Nozzle dragging over print

[Stealthy_TT]

Hey all,

So since I’ve been using Duet I cannot seem to get rid of the nozzle dragging across the layer it’s printing, it causes some stringing and I can hear the drag when the hotend is traveling.

Any ideas on what I should be changing?

Z steps are basically perfect, +100mm is within .07-.10mm. My first layer also lays down great

Cura has the correct filament diameter also. My extruder is also calibrated to within.07-.10mm

Heres a picture of my top layer, this is happening starting from like layer 4 and gets to this point. Don’t mind the blob, messed up on my end code in cura, nozzle dropped into the print haha


[burtoogle]

Make sure that the Cura combing setting is set to "No Skin". If you don't do that, it will allow travel moves to cross skin areas without retraction or z-hop. Can you please post your gcode so I can see if there's anything odd about it?

[Stealthy_TT]

Hey Burtoogle,

Thanks for chiming in, I wasn't using combing but just turned it on.

Are you wanting the actual file, or the whole gcode?

Also printing another one now with a extrusion multiplier of 90, looks better. also scaled the overall size from 20x20x5 to 30x30x5

[Stealthy_TT]

Heres what this one looks like at 90% extrusion multiplier

[burtoogle]

Sorry, what I meant was, don't use combing set to "All", either turn combing off or set it to "No Skin".

[Stealthy_TT]

@burtoogle

I set it to skin when i had it on. Now i turned it back off, and now for some reason every line it puts down its doing a retract. like every line other than outer walls

[Stealthy_TT]

Just loaded a older Gcode file i had, no issues with that one. i must have did something wrong here.

[peter247]

@burtoogle said in Nozzle dragging over print:

If you don't do that, it will allow travel moves to cross skin areas without retraction or z-hop

I think that is a part of the puzzle I've been looking for ? , Cura don`t make it simple for you does it ?, I've been looking for some sort of lift while traveling command.

[Stealthy_TT]

So just an update. for some reason cura was giving me really crap prints. I downloaded Slic3r and configured it, and man my first print from it was pretty flawless. Seems like Slic3r slices better than Cura. The one thing I hated about cura was that it would travel to the next layer then lift z to start printing, Slic3r does the opposite and lifts head then moves.

Yeah I could use Z hop on Cura, but that always gave me a poorer print.

Will post a picture of the difference

Far right is a Slic3r print, the two on left are from Cura, all pictures printed with .2 layer height.