1 Topic by satman49

  • satman49
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Topic: filament tangling

Has this happened to anybody else? Was printing right along and  this happened while I was a away for  a few minutes. It has a new hot end which was tested before I started the print. All was well.It acts like the extruder temp dropped but it hadn't (195)

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SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.

2 Reply by elmoret

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Re: filament tangling

It's one of the issues with Lawsy's mk4 design - there's an unconstrained section between the drive wheel and the top of the PEEK/PTFE insulator. Usually it's fine, but if the filament is getting too warm before feeding into the hotend, or the hotend isn't hot enough (resulting in excessive force to extrude) then it'll do that.

Filastruder - the robust, inexpensive filament extruder
E3Dv6 All Metal Hotend - the premier 3D printing hotend

3 Reply by Manx

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Re: filament tangling

i must admit i have not hadthat happen i've had it bind on the spool and then tangle around the spool holder

4 Reply by satman49

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Re: filament tangling

Take look at your peek. Is what I am calling for lack of better word, the white filament funnel at the top. Is it flush with the top of the peek or protruding a bit? I put a new hot end on tonight. It was flush before I installed it but after an hour or so into a print it protrudes about 2mm above the peek.

SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.

5 Reply by elmoret

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Re: filament tangling

satman49 wrote:

Take look at your peek. Is what I am calling for lack of better word, the white filament funnel at the top. Is it flush with the top of the peek or protruding a bit? I put a new hot end on tonight. It was flush before I installed it but after an hour or so into a print it protrudes about 2mm above the peek.

That's PTFE, and the fact it's moving up isn't great.

Filastruder - the robust, inexpensive filament extruder
E3Dv6 All Metal Hotend - the premier 3D printing hotend

6 Reply by satman49

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Re: filament tangling

Here another pic  that may be the culprit.  As you can see filament is being forced out below the peek around the brass tube. That is when the filament starts to back up and tangle.

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7 Reply by Puck

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Re: filament tangling

satman49 wrote:

Here another pic  that may be the culprit.  As you can see filament is being forced out below the peek around the brass tube. That is when the filament starts to back up and tangle.


I had the oozing and tangling problem the other day too. The culprit was a filament guide tube pulling the filament too taught. After removing the tube I have yet to have the same problem.