3D Printing Stack Exchange
3D Printing Stack Exchange

Questions tagged [retraction]

Use this tag for questions about retraction of filament.

Retraction of filament is the opposite of filament extrusion. Slicer software allows for specification of a retraction length, which in effect is a negative length. Retraction of filament can be required to minimize the oozing of the hotend during travel moves. This is explained by the relaxation of the pressure build-up in the hotend.

37 questions
9
votes
1 answer

Stringing during travel on first layer with Ultimaker Cura

I'm using Ultimaker Cura 3.6.0 and I am getting some annoying "stringing" on the first layer. This isn't new to 3.6.0 as I have seen it on pretty much every version I have used. What appears to be happening is that as it is laying down the first…
Steve In CO
  • 907
  • 3
  • 9
  • 18
9
votes
1 answer

Extruder doesn't retract on inner wall lines thereby causing stringing

I am trying to stop the stringing that occurs on one of my prints, I have set it so that it retracts the filament which does stop it during the extrusion of the outer wall layer, however when it comes to print the inner lines of the section it does…
Liam
  • 679
  • 4
  • 12
  • 20
8
votes
1 answer

What is retract speed & length?

On a 3D XYZ printer extruder, I found two terms I have no idea about: retract speed retract length What are these and why/how should they be set?
K D
  • 81
  • 1
  • 1
  • 2
7
votes
1 answer

Handling retraction when using a mixing extruder (2 in 1 out)

I have a Zonestar Z5FM2 running Marlin 1.1.8 with a mixing extruder. That is, 2 extruder stepper motors feeding a 2-in 1-out hotend (similar to the E3D cyclops). I'm slicing with Simplify3D and I have set up: T0 set to the first extruder; T1 set…
LMF5000
  • 71
  • 3
7
votes
1 answer

Question about retraction distance and stringing/print quality with PETG

I've tried printing the Basic Stringing Test on my CR-10S using PETG (250 °C nozzle, 80 °C bed) with different retraction distances leaving all the rest unchanged. In the image below you can see 0 mm, 5 mm and 10 mm retractions (in order…
Fredo Corleone
  • 339
  • 2
  • 6
  • 14
7
votes
1 answer

Retraction Causing Skipping

I am trying to get rid of stringing on my prints, to do that I have tried turning on a retraction in Ultimaker Cura, and reducing flow. When I turn on retraction it causes the extruder to skip on the filament. the extruder pulls the material out as…
Liam
  • 679
  • 4
  • 12
  • 20
6
votes
2 answers

Monoprice Select Mini V2 retraction/stringing problem

I have a Monoprice Select Mini V2 and I’ve recently been having issues with little strings that are thick and sturdy sticking off of models: I used Ultimaker Cura v3.4.1 to slice this model: Basic Retraction test using Hatchbox Black PLA…
Jordy337
  • 181
  • 1
  • 6
6
votes
2 answers

How does slipping Bowden tube affect retraction or does it at all?

I have an Ender 3 Pro with upgraded Bowden capricorn tube. The tube will move approximately 1-2 mm during normal operation, though it will not come out of the coupler at all. I have read that the movement if unchanging (constant movement of 1-2 mm)…
Johnny
  • 63
  • 1
  • 4
5
votes
2 answers

Under extrusion... sometimes

You can see small gaps in the print which looks like under extrusion (see image below). What is the reason for that? I've tried smaller retracting distances. Temperature looks stable. Print settings: PETG from Extruder 245 °C Printing…
rusky
  • 53
  • 1
  • 3
4
votes
1 answer

Ultimaker Cura not always telling extruder to retract when traveling

I'm having a problem with Ultimaker Cura (v3.4.0) where it doesn't always tell the extruder to retract when performing a travel, which causes the hotend to leave a "trail" as it's moving and not start printing again right away when the travel is…
You'reAGitForNotUsingGit
  • 203
  • 1
  • 6
4
votes
2 answers

How to remove unwanted filament trails from sharp corners

I'm a 2-week newbie at 3D printing, working on a new Qidi Xpro machine (that is solid and one that I like). So, I do not want to believe that this issue is caused by my printer itself. I'm hoping that my settings have something to do with it. The…
Kevin
  • 573
  • 1
  • 4
  • 12
4
votes
2 answers

Prints coming out very stringy

So these past few days I have been 3D printing again with my Ender 3 with PETG and 0.4 mm nozzle and while I have been using the same setting as usual I am seeing an unusual amount of stringing between the prints. Does anyone know why? If you're…
Brilliant Purnawan
  • 63
  • 1
  • 4
4
votes
1 answer

Ender 5: Bowden tube shifts in/out of extruder during retractions

I have an Ender 5 with an aluminum extruder that was printing beautifully for a few days after building it. I received a Capricorn bowden tube and new couplings as a gift, and replaced those, and now I have stringing issues I can't solve. I've been…
Gregir
  • 163
  • 1
  • 6
3
votes
1 answer

Use Gcode Extrusion Speed in Calculations

I have a Rostock Max V2, and I've added a second extruder going into a y-splitter into a single nozzle on my printer. I have both extruders working correctly, but I'm having trouble tuning the retraction settings to prevent stringing when I switch…
TempleGuard527
  • 133
  • 5
3
votes
2 answers

Stuttering extrusion after layer change

I am currently encountering a problem where under certain circumstances, the extruder stutters when it starts a new layer. I am printing on an Anycubic i3 Mega and am slicing with Cura 3.6.0. The problem seems to occur in the main part of prints, as…
kulfürst
  • 31
  • 3
1
2 3