Dried TPU worse than non dried?

[lapis aspen]

Hi guys. I have an A1 mini and want to print TPU. First, I tried printing without drying and that resulted in a lot of stringing, so I bought a dryer. However, after using that dryer, the prints are a lot worse now and it looks like there are many bubbles coming from the print. The only difference (without counting the dryer) is the fact that I printed 4 at the same time after I dried, but I don't think that contributed to the bad prints?

[modest patio]

AI Help

It's possible that the increased presence of bubbles in your prints could be due to the drying process. Drying TPU can sometimes cause it to expand and create bubbles within the filament, leading to issues during the printing process. Printing multiple parts at once shouldn't typically cause this problem.

To troubleshoot, you may want to try adjusting your print settings, such as decreasing the print speed or increasing the retraction settings to reduce stringing. Additionally, double-check that your TPU is properly reeled after drying to avoid any possible contaminants or inconsistencies in the filament. If the issue persists, consider reaching out to the manufacturer for further assistance.

WARNING: This response is AI generated and may contain errors.

[lapis aspen]

The 4 dried ones on the left, the right was printed before drying but it is much better

On top the dried ones are definitely nicer though with less stringing

These were all printed in this orientation

[lapis aspen]

So why do the left ones after drying look so poor??

[modest patio]

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[tidal mulch]

Try rerunning all the filament auto calibrations.
And \ or switch to the bambu tpu profile.