Questions tagged [extrusion]

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

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22 views

My Monoprice Select Mini v2 isn't pushing out filament and it isn't the nozzle

The printer isn't pushing out filament. I'm using the filament that came with the printer, and I know it's not the nozzle. I've tried to get the metal piece surrounding that goes from the Bowden ...
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0answers
12 views

What volumetric extrusion rates can the Ender 3's stock hotend achieve?

With a fully stock Ender 3, the limiting factor is almost surely the extruder, not the hotend, so I'm asking from a standpoint of having an upgraded extruder (mine is direct drive) but stock hotend. I'...
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1answer
69 views

Bed is leveled and not warped but still uneven printing?

I have the Creality CR-10S. I replaced the glass it originally came with as it was warped and I wasn't getting any material out on 2 of the sides. I switched to a PEI sheet and got the same results ...
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0answers
32 views

Top and bottom of part not coming out smooth

I have an Ender 3 printer and can not figure out why the top and bottom layer of this print comes out the way it does every print. I have tried increasing the initial layer height to 0.3 mm and ...
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2answers
60 views

What is cause of blob when layer area reduces by 50%?

This is printing PETG extruding at 250 °C, 1st layer bed at 80 °C then 60 °C on other layers. Nozzle is 0.4 mm; printer is German Reprap X400. The all metal extruder is clean with no oozing. The ...
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1answer
224 views

What are ways to avoid heat creep?

Printer configuration and many settings affect heat creep. Heat creep stopping extrusion doesn't necessarily involve melting the filament too high above the nozzle. All it takes is making the ...
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1answer
94 views

How to change the extrusion value (E parameter) in G-code?

Before I ask you my question I want to summarize my problem. I am trying to build my personal 3D Printer and I can send the controller of my Extruder (Motor) only integer values. Slicer (Cura) ...
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1answer
47 views

Are there FDM epoxy/resin printers?

After seeing a question about FDM printing of temperature-resistant parts, high-temperature 2-part epoxy came to mind. Are there any (experimental or production) FDM extruders for laying viscous, fast-...
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1answer
38 views

Printer is over extruding for the first few layers

I'm facing a strange issue where my printer is over-extruding only for the first 6-8 layers (layer height of 0.2 mm). All the layers above that have no such issue, which, as far as I understand, rules ...
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2answers
66 views

e-steps are wrong only during printing moves

I have two otherwise-identical machines (called "Lefty" and "Righty"), so I have a baseline to compare. I am running Marlin 2.0.7.2 on both machines. They are Creality CR-10 ...
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1answer
138 views

Incorrect inner dimensions of 3D prints with Ender 3

I have problem with my Ender 3. Whenever I print, I have proper outer dimensions (accuracy usually better than 0.1 mm, sometimes a bit worse), but every hole, pit or any inside dimension is inaccurate ...
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1answer
54 views

Will 3D printing work upside down or in zero gravity?

I assume SLA printing only works on Earth and upright. But would fused-filament printer (e.g. Prusa Mk3) work in zero gravity? What about upside down or sideways? If not, could it be modified to work ...
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0answers
88 views

Ender 3 Pro - Randomly skip lines

I am a newbie to the 3D printing world. Every night spending hours researching and troubleshooting. Recently though I am having a weird problem for which I can not figure out a solution. While ...
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2answers
33 views

Help fixing Prusa i3 MK3 print jams

While printing a paint rack from thingiverse I keep getting jams. Other prints (shorter) work fine. Can anyone give me a clue? Here's a video of the printer I thought it was heat creep so I increased ...
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1answer
87 views

How is the extrusion rate matched to the movement speed?

A typical line of (depositing) G-code seems to set a maximum speed (F), a new position to move to (X, ...
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1answer
49 views

What causes this characteristic pattern and what is it called?

I am using a Qidi Tech 1 (Flashforge Creator Pro). There is no auto bed leveling and I have done my best to tweak it by hand using the screws underneath the heated bed plate. What is causing this ...
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1answer
60 views

Resume print but no extrusion

Had a print stop about 20 % through and read through some old questions (3+ years) so I'm posting again. Apologies if it's in here some where... Found the layer to restart, deleted everything from ...
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2answers
2k views

Gaps between perimeter walls; potential under extrusion?

