Questions tagged [infill]

Questions about the internal structure of a 3D printed part.

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4 votes
2 answers
54 views

Cura uses lines instead of concentric infill

I'm printing a ring that's a replacement for the non-slip base of a mixing bowl. The ring is about 130mm in diameter, with a rectangular cross section, like this: I'm using Cura as the slicer, and I'...
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0 votes
0 answers
19 views

Infill troubles and extrusion stops mid print

So the last ten days were suddenly wrought with problems, from these strange infill deviations to my prints failing due to the extruder just stopping while the print head continues on. I'm getting ...
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0 votes
1 answer
34 views

What is the optimum infill style for printing a roughly spherical object on an Ender 5?

I'm going to print several fruit and vegetable on an Ender 5, with a maximum size of 6 inches. They are all roughly spherical in shape. Melons, squash, etc. What is the optimum in fill type to use to ...
1 vote
1 answer
275 views

Infill line distance at 100% infill density

I want to understand what the infill line distance of 0.4mm signifies. I am printing at 100% infill.
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0 votes
0 answers
37 views

How to tune pattern for a given infill density

Obviously the density and pattern are strictly related but seems values aren't tuned automatically according the combination of various patterns and if I change the infill density Cura chooses ...
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1 vote
1 answer
188 views

CR-10 Smart with weak infill

I had a hard time printing some parts as the brim was printed very well contrary to the first layer, wall, and especially infill. I noticed that filament lines were too thin when printing walls, ...
1 vote
1 answer
433 views

Adaptive infill density in small region

I'm using Ultimaker Cura to slice my 3D models, and I often have a problem with object with dimensions over multiple orders of magnitudes. Basically, if I set an Infill of 20 %, the infill is ...
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2 votes
0 answers
195 views

Gyroid infill affects outer walls

I was printing test cubes to adjust my extrusion ratio, and had ugly walls. I noticed that the pattern on the walls was always the same, and disappeared if I chose 0 % infill (gyroid from PrusaSlicer)....
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2 votes
1 answer
155 views

How do I fix infill support in Cura?

I am making this dog feeder. My goal is to 3D print it using an Ender 3 V2. I am using Cura to slice it. When I slice it, though, Cura does not see the Top part (Dispenser box) as a solid piece. And ...
1 vote
1 answer
67 views

My first 3D print, will my setting work?

I'm planning to print using a public 3D printer (Ultimaker 3) and was wondering if my settings will work. There is a 4 hour time limit. The parts don't need to be strong. I've provided some ...
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3 votes
2 answers
107 views

Fill doesn't reach perimeters on supports (Simplify3D)

My Tevo Flash works well. Right now, I'm trying to print a thin, disc-like part on supports. The 3 perimeters at the edge of the disc are OK. The dense fill zigzag pattern makes many U-turns near the ...
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0 votes
0 answers
69 views

Cura 4.8.0 Custom Infill using Shape Overlap Modifier not working [duplicate]

I am using a rectangle to select an area of the model I want to have 100 % infill. You can see my setting below. After several prints, I noticed the little arm was still breaking when under pressure......
0 votes
1 answer
185 views

Custom Infill Pattern Based on Self-Generated Geometry

I am trying to look for my options for generating a custom infill pattern which complies to a geometry that I want to repeat. I can get the geometrical coordinates too in order to make the final shape....
0 votes
1 answer
164 views

Problem with grid infill (line positioning)

I have a problem with the grid infill on my BCN3D+ Dual Paste extruder: when I print a structure the lines of the infill are not evenly printed, every two lines the gap between the lines is higher (...
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2 votes
2 answers
1k views

Delamination issue Ender 3 Pro PLA

I recently bought some SUNLU PLA black filament and was attempting a small print with it and it started to come out in strings and lumps and was incredibly inconsistent. Before this I'd been using ...
1 vote
1 answer
2k views

Infill not printing well. What I am doing wrong?

I am a new to 3D printing, somehow, the infill of my print compiled by Cura 4.5 is weak. I print with generic PLA (FD plast) on 200 °C. See image below: Print details: I have a Zonestar Z6FB which I ...
4 votes
2 answers
1k views

Ender-3 Pro - PLA mid-layer warping (layer separation) - salvageable?

I just got into 3D printing with an Ender-3 Pro. The test dog printed great, some custom small/thin objects printed good, and now I tried my first big object. Designed in Tinkercad (link to my (...
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1 vote
2 answers
228 views

Issues with print Prusa i3 infill breaking and causing clogs

I'm having some issues with my Prusa i3 prints. I'm trying to print the default beer opener print that came with the Prusa's memory card but the infill will break causing clogging and now allowing the ...
2 votes
0 answers
98 views

Weird solid infill for chamfer

I am very frustrated with some weird solid infill issue, mostly due to sloped wall such as chamfer for fillet. Here is an example. I have a 20x20x20 mm cube with 2 mm rounded chamfer at the ...
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5 votes
3 answers
3k views

What is the best infill pattern for shearing strength?

