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Filament feeder nuts too small

I've been facing this problem since I started using the machine. I believe the opening in the filament feeder nuts is too small and often causes the filament to get stuck. As far as I can tell there are 3 nuts attached to the tubes and the filament (Maxx from leapfrog) often gets stuck until I find the exact angle and really jam it through them. Once they're in, it's mostly fine. Very annoying when loading new filament. 

Recently some filament got stuck in the nut closest to the extruder and now I can't get it in or out. I tried to grab it with some pliers but the top just broke off. It's stuck and I can't easily remove the nut because a small standard adjustable wrench won't fit in the space to get hold of the nut.

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I have also problems while feeding the filament; I can'tfeed it normal, and also slips while it is printing, that makes holes and have to interrupt the print.

Did they give you a solution?


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Filament Guide

  • Extrude at ~ 225o C.
  • Requires heated bed.
  • Works reasonably well without cooling.
  • Adheres best to polyimide tape.
  • Filament tolerances are usually tighter.
  • Prone to cracking, delamination, and wraping.
  • More flexible.
  • Can be bonded using adhesives or solvents(Acetone or MEK).
  • Fumes are unpleasent in enclosed areas.
  • Oil Based.
  • Extrude at ~ 180-225o C.
  • Benefits from heated bed.
  • Benefits greatly from cooling while printing.
  • Adheres well to a variety of surfaces.
  • Finer feature detail possible on a well calibrated machine.
  • Prone to curling of corners and overhangs.
  • More brittle.
  • Can be bonded using adhesives.
  • More pleasant smell when extruded.
  • Plant Based.

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