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I am experiencing some retraction noises with my Titan Extruder. At first the noise was more of a clicking noise, and the gear was skipping. I didn't feel any backlash with my finger but I still followed the official troubleshooting guide on backlash and the noise has changed to some sort of buzzing, with print quality noticeably improving.

I should mention I recently upgraded my stepper drivers to TMC2208, extruder set to 1.31V. May be too much but I know the extruder motor needs a whole lot of torque, either way it doesn't run too hot so I'm keeping that for now. (If anyone knows how warm should a motor feel during normal operation let me know.)

I have two videos of the noise before and the noise after. I can't tell where this noise is coming from, I have never heard weird motor noises before so I can't tell if it's still the extruder or if it's the motor. I can't tell if it's normal.

I tried feeding filament in and out with GCode to find out the feedrate at which the noise goes away, and I found that anything above F2200 makes it do this noise, otherwise it's a pretty normal noise.

Before:

After:

0scar
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Guido Belluomo
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1 Answers1

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After several email exchanges with the customer support, I was not able to find an answer. It was stated that it may have been my assembly and/or extruder mount, but I'm strongly against that after so many times reassembling.

Gear backlash ended up becoming permanent.

I ended up switching over to something else with a more self-sufficient design and less variables.

Guido Belluomo
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