Print text without blobs

[Gero 54]

Does anyone know which settings I can use to ensure that no additional blobs are printed in printed text?
In the example shown, sharp corners in the "W" and other letters are displayed with additional blobs. 

When I print prototypes in PLA, these do not bother me much. But here the whole thing is to be printed in TPU. These additional blobs are very noticeable and lead to extrusion problems due to additional retractions. 

In fact, the text would be even more covered with these blobs, but by switching off "Print thin walls" most of them are already filtered out here. 

I have already experimented with different settings and values but have not yet managed to get the text to print without extra spots. 

 

 

[43915 16]

It looks like the sides of that part all lean towards the middle, and I assume that the text is cut straight in from the surface it's on? As in, the text cutout is tilted slightly toward the middle as well, and the top and bottom layers of the text are not completely parallel to the buildplate? A bit hard to describe what I mean in text, I hope you understand.

 

If that is the case, the upper parts of smaller details in the letters will be isolated areas, or peaks, that are impossible to print without having a seam and retraction at that specific place. If the letters were cut completely straight relative to the buildplate you could get rid of those blobs by specifying where the Z-seam should be (as in anywhere else than on the letters, depending on your preferences).

 

I could have a better look and test it out if you are able to share the model or a package file, it's a bit hard to see on the image exactly how the letters are modelled.

Edited March 15, 2023 by 43915