Print quality - Stringy between small parts

K8200 3D Printer K8200 - Issues while printing
1

I was trying to print an object called the tower of pi and the quality was pretty good although inbetween the numbers there is stringy plastic. It looks like the hotend is still extruding a little bit when moving.

dropbox.com/s/x3n6v1l65rer3 … 9.jpg?dl=0

What is the cause of this and how could i prevent it?

Thanks in advance

2

[quote=“LMB20”]I was trying to print an object called the tower of pi and the quality was pretty good although inbetween the numbers there is stringy plastic. It looks like the hotend is still extruding a little bit when moving.

dropbox.com/s/x3n6v1l65rer3 … 9.jpg?dl=0

What is the cause of this and how could i prevent it?

Thanks in advance[/quote]

You can try setting a higher retraction lenghth, to prevent that stringing.
Also, printing lower temp can help.
I changed to an E3D V6 Hotend, which eliminated the stringing almost totally.

cheers,

Christian

3

Yeah I recently changed to the e3d v6 and it is a big improvement.

I will try using a lower temperature but what retraction length would you recommend?

4

[quote=“LMB20”]Yeah I recently changed to the e3d v6 and it is a big improvement.

I will try using a lower temperature but what retraction length would you recommend?[/quote]

If you already use the E3D try retraction 1 - 1.5mm and retraction speed of 1000mm/s
The E3d doesn’t need that much retraction length. All greater than 3mm will lead to a jammed Hotend!

cheers,

Christian