Notifications
Clear all

Filament Jammed 3/4's of way down PTFE tube  

  RSS
auto303615
(@auto303615)
New Member
Filament Jammed 3/4's of way down PTFE tube

Folks,

   Repeat event here.  After few hours of printing my extruder stops extruding.  Filament stops flowing.  If I am near the machine, I hear the clicking of the stepper as it tries to force the filament down the PTFE, but the mass that forms at the bottom of the filament stops all flow.

   I have adjusted the tension on the idler screw that holds the filament gears together.  Any ideas?

 

This topic was modified 1 year ago by auto303615
Posted : 27/06/2020 4:23 pm
auto303615
(@auto303615)
New Member
Topic starter answered:
RE: Filament Jammed 3/4's of way down PTFE tube

Update:  I increased layer size from 0.05 to 0.15 and the print worked without jamming.  No other changes.

What do I have wrong at the lower layer size?

Posted : 29/06/2020 11:09 am
JoanTabb
(@joantabb)
Moderator
RE: Filament Jammed 3/4's of way down PTFE tube

Try reducing your retraction to say 0.4mm or 0.2mmthis will reduce the amount of hot filament pumped back into the heat break on every retraction

 

regards joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 29/06/2020 11:54 am
Share: