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Questions tagged [extrusion]

Questions about extrusion mechanisms in varying types of 3D printers.

5
votes
1answer
35 views

Slicer software capable of working with large filaments

I'm starting work on a very large 3d printer that uses very large filament. The idea is to house the entire thing in a shipping container and print things as large as cars. Filament will be some ...
4
votes
1answer
61 views

Extruder retracts filament while moving from default start line to actual object location

I am new to 3D printing and recently got a second hand RF1000 and am busy calibrating it. For this I want to print a basic calibration cube. I noticed the print doesn't always start with enough ...
10
votes
5answers
1k views

Isn't using the Extrusion Multiplier like cheating?

One thing I never understood is the so-called Extrusion Multiplier (EM) or Flow setting in slicers like Simplify3D (S3D) or CURA. The description for this setting reads... S3D: Multiplier for all ...
2
votes
0answers
40 views

Extruder calibrated, but prints still oversized by .1 mm or so

I've got a pretty straightforward problem. In general my printer is very accurate for the XYZ movements. What I'm running into is no matter what size my print is, the XY dimensions will be thicker by ...
2
votes
1answer
58 views

Monoprice Maker Select v2 stops extruding after about 200-300 mm

I've done a fair bit of looking around for an answer and have yet been unable to find one. So here is my problem, after about 200-300 mm of extrusion, the PLA stops coming through the nozzle. ...
4
votes
5answers
148 views

Can a single line of Gcode have variable extrusion rate?

Fairly long winded, but hopefully makes sense; I understand that G-code is executed line-by-line, and in the main printing phase each instruction is effectively go to location XY (assuming staying ...
2
votes
0answers
35 views

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 ...
1
vote
1answer
35 views

Periodical under extrusion with Slic3r

I got myself an Ender 3 printer, put it together and tried the test g-code, worked fine. But i sometimes have problems with under extrusion, as shown in the picture below. As you can see, the part to ...
4
votes
2answers
233 views

First 3 mm prints poorly, then fine after that

I have an Ender 3 that I have been pretty happy with so far, however it recently started an odd behavior and I can't figure out what's causing it. What happens is that the first ~3 mm of the ...
2
votes
0answers
77 views

Small structures are deformed after switching to Duet Wifi

I just switched to the Duet Wifi board (used MKS Gen L 1.0 before) and now small structures look terrible. From my observations the hot end moves correctly, but almost no filament gets extruded. On ...
1
vote
1answer
92 views

Material extruded to prime the nozzle doesn't stick to bed at first

When the material is extruded to prime the nozzle before the print starts it doesn't always stick to the bed for the first 20 or 30 mm of the line, causing the material extruded just after to peel off ...
2
votes
2answers
89 views

Weird surface thing

I have a 3D printer at home, the Colido Compact, and for some reason when I 3D print big flat surfaces a really weird thing happens. I'm using some PLA from Colido too I think It almost seems as if ...
1
vote
2answers
283 views

Filament Leaking During Automatic Bed Leveling

Before the print has actually started I have set up Auto Bed Leveling using a BLTouch sensor, during the period that this runs I find that material leaks out of the nozzle and curls back onto itself ...
5
votes
1answer
297 views

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 ...
2
votes
1answer
189 views

When I attempt to calibrate extruder steps the increased values don't correspond to physical increases

I am attempting to follow these instructions to calibrate the extruder, however when I increase the value for DEFAULT_AXIS_STEPS_PER_UNIT the change in physical ...
1
vote
1answer
64 views

Filament gets coiled inside the extruder

A while ago bought a Bowden extruder to replace the old built-in one (It was malfunctioning or something that I cannot remember well). This one in particular has been acquired: The thing is, that ...
2
votes
1answer
119 views

Print Lines Aren't Joining Together

I have encountered a problem where the print lines are not joining together, when I remove it from the plate it turns into a stringy mess. I am not sure what the problem is because I print out models ...
2
votes
2answers
91 views

Different lengths of filament is extruded with different temperatures

TL;DR: I'm looking to change the steps per mm but I'm not sure what to set it to. Do I decide on a temperature and change the rate based on the percentage for that temp? Or is there a more general ...
2
votes
2answers
578 views

Ender 3 extrudes plastic whilst at standstill, and while moving to start of print

I have a small problem where plastic comes out of the nozzle while the printer is at a standstill (normally towards the end of heating the nozzle for a print), and whilst it moves from the line for ...
2
votes
2answers
170 views

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 ...
1
vote
2answers
127 views

Is my printer over extruding?

I'm getting some slight pooling on the end of straight lines on my Ender-3 Is this due to over extruding? Or some other issue?
6
votes
3answers
254 views

Adding additional extrusion to a raft (raft with a skirt?)

I started using rafts more often, to get better results with complex or fragile parts, but my Ender 3 consistently under-extrudes the initial outside line of the raft (for the first inch or two, where ...
3
votes
1answer
114 views

Hemispherical Bowl : how is it possible?

I was reading up about how to extrusion print an overhang greater than 45 degrees, when something weird stuck me. I see lots and lots of 3D extrusion printed bowls that have perfectly printed ...
4
votes
1answer
189 views

Under extrusion, looking for specific information

Have a Monoprice maker select with a Micro Swiss hotend, and am using Cura IIIP. Edit: plus Janbex PLA 1.75mm filament. Trying to print a Pi camera mount, but am getting (I believe) under extrusion, ...
3
votes
1answer
456 views

Massive over extrusion after changing firmware

I have an Anet A8 printer (no modifications) and first printed a calibration cube. It came out okayish, within expectations. Afterwards I flashed the firmware to Marlin 1.1.9 and since then have very ...
4
votes
2answers
570 views

PETG filament doesn't stick reliably to fake Buildtak surface

I just got my first spool of PETG and tried to calibrate an Ultimaker Cura profile for it on my Ender 3 today with limited success. I've had severe issues with the filament not sticking to the build ...
3
votes
1answer
706 views

Slicer line width vs. extrusion multiplier for layer adhesion?

My question would like to address what would be better for adhesion and general quality and possibly strength: either increase the slicer line width option or increase the slicer extrusion multiplier ...
3
votes
1answer
73 views

Unknown issue affecting print quality

I have been having issues with a vase print using a FlashForge Creator Pro. I am using the default slicer for the printer(FlashPrint) because the Creator Pro only accepts x3g rather than Gcode. The ...
4
votes
1answer
86 views

Given a viscosity is it possible to calculate required pressure for desired output?

The following rheology question relates to predicting the flow of polymer-based non-newtonian fluids extrusion processes. In this case, applied to 3D printing. I'm trying to calculate the pressure ...
7
votes
1answer
468 views

Extruder feedrate when loading and unloading filament

I have an MKS Base 1.4 board with a TFT28 touch screen and a Titan Aero setup. When I use the load filament command from the touch screen the motor turns at a crazy speed to load filament, whereas if ...
5
votes
6answers
1k views

Constant under extrusion and filament grinding

I sadly have a big problem since a couple of weeks and I cant fix it myself. For over 20 prints, I had the same problems: At the start, everything goes well but at some point of time, my Creality CR-...
5
votes
1answer
263 views

How can you calibrate extrusion multiplier value in Slic3r WITHOUT changing printer settings in memory?

Most tutorials ask you to change the printer settings using the ...
6
votes
1answer
213 views

Problems with Z step

Recently I bought a Prusa i3 pro W (from Geeetech) and I've been struggling with something that is ruining all my printings. I attach a photo with what was supposed to be little "boxes": As you ...
4
votes
1answer
329 views

Underextrusion after travel moves with PETG/Colorfab XT

I came across several issues which seem to have been lowered. Firstly, I changed from a 0.4 to a 0.5 mm nozzle. Because of the backpressure I was not able to print my PETG (Colorfabb XT filament) ...
3
votes
2answers
150 views

Anet A2 3D printer suddenly will not home X and Y

I have been using my Anet A2 for about a year. A few problems but none that I haven't been able to resolve. Today it suddenly stopped auto homing. Using the position commands I can advance the X and ...
3
votes
1answer
130 views

How is the E argument calculated for a given G1 command?

