Printing TPU FAIL!

[ArrmaK8]

Hello!
Ive recently got TPU but when I tried printing something, the first layers were good but at the end (top) it messes up, look at the picture.

OVERTURE TPU
Flow: 110%
Nozzle temp: 210
Bed temp: 50
Fan speed: 0%

 

[RC-Dude]

Get your flow down. If you print something solid with higher than 100% it's a guarantee to mess up. Material has no place to go to.
Fan speed to 20%, 40%+ on a small part like that.
What is your speed?

 

[ArrmaK8]

Get your flow down. If you print something solid with higher than 100% it's a guarantee to mess up. Material has no place to go to.
Fan speed to 20%.
What is your speed?

Ive tried 60, and then 40. No sucess...

 

[RC-Dude]

Flow down to 100%. Try again. And turn on the fan so the layers are hard when the next one comes on top. Effect and cause here are correlating. As always when printing.
There is a learning curve to it. That's normal.

 

[ArrmaK8]

Flow down to 100%. Try again. And turn on the fan so the layers are hard when the next one comes on top. Effect and cause here are correlating. As always when printing.
There is a learning curve to it. That's normal.

Ill try 100% flow, and 20% fan speed and then experiment with the settings.

 

[Tex Koder]

Is it a Bowden or Direct Drive?

 

[ArrmaK8]

Is it a Bowden or Direct Drive?

Direct drive, Dremel 3D45

 

[Tex Koder]

Direct drive, Dremel 3D45

What's your Retraction Distance and Speeds at?

 

[ArrmaK8]

What's your Retraction Distance and Speeds at?

Speed 40mm/s, and retraction speed is 65 or 70. Idk.

 

[Tex Koder]

Speed 40mm/s, and retraction speed is 65 or 70. Idk.

Check your Retraction Distance

For Directdrive it should be around 2mm
or Less

 

[ArrmaK8]

Check your Retraction Distance

For Directdrive it should be around 2mm
or Less

I use the orginal Dremel software and it was set as that. But when I change the speed it also changes the retraction speed. But what does it mean?

 

[Tex Koder]

Crank it down a bit more to 35mm/s for print speed.

 

[ArrmaK8]

Crank it down a bit more to 35mm/s for print speed.

Ohhh you meant retraction distance, i read it wrong.

Check your Retraction Distance

For Directdrive it should be around 2mm
or Less

It was 3mm before. Ill print it again, see you in 6 min

Ohhh you meant retraction distance, i read it wrong.

It was 3mm before. Ill print it again, see you in 6 min

40% fan
2mm retraction distance
35mm/s
210C
50C

 

[fredw90]

I print TPU with 100% fan speed.

 

[ArrmaK8]

I print TPU with 100% fan speed.

If it works, i wont touch it.