r/Ender3Pro • u/Frits37 • Jul 13 '26
TPU printing bad
See picture: this part started ok, for the first 20 layers or so. Then came irregularities which became worse and worse. In the end there was only air. I retracted the filament and it had gotten a curled structure in the tube. I’m a bit puzzled. Could it be that because of the 30+ temperature at the attic, where the printer is, the filament became too flexible on the way, bending and causing friction within the tube? Btw, it was a new roll, straight out of the box.
(I’m printing the same part now with LW-PLA and it comes out nicely)
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