Questions tagged [extrusion]

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

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1answer
657 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 ...
7
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3answers
767 views

Anet A8 bad/inconsistent extrusion after changing nozzle

I just changed my nozzle on my Anet A8 after it was fully used up. When I started printing with my new 0.4 mm nozzle (same as before) my extrusion was VERY bad and inconsistent, even so bad I ...
5
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1answer
2k 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
244 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 ...
7
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2answers
4k 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
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1answer
1k 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
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2answers
1k 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
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1answer
962 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
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1answer
391 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
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4answers
6k 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 ...
5
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1answer
222 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 ...
6
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4answers
6k views

Why is my 3D printer over extruding when I have set the flow rate very low

Hello I am using Cura to slice my prints, and despite turning the flow rate to the minimum value of 5%, my prints are still hugely over extruding. I have calibrated the extruder stepper perfectly, ...
7
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2answers
2k views

Hot end jamming very quickly

I have built a 3D printer out of parts from my tip, a ramps board, arduino mega, and a hot end. However, after doing a test extrusion some plastic was spewed out and then the print jammed un-...
3
votes
3answers
861 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 ...
6
votes
1answer
850 views

Filament not extruding

I've recently bought an Anet A8, and haven't been getting good prints with it. I noticed there was filament leaking from the top of the hot end and pooling, eventually dripping over onto my prints. I ...
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 ...
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 ...
1
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3answers
567 views

How to fix bad extrusion on my printer

Around 30% into a large print I had to cancel as the layers of the print were not full layers and looked very stringy. Here's a couple pictures of what it looked like. I have a feeling that it may be ...
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 ...
3
votes
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 ...
7
votes
2answers
371 views

Weight Reducing Design Change for Extruder Driver

I'm considering removing the driver motor from the extruder assembly, and placing it on a stationary mount point instead, and then using a flex-shaft type connector from the motor to the extruder ...
3
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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 ...
1
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1answer
2k views

3D printer extruding too thick

Last night there was an error in printing that caused the printer to stop printing, but kept the hotend on. This morning I discovered that it had fused to what it was printing after renaming on all ...
7
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4answers
39k views

What causes these round corners

Nozzle diameter = .4 Extrusion multiplier = 1 Extrusion Width = .45 <-- I feel like this could be reduced to fix it? Layer Height = .3 I'm using Simplify3D....
8
votes
1answer
332 views

Unidentified problem in printing

I have printed the XY resonance, Z resonance, bridging performance and the negative space tolerance test, from Makezine (can be found here), and I have encountered the following errors in the prints. ...
9
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3answers
555 views

Which type of extrusion problem?

I'm a novice in 3D printing. I have a Lulzbot Kittaz 3D printer with a hexagonal hot end of 0.35 mm. I have printed a test subject, and while I was printing I encountered this extrusion problem. ...
7
votes
3answers
3k views

I am experiencing some severe under extrusion

I did calibrate the extruder to extrude exactly 50/100 mm and it is fine. I have replaced the old (prehistorical) extruder that was giving me the problem with a new one. The issue does not go away. It ...
4
votes
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 ...
8
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5answers
10k views

How to connect filament end-to-end?

Is it possible to connect two pieces of 1.75 mm filament end to end, with no change in width? I am asking the question because I am interested in creating a multi-filament feeder to a single extruder, ...
4
votes
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 ...
6
votes
2answers
2k views

Slic3r under extrusion

For last two weeks I have been struggling with flow rate adjustments. I'm using an UM2, colorFabb XT 1.75mm and Slic3r. Before printing a test cube I made flow rate adjustments using the "Perimeter ...
7
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1answer
3k views

Extrusion adjustment

I recently started to use Simplify3D! It is great software, but I have a problem with adjustment of amount of plastic extruded. I have a slight under extrusion after I adjusted amount of plastic ...
1
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2answers
609 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 ...
9
votes
1answer
1k views

How thin can my extrusion be from a 1.2mm extruder?

I always assumed that the smallest diameter that you could extrude was equal to the diameter of the extruder tip itself. Recently I heard that you can actually extrude a line that's as little as half ...
18
votes
3answers
2k views

Filament extrudes at an angle

On one of the nozzles on my printer, the filament comes out at a 45 degree angle. It seems that this causes problems with adhesion to the bed and overall quality. What caused this problem? How do I ...
10
votes
1answer
9k views

Holes/ missing layers (after retraction) in 3d printed objects

My printed objects have horizontal holes in them (as seen I the picture below): This doesn't only look bad it also makes the object break at the seems. Looking carefully at the printing process I ...
18
votes
4answers
17k views

How do I keep my extruder head from getting clogged?

Using a thermoplastic MDF printer with a 0.4mm extruder nozzle, I frequently have trouble with the nozzle getting clogged. I am not sure what's causing the clog, but my guesses are dust and/or burnt ...
19
votes
2answers
3k views

What are the reasons for my 3D prints having large numbers of strings between parts of a layer?

I am printing a print using PLA on a Prusa i3 printer and an MK8 extruder, at 210 degrees celsius, 60 mm/sec, sliced with slic3r. The print consists of a base, with 4 tower-like projections that then ...

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