3DPrintEvangelist
Posts: 5
Joined: Wed Jan 06, 2016 7:38 am

Surface Quality - getting rid of travel lines

Hi,
on surfaces my prints always have a line across from a travel movement. I use Outside-In printing direction and the travel is after finishing the outside.
When I have a hole in the inner area, so that another outline has to be printed, I get a second travel line in my surface.
That travel ignores z-lift and retraction and possible wipe and coast, so it leaves a line of plastic. The same happens when changing from skirt to the actual to be printed object, where the travel movement goes opposite across the whole printing surface leaving a plastic line.
Somehow the travel seems unavoidable regardless my "avoid crossing outline for travel movements" setting.
Trying the different "Ooze control behaviour" settings did not change the result.
Searching the forum I have not found a solution yet, so I hope someone has an solution.
Thanks for any help
rrdavis
Posts: 421
Joined: Sat Dec 09, 2017 4:52 am

Re: Surface Quality - getting rid of travel lines

Hard to help without any files or settings. Attach your factory file (File > Save Factory File) and perhaps a screenshot showing the exact movements in the preview that you are seeing that you are trying to get rid of.
3DPrintEvangelist
Posts: 5
Joined: Wed Jan 06, 2016 7:38 am

Re: Surface Quality - getting rid of travel lines

Of course.
So here is an example and the yellow lines show the travel lines. So there is one from skirt to object and one from outside to inside and one from inside to outside.
PLA_1.fff
(9.1 KiB) Downloaded 308 times
And attached is my FFF.
3DPrintEvangelist
Posts: 5
Joined: Wed Jan 06, 2016 7:38 am

Re: Surface Quality - getting rid of travel lines

Although the picture is attached and in-place in the previous post, it seems not visible.
So here I attach it again.
Attachments
travel_lines.JPG
rrdavis
Posts: 421
Joined: Sat Dec 09, 2017 4:52 am

Re: Surface Quality - getting rid of travel lines

Try enabling Z-lift in your retraction settings, then disable the "only retract when crossing open spaces" option on the Advanced tab. That way it will retract and lift before making a move.

That will prevent some of the travel lines on that surface
3DPrintEvangelist
Posts: 5
Joined: Wed Jan 06, 2016 7:38 am

Re: Surface Quality - getting rid of travel lines

Although I tested a lot and tried different settings, it seems I somehow managed to not disable the option "only retract when crossing open spaces",
although I could have sworn to having it disabled a few times. :oops:
Be it as it may, disabling "only retract when crossing open spaces" solved my issue with travel lines.
Thank you for the reply.

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