#Help with strange TPU issues.

1 messages · Page 1 of 1 (latest)

gritty vigil
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For context Im using a Flashforge Adventurer 3 with Esun 95A TPU filament.
I know its a bowden extruder which makes tpu very hard to print however Im using the same print settings as in this video: https://www.youtube.com/watch?v=DLIAhDbq6oM . My issue is that the very first layer prints well with nice thick lines and great bed adhesion. However all following layers are this extremely thin wispy lines. Any help or tips would be greatly appreciated!

first_layer.jpg base.jpg
YouTube
Just Make It Daniel!
TPU with the Adventurer 4! (Flashforge Doesn't Support This)

TPU is a very difficult material to print when using a bowden style extruder. I thought I would give it a shot on my Flashforge Adventurer 4 for science because its not listed as a supporter material by the company.

Here are my settings:
Nozzle Temp: 210C
Bed Temp: 40C
Layer Height: 0.2mm
Print Speed: 20mm/s
Retraction length: 4mm
Retraction Sp...

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verbal coveBOT
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AI Help

It sounds like you're experiencing an issue with thin, wispy lines on your Flashforge Adventurer 3 while printing with TPU filament. Here are a few troubleshooting steps you can try:

  1. Check the TPU filament diameter: Make sure that the filament diameter matches the settings in your slicing software. If the filament thickness is incorrect, it can affect the extrusion flow.

  2. Increase the printing temperature: TPU filament generally requires a higher printing temperature. Try gradually increasing the temperature from the recommended range specified by the manufacturer and check if it improves the extrusion.

  3. Adjust the print speed: Slow down the print speed, especially for the initial layers, to allow better adhesion and more consistent extrusion. Experiment with reducing the speed until you find a balance between adhesion and print quality.

  4. Check the extruder tension: Ensure that the extruder tension is properly adjusted. If it's too tight, it may cause inconsistent feedi...

WARNING: This response is AI generated and may contain errors.
whole grove
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Going to second the bot on increasing temps and potentially lowering your print speed. Usually when you get those thing whispy bits printing TPU it's because the filament isn't fully melting in the hotend and therefore isn't extruding fully.

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I'd try both in steps and see if the print quality improves, then keep bumping them until it's consistent.

gritty vigil
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sounds like a plan! Ill try again tonight and see if i get better results. I was using a print speed of 20 mm/s and a hot end temp of 230 degrees C for context