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caitlindevi

Squeak on retraction

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Anyone got any good tips on removing the squeak from the extruder on filament retraction?

Its the ultimaker 2+ and it appears the bowden tube is moving back and forth with the retraction too (even when its fitted nice and flush) but its not the tube making the squeak.

It may be the lever in the extruder holding the bearing that pushes the filament against the feed wheel. Is there a file to print a replacement?

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The bowden should not move up and down with retraction so if it is then follow the steps at the bottom to fix (pasted from elsewhere). If it still squeaks can you make a 10 second video demonstrating? Try pushing and pulling the pla through the feeder by hand while the head is >180C to see if you can duplicate the sound. I'm not familiar with any squeaks.

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How to tighten bowden into head. First remove without scraping it.

1) Loosen the 4 thumb screws 3 full turns.

2) Remove colored C shaped clip

3) Make sure bowden is a bit loose (moves up and down slightly.

4) Push down on outer part while lifting bowden tube.

5) Optionally cut off 2mm

Reverse process:

6) Push bowden all the way in - make damn sure it's all the way - if you have an aluminum spacer above your teflon part then move bowden up and down 20 or 30 times until you know where that aluminimum part starts and ends and you are seated all the way. If you just have a spring - yay - you can see if it is seated in the white teflon part (look carefully at this as you insert as the bowden can easily get stuck on the rim of the white part also!

7) Hold bowden down while lifting clip with other hand (finger nails? needle nose?). Now while holding clip up, let go of bowden and tighten the 4 thumb screws so that the bowden is in tight. At this point you should be able to push up and down on the bowden with 1 kg force and nothing should move.

8) Put the C shaped clip back on.

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