TPU Filament Issues

[TheMainMan 0]

I am using an Ultimaker S3 (two AA print cores) to print a design with orange tough PLA (on spool 1) and grey TPU90A (on spool 2), both are Polymaker filaments.

 

However, I told Cura and the printer's interface that I was using TPU95A because that was the only TPU option. Even when using a prime tower, the TPU immensely oozes out of nozzle 2 while nozzle 1 is active. This leaves TPU debris all over the the print itself, and the print bed.

 

What specific change(s) need to be made in Cura in order to prevent all the TPU oozing, which ruins the print and wastes filament?

 

 

 

 

[Slashee_the_Cow 272]

About the most important setting when it comes to TPU is retraction - it needs to retract a lot further than other materials (on my E3V3SE I retract PLA 0.8mm and TPU 3mm).

[Dustin 130]

TPU are not all the same, I would recommend doing some print tuning for the TPU itself first before attempting this.