Questions tagged [extrusion]

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

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4k 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 ...
4
votes
2answers
9k 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 ...
4
votes
1answer
304 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 ...
4
votes
5answers
2k 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 ...
4
votes
1answer
3k 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
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3answers
4k views

true color printing with CMYK+White (not 3-in-1 diamond head RGB)

There is this great hotend called a diamond hotend, which can be used to print in 3 colors and mix them into hundreds? of colors. This can for example be used with Red, Green and Blue filament to mix ...
4
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2answers
1k views

Failing slow extrusion after upgrade to E3D hotend

I recently upgraded to a E3D full hotend and I started to have problems with slowly printed parts. After I print first object and start next one, then the first layer has serious issue. The first two ...
4
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1answer
362 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, ...
4
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1answer
3k views

Correct amount of force on piece of paper when leveling bed

I am having some problems with bed adhesion and curling of the edges. Also my printer causes alot of stringing when creating the first layer, this can cause the print to let go of the bed and then it ...
4
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1answer
639 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 ...
4
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1answer
249 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 ...
4
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1answer
2k views

E3D V6 underextruding always?

I have an E3D v6 1.75mm bowden. When I print, there is a gap between infill lines, and also when printing rectilinear/hexagonal infill lines seem to be pretty slim. My settings: Slicer: Slic3r ...
4
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0answers
128 views

Inconsistent layer stacking

I'm throwing this out that as a long shot, as I'm not sure if anyone can help me, but maybe there's someone out there who had a similar issue and might have successfully dealt with this before. I'm ...
3
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2answers
2k 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 ...
3
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2answers
268 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 ...
3
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3answers
11k 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 ...
3
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3answers
885 views

How to concave a cylinder with Onshape?

If I have a 3D cylindrical extrusion (in Onshape), how can I scoop, carve, or indent a concave/parabolic curve in one of the ends? The yellow surface is the target. Here is the basic shape I'm ...
3
votes
2answers
1k 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 ...
3
votes
2answers
261 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
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 ...
3
votes
1answer
619 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. ...
3
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2answers
334 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 ...
3
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1answer
42 views

Ender 3 extrusion not working properly

I got a new hotend for my Ender 3. When I start to 3D print a model, everything seems to be going well. After about 20 minutes or so the extrusion stops and the extruder motor can't push the filament ...
3
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3answers
5k 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 '...
3
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1answer
2k 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 ...
3
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1answer
73 views

Effect of particulates on the viscosity of paste that is used to transport it in extrusion printing

I am trying to find research articles that have data on how particulates(metal powder in a paste/hydrogel affect the viscosity of the paste/hydrogel. But I have been coming up blank in my last few ...
3
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1answer
1k views

Monoprice Maker Ultimate Extrudes Too Much Filament At Start

Today I received my Monoprice Maker Ultimate 3D Printer. It is a rebranded Wanhao Duplicator 6 for reference. I am using the default settings for a Wanhao Duplicator 6 in Simplify3D. Here is the ...
3
votes
1answer
332 views

Flow Settings in Cura 2.4 for Ultimaker 2+ not available (suspected overextrusion filling small holes)

Cura 2.4 reports that the (printer-dependant) G-Code mode prevents the "Flow" (extrusion rate adjustment percentage) setting from being available. Why? I am using an Ultimaker 2+. Is a firmware update ...
3
votes
1answer
4k 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 ...
3
votes
1answer
1k 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 ...
3
votes
1answer
870 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 ...
2
votes
2answers
412 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 ...
2
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4answers
3k 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 ...
2
votes
2answers
96 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 ...
2
votes
1answer
453 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, ...
2
votes
1answer
472 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 ...
2
votes
2answers
110 views

Is there any (relatively simple) way to determine whether a stepper is being directed to move by the voltage signal across its winding?

This may be a long shot, but I was wondering if the signals seen across a stepper motor's windings could indicate whether the stepper was being told to move over some short time period. This is in ...
2
votes
2answers
405 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 ...
2
votes
2answers
151 views

Why does FlashPrint have different (non-100%) default extrusion ratios for different filaments?

In FlashPrint there is an Extrusion Ratio setting. It's set to 97 % for the stock PLA profile and 107 % for the stock PETG profile. I would've thought these would be 100 % by default (and the same for ...
2
votes
1answer
228 views

Extruder stops printing before finishing first layer (Ender 3 v2 w/BIQU H2)

Let me preface this with me being quite a newbie to 3D printing, however, I am an engineer and coder, so tinkering with stuff like this is quite the norm for me. Don't be afraid to be too technical, ...
2
votes
2answers
120 views

Prusa MK3S not extruding during printing but extruder working

I didn't have any printer-related problem for the past 6 months, but now all of a sudden my Prusa MK3S stopped extruding during printing. This is very strange as I can easily load\unload filament and ...
2
votes
2answers
3k 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 ...
2
votes
1answer
984 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
396 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 ...
2
votes
2answers
102 views

Inconsistent layer widths and uneven outer walls

I have problems with layer widths and uneven outer walls on my 3D prints. Sometimes layers are squeezed and sometimes pushed outside. I noticed that these problems happen when there are retractions on ...
2
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0answers
40 views

Bioprinter does not extrude Anet A8 Marlin

I have a modified Anet A8 that is supposed to print hydrogels (paper : Ultra-Low-Cost 3D Bioprinting, Kahl M et al. 2019). For this to work, we do not need any temperature-related settings, however, I ...
2
votes
0answers
65 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
2
votes
0answers
74 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 ...
1
vote
5answers
188 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 ...
1
vote
2answers
618 views

Which hotend does not clog and is good to use with a Bowden 1.75 mm setup?

I'm building my own 3D printer (custom design, made by me and cut using a water cutting machine) but I have always had problems with the hotend clogging. I have had four hotends: a J-Head; a full ...