For practicality sake, I need to print a design such that there will be weight hanging parellel to the layer lines. Is there an infill pattern that would be better than others at handling this? I ...
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2 votes
2 answers
212 views

How to slice a model to ensure at least a certain amount of filament per layer?

I am designing a part with a material which can bear up to a certain stress. To keep the stress within the design limits, I need to ensure a certain surface of solid material per layer, in other ...
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3 votes
1 answer
991 views

Infill keeps "shoveling", but perimeters are fine

While printing PET-G (@ 220 °C nozzle and over 58 °C bed temperature), the outlines always print fine but the infill keeps shoveling. Could I be printing too hot or too cold? I am ...
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6 votes
1 answer
348 views

Do Cura's self-crossing infill patterns account for excess material from self-crossing?

As far as I can tell, Cura's infill patterns which are self-crossing, such as triangles, don't do anything special to account for extruding material over the ...
4 votes
2 answers
1k views

Slow down first layer above infill in Ultimaker Cura

In Ultimaker Cura, is there a setting to slow down just the first layer (or two layers) covering over the infill? I'm not talking about the top layers, since you may have infill covered over during ...
2 votes
0 answers
641 views

Best infill for inter-layer adhesion

I'm fairly convinced that gyroid is the best infill for a lot of purposes, and use it regularly now, but both conceptually and anecdotally, it doesn't seem very good for reinforcing inter-layer ...
3 votes
0 answers
56 views

underextrusion of infill? [duplicate]

Running a bency print to test my new cooler, I noticed an odd effect on the rectilinear infill I'm using: It's almost as if the individual lines of the infill are tearing. The thing is that the ...
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6 votes
2 answers
1k views

Uniform squishy infill

I try to print a stamp with flexible filaments. The problem I encounter is that the filament is flexible, but not soft. This leads to small differences in height to parts of the stamp not working. ...
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5 votes
1 answer
3k views

Infill failure when printing larger prints

I'm new to 3D printing an I just got a Creality Ender 3 and I think I'm getting some good results with small prints. However, now that I'm trying some bigger prints and I'm running into infill ...
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6 votes
2 answers
7k views

Infill is rough - how to enhance?

My i3 MK3 is printing very well for solid parts of an object, but it messes up with infill. As you can see in the image, the infill is broken into pieces and bends to that the surface becomes rough ...
2 votes
1 answer
1k views

Gap between infill and walls for one filament only

When I'm printing with my Chromatik filament white, 1.75 mm in diameter, I observe a gap between the infill and the walls (see picture). Everywhere on the web I can find explanations for this kind of ...
4 votes
2 answers
545 views

Internal wall does not print in horizontal print orientation

I have an object that has cutouts in it (alignment pins fit in the cutouts). The shape of the hole is a right triangle with the point clipped off to create a flat surface in the deep part of the hole. ...
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1 vote
2 answers
275 views

Why does infill percentage stop the print from sticking to the bed?

I've recently purchased an Ender 3 and have had great success with some Cura settings found on a YouTube Tutorial at 0.2 mm resolution. So then I noticed that there were default settings in Cura for ...
  • 11
34 votes
4 answers
42k views

What are the advantages of gyroid infill?

I've seen a few print time-lapse videos lately which use gyroid infill: wavy lines, which deform across layers so that the waves end up alternating between the two axes. Other than making the time-...
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10 votes
2 answers
6k views

slic3r: Can I vary the infill percentage for different heights of my model?

How can I vary the infill percentage for different layer heights of my model? Context: The bottom part of my model needs about 20% infill. The geometry of the top part of the model (mostly cones of ...
3 votes
2 answers
1k views

Using multiple infill types within one model [duplicate]

When modelling for 3D printing, can I distinguish somehow the type of infill in various areas of the model? Say there may be some areas in the model where I want 100% infill (maximum strength) but ...
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4 votes
1 answer
899 views

Infill failure at the far corner of two different prints

I am a complete newbie at 3D printing (although learning fast). I switched from the default Qidi slicer to the Cura slicer on a Qidi X-Pro machine (which is wonderful). Using: plate 50 °C, 0.4 mm ...
  • 495
4 votes
2 answers
595 views

What is this weird support line doing in this print?

I am a newbie to 3D printing and ran into a weird infill line on my second 3D printing object on a new Qidi X-Pro machine (which works great). I've included a screenshot of the infill line, which is ...
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4 votes
2 answers
424 views

How are infill paths connect to form an efficient path that respect the object's geometry?

I am attempting to write a basic slicer for some objects I am working with. I need to write a custom slicer as the objects are not polygonal based (they are implicit objects) and therefore cannot be ...
7 votes
4 answers
340 views

Does Cura have an algorithm for any