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Bowden tube noise and play issue. Any help appreciated.


aaron
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Posted · Bowden tube noise and play issue. Any help appreciated.

I have read other posts but I have not seen an issue exactly like mine.

I am having slight retraction issues (like many others on these forums). The cause of it is on the feeder end (cold end). I have printed the shim found here: http://www.thingiverse.com/thing:46157/#instructions

It still has some play and every time it retracts, it makes a grinding/screeching sound similar to that of a rocking chair. Does anyone else have this issue? Is there a way to orient the tube to fix this? Any help is appreciated. Thanks.

 

 

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    Posted · Bowden tube noise and play issue. Any help appreciated.

    I think it is more likely that the cog is making the noise.

    Is there a lot of room between the cog and the delrin gear?

    Is there anything grinding against the wooden cog?

    Maybe a part from the extruder drive upgrade?

     

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    Posted · Bowden tube noise and play issue. Any help appreciated.

    There isn't much room at all. I spaced the mesh so that the teeth were only .5mm apart. I still think that it is the tube moving just a little in the housing. I think this because it would make a worse sound before I printed the shim. I could even see when the noise would start and stop. When it retracted, the tube would move up a little and make the screeching noise. Then, when it extended, the tube would move back down and make a similar noise. Any way I can make it stop omitting such a terrible noise or hold it place better?

     

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    Posted · Bowden tube noise and play issue. Any help appreciated.

    Have a look at the back of your extruder gear, and see if it's getting marked up. Mine would screech during retraction, and it was because the wooden gear was scraping over the heads of the screws that hold the extruder assembly together.

     

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    Posted · Bowden tube noise and play issue. Any help appreciated.

    Well, I checked the gear and there were no scratches on it. I ended up moving the tube around a little and then replaces the shim. Now it is quiet again. Still not sure why it still had some play, but I am glad it is stationary now. Thanks for the quick and helpful responses. Much appreciated.

     

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    Posted · Bowden tube noise and play issue. Any help appreciated.

    I switched filament and now the noise has almost vanished. Not sure why. Maybe Ultimaker gray filament is a little on the sticky side.

     

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