3DPrinting

15577 readers

74 users here now

3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

The r/functionalprint community is now located at: !functionalprint@kbin.social or !functionalprint@fedia.io

There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml

Rules

No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia. Code of Conduct.
Be respectful, especially when disagreeing. Everyone should feel welcome here.
No porn (NSFW prints are acceptable but must be marked NSFW)
No Ads / Spamming / Guerrilla Marketing
Do not create links to reddit
If you see an issue please flag it
No guns
No injury gore posts

If you need an easy way to host pictures, https://catbox.moe may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is ![](URL)

Moderation policy: Light, mostly invisible

founded 1 year ago

MODERATORS

andypiper@lemmy.world

henry_rowengartner@lemmy.world

j4k3@lemmy.world

GrayBackgroundMusic@lemm.ee

Have you ever seen this type of print failure? (lemmy.world)

submitted 11 months ago by nucleative@lemmy.world to c/3dprinting@lemmy.world

13 comments fedilink hide all child comments

Pretty sure I'm having heat creep up the Bowden tube, as it's getting jammed a few cm back from the hot end and then can't push the filament any more. When I get it out there's a little molten bulb at the filament.

In this fail, I think it jammed as usual and the extruder found a way to keep going.

I tried turning down the hot end from 215 to 200 and it's still failing. My cooling fan is running at 100%.

This is the third time I've had this print fail at about this layer, around 1 hour into what will be a 26 hour print.

Any ideas?

you are viewing a single comment's thread
view the rest of the comments

[–] marcos@lemmy.world 6 points 11 months ago* (last edited 11 months ago)

Well, if you found the jam inside the bowden tube, there's no reason to keep second-guessing, it's jammed.

If it always happen at the same point, I'd look at what the printer does differently there. For example, I know that if I set the cooling fan on my printer to more than 10%, it almost immediately jams (due to a design problem). But since it's all the way into the tube, I'd suspect some absurdly large retraction.

Or, maybe, look for another heat source near the failure point. It doesn't take a lot to bulge PLA, any electronics touching it may be enough.

(But just to add, yeah, jamming either looks like that or the extruder eats up the filament and loses contact. The better designed your extruder is, the more likely that it will look like that.)