have grown out into the gap. The filament is also new to me (Creality Hyper PLA) though I ran my normal set of tests I do for a new filament, which probably contributes to the quality being much better in my usual height range.

distracted
  • 111
  • 3

1 Answers1

2

Ordinarily that looks like a mild retraction miscalibration. You could try increasing the retraction speed or distance (how far the extruder pulls back on the molten PLA during a pause). But since the strings didn't start until late in the print I'm going to guess it might be the PLA is a little hotter than you want and is gooping out when the nozzle hits the seam. You could try decreasing the nozzle temp a bit or, if your printer is enclosed, open the doors.

Good choice on the color, btw! I love that tangerine shade of orange.

A good preventative step for the future is doing the occasional retraction test by using a test print like this, start testing at 0mm and gradually increase the distance (and speed) until you get perfect towers printed at your Ender's speed limit.

Peter B Quale
  • 21
  • 1