I'm working on building a tool to generate G-code (a simpler slicer), and I'm trying to calculate how much filament should be extruded per movement. Is there a standard calculation for this? ...
6
votes
1answer
542 views

Would a really short melt-zone be beneficial

IANAE (I am not an engineer), but I've been wondering: wouldn't it make more sense to limit the length of the melt-zone and hot-end as much as possible? I've been having a lot of problems with nylon ...
5
votes
1answer
97 views

Strange grooves with ABS

I am experiencing strange grooves in my ABS prints; with PLA everything is fine. Some layers seem to randomly overextruded and others underextruded. My parameters: Temp: 240°C Retraction Distance: 5&...
7
votes
1answer
222 views

Extruding a (wall?) in Fusion 360?

I have a model that has walls with a volume of 0.00mm that I want to extrude so I can 3D Print it. I was unable to convert it into a normal body in order to extrude it. In addition I was unable to ...
5
votes
1answer
287 views

Finding a shredder for my failed prints

I would love to re-use my failed prints by re-extruding the plastic to be used int he 3d printer once again. One thing that stand in my way is finding a effective way to shred the plastic into smaller ...
1
vote
1answer
321 views

Stuck getting ANet A8 Printer to build layers [duplicate]

I have excitedly decided to get my feet wet in the 3D printing world, and being that budget is fairly small got myself an ANet A8 3D printer. I have it all assembled and am able to 'print' however I ...
5
votes
1answer
990 views

Temperature offset on Wanhao Duplicator i3 Mini

I'm trying to print with PLA on a new Wanhao Duplicator i3 Mini. In regular temperature settings (200-210°C) the printer underextrudes and the extruder motor skips, which led me to suspect low nozzle ...
5
votes
2answers
144 views

What setting is this defect caused by?

I am attempting to print the Benchy boat but every attempt so far has been unsuccessful. The print has a sort of slope/blob on the nose of the boat, which emerges after the first 30 layers. Here you ...
8
votes
2answers
2k views

Tuning line width and flow compensation in Cura

I'm currently in the process of fine-tuning my cheap CTC i3 clone. I'm using Cura 3.1 for slicing. After calibrating the extruder steps, I wanted to optimize the line width and flow compensation ...
5
votes
1answer
397 views

Regular over-extrusion..?

Can anyone explain to me why I'm getting regular over-extrusion patterns on this extrusion calibration cube? Just upgraded the extruder from stock to Flexion HT on my Balco Touch (Wanhao i3 plus) and ...
5
votes
2answers
454 views

Filament starts extruding as soon as hotend reaches melting point

I have a homemade 3D printer running on ramps 1.4 When i start a new print and the hotend reaches melting point of PLA, the PLA start coming out of the hotend. This goes on for as long as the ...
2
votes
1answer
241 views

Cooling time query ABS

I printed Thingiverse "Benchy" at the default Anet settings for ABS, hot end and bed, as a first test. The result was fair but needs a bit of tweeking. The model was removed from the "hot bed" and set ...
2
votes
1answer
219 views

Ultimaker Original+: print has lumps and small gaps are being filled

Brand new to 3D printing and have an Ultimaker Original + using PLA (2.85mm). The nozzle/extruder temperature is 200C and the bed/plate is 60C. I installed the Cura software on my Windows 10 box. I ...
11
votes
3answers
1k views

Under extrusion towards the end of the print

I have really strange problem. Thing is that my print (first layer) started ok, not good nor perfect but ok and everything was going well but then all of a sudden, near the end of a print, quality ...
4
votes
1answer
139 views

My printer is printing a messy ball. CTC prusa from Ebay

I bought this cheap prusa i3 variation from eBay. I setup everything and now I'm trying to print some gcode file from the SD card. Using PLA. Here is a video of the mess! How can so fix this ...