Whispy stringing even with combing turned on

[K8tie 0]

Hello!

I wanted to print this gear heart in Ziro Red PLA and I'm getting these whispy strings. I've played with temperature, going as low as 185 and as high as 215.

I've played with various retraction settings (as per internet advice) and also have combing turned on. I perhaps wrongly thought that having combing on would reduce these strings to zero. I'm completely at a loss and wondered if there might be something in cura that I am missing?

I've attached pictures of the model, the side showing the hole was the first layer on the build plate.

Thank you!

K8tie x

[burtoogle 513]

WRT combing, use the not in skin combing and also set the max comb distance with no retract to a low value, e.g. 10.

[K8tie 0]

7 hours ago, burtoogle said:

WRT combing, use the not in skin combing and also set the max comb distance with no retract to a low value, e.g. 10.

Thanks for that! 😃

I do have it set not in skin, but the value was 30. I'll try it with 10 😃

[K8tie 0]

So just an update, I tried the settings mentioned above, it was a tiny bit better but not by much. Combing not In skin and distance with no retract down to 10.

Im not even sure why there would be this stringing given that combing is on. I'm a very confused person right now =/

[burtoogle 513]

3 hours ago, K8tie said:

Im not even sure why there would be this stringing given that combing is on.

 

Does, combing stop stringing? Not sure about that, if anything, it could make it worse.

 

Stringing can occur for various reasons and is influenced by filament temperature, printing speed, retraction distance and speed.

 

[Smithy 1,144]

When I print with PETG I turn combing off completely to avoid stringing!

 

But with PLA I never had any stringing, so try to print cooler.

 

Which filament brand are you using?

[K8tie 0]

Hello,

It's Ziro Brilliant Red PLA

I'm totally confused about the combing, I thought the print head would move within the model shape and therefore these strings would not be created between the teeth of the model.

I'll try again with the default pla settings but this time with the combing turned off - or is that a bad idea?

Thanks for your replies and help so far! 

Incidentally I went as low as 185...

Edited August 25, 2020 by K8tie

[Smithy 1,144]

Give it a try, it is sometimes confusing, but in the end it works 🙂

If you use combing, try different values for max comb distance without retract.

 

Do you have another PLA spool, different brand? Just to see that it is not the filament itself.