The cube is a 2 cm x 2 cm with infill at 30 % and layer height 0.2 mm, more details can be seen below. I'm printing with PETG using an Ender 3 printer. There seems to be a gap between the perimeter ...
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1answer
143 views

Filament consistently jamming / clogging in Bowden tube on MP mini 3

I've had this MP Select Mini III for years and years. Lately it's consistently jamming/clogging somewhere between the hot end and the PTFE tubing - but not right away, often when it starts getting to ...
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1answer
292 views

Causes of over-extrusion?

What could be the causes of a consistent over-extrusion? I know about these: steps/mm of extruder motor set too high larger filament diameter slicer setting: filament diameter - setting it lower ...
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3answers
661 views

Optimum ratio of line width to layer thickness for overhang performance?

When I have overhangs in my model, Cura colors them red. However, I noticed if I make layer thickness thinner, the red area is reduced or disappears. This could mean that thinner layer thickness is ...
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1answer
992 views

Creality CR-10 problems with extrusion while printing

I have an extrusion problem with my creality CR 10 3D printer while printing. I am using a standard 0.4 mm nozzle with a 1.75 mm diameter PLA and I use Cura as my slicer. This printer ...
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1answer
394 views

Increase volumetric flow rate using a longer nozzle

I'm looking to increase the printing speed, through increasing the volumetric flow rate, which is currently at 5 mm³/s. Larger amounts cause the feeding mechanism to skip steps. I'm running at ...
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1answer
152 views

Partially missed / dragged layers

I'm trying to diagnose a print issue that looks like a missed layer (sorry, first-time printer here) and Specs: Printer: QIDI Tech X-Plus (direct drive). Material: PLA. Extruder temp: 200 °...
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1answer
80 views

PLA support material suddenly a problem on Ender 5

I have an Ender 5 that I meticulously calibrated with good success and was regularly getting great print quality with PLA. I stopped using it for a couple of months and when I resumed (without having ...
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1answer
108 views

Monoprice select mini underextrusion?

Can someone please review the picture and tell me things to try to fix, the threads are full of little gaps. The layers that are solid, below the threads have a tiny bit of space between them. Is it ...
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1answer
274 views

CR10 V2 under extruding and heating up too quickly

The heater cartridge on my CR10 V2 broke so I ordered a new one(12V). After replacing it the new one heats of very quickly past the target temperature and the slowly decreases to the target. Once it ...
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1answer
3k views

Ender 5 Pro print quality issue

I got my 3D printer from Creality 1 day ago. My dog off the SD card came perfectly, Benchy was also printed almost flawlessly. I used standard Benchy settings on all my prints. Now I tried making a ...
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1answer
110 views

Gobs of filament during initial movement of extruder

I have successfully printed a few models on my Maker Select V2 (Wanhao Duplicator i3) including 3D Benchy, but I'm seeing a consistent problem with a model that I've sliced with Cura. The extruder ...
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4answers
12k views

Ender 3 Extruder First Layer Perfect But Then Starts Clicking Afterwards

All of a sudden I seem to be having a lot of issues with under extruding on my Ender 3. The bottom layer (of height 0.1 mm) prints perfectly fine. This is done at 15 mm/s speed. However, The ...
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3answers
2k views

New PETG spool from eSUN is making popping sound while extruding

I just bought new eSUN PETg filament. When I started to extrude it, I heard popping sound same as moisture boiling out of it. I don't expect new eSUN vaccum sealed filament having moisture content. Is ...
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2answers
1k views

Wavy lines on 1st layer only

I'm getting wavy lines on the first layer only in both the x and y direction identically. The first layer is 0.4 mm with a 0.4 mm tip. The other layers are 0.2 mm. I've tried changing the Z offset ...
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0answers
180 views

How to solve this extrusion problem?

I was using this model at 100% infill to test extrusion: The printer is an old Printrbot which I converted to Klipper, so I'm doing some tests to ensure correct parameters. ABS filament 3 mm (not 2....
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2answers
3k views

Prusa i3 MK3S keeps clogging during print. Ugly streaks sometimes, and complete clog when printing with lower layer lines

The extruder on my Prusa i3 MK3S keeps clogging while printing. Loading is fine, and each time it clogs, unloading and loading the filament seems to work. The filament extruded just after resolving a ...
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1answer
2k views

Ender 3 Pro extruder drive rocking back and forth

I've been running this Ender 3 Pro for quite some time with no problem up until recently. The issue was the printer refused to extrude filament (the extruder stepper seems to be rocking back and forth)...
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2answers
134 views

3D printing overhangs that are over .200 in

I am new to 3D printing but have been in CNC Machining for a few years. I have a part I am trying to print that is a cylinder 1.000 in. in diameter and has a .200 in overhang starting at 1.300 in. In ...
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1answer
194 views

Why and how am I supposed to change the extrusion multiplier? [duplicate]

The slicing software knows exactly (given accurate E-step, filament diameter, nozzle diameter values) how much cold plastic is pushed in the extruder and how much mass is extruded. Why should the ...
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0answers
527 views

How to calculate the extruder gear ratio given a desired max printing speed filament diameter and nozzle diameter?

I have a Printrbot LC with the following extruder gears: Stepper on the right, filament toothed gear inside, same size of the small stepper gear. I don't have much more information besides the model ...
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2answers
8k views

Ender 3 Pro Filament extrusion problems

I run quite a few Ender 3 Pro's using the same slicer settings (Simplify3D), and just recently I have noticed a very odd extrusion problem. I find that at about the same height on several printers ...
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2answers
236 views

Why is my 3D printer not extruding properly?

I have a Duplicator i3 mini, which has yet to make it a month without breaking. This time it is extra broken because the filament is not extruding properly. the most successful print I've had yet had ...
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1answer
1k views

Retraction Jamming Problem!

Recently I had this problem where I needed to change filament from PLA to PET-G or similar. And... filament jam. After playing around with different settings and speeds and still getting the same ...
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1answer
375 views

Printing with PETG, printer says it's out of filament when it clearly is not

Background: I have an Alfawise U20 (CR10 clone) and am still somewhat of a noob, though I've been learning as much as quickly as time will allow. The Alfawise U20 has "out-of-filament" detection, ...
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2answers
344 views

Power consumption of filament extrusion

I'd like to calculate the power lost through the filament being extruded (or in other words, at how many Watts I'd have to run an ideal heater that loses heat ONLY through filament so that it stays at ...
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1answer
976 views

How is E value calculated in Slic3r?

I want to know the math behind how Slic3r calculates E values. $E_{value}$ represents amount of filament in mm (unless volumetric extrusion is selected) that has to be fed into the hotend to obtain a ...
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3answers
4k views

Can't seem to fix over extrusion

I'm struggling to get my printer up and running for a few days now. The problem is as follows. I got a test model of a cube (40x40 mm) and everytime I try to print it, the nozzle creates these '...
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1answer
383 views

No extrusion, but manual extrusion works

I just bought and build my first 3d printer (HE3D K280 with Marlin) and I'm encountering some problems with Cura 4 and Repetier. When I load and slice a part, the printer does not extrude anything ...
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1answer
394 views

Strange banding on first layer/skin

I've been printing for a while with a Creality CR-10S with Colorfabb black PETG economy and all was good. Until today, where on a large, flat print (30x10cm - a small drawer) I can't manage to get a ...
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3answers
502 views

Print came out like a wafer

I'm not sure how else to describe it. There's probably a name for this but I just don't know it. But the bottom few layers came out great, but the rest came out kind of like a triscuit. Below are pics ...
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0answers
62 views

How is the Ex.xxx calculated? [duplicate]

How is the Ex.xxx calculated, formula G1 X129.000 Y126.322 E7.90758 G1 X128.476 Y125.548 E7.92045
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1answer
633 views

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 ...