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Questions tagged [extrusion]

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

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2answers
42 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?
3
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2answers
143 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
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1answer
95 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
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1answer
87 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
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1answer
100 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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2answers
109 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
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1answer
198 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
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1answer
58 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
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1answer
45 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
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1answer
138 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
346 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-...
4
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1answer
70 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
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1answer
55 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
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1answer
126 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
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2answers
127 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
40 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
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1answer
473 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
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1answer
80 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
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1answer
88 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
178 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
220 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
664 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
125 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
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1answer
1k 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
278 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
305 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
123 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
150 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
842 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
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1answer
122 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 ...
7
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4answers
881 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, ...
6
votes
2answers
728 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
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3answers
208 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 ...
5
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1answer
628 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
674 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
66 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 ...
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2answers
277 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 ...
5
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1answer
821 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
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1answer
641 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
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2answers
209 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
253 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
562 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 ...
5
votes
4answers
9k 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
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1answer
148 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
votes
3answers
347 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. ...
4
votes
3answers
432 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
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3answers
1k 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 ...
7
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5answers
4k 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
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2answers
555 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 ...
5
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2answers
1k 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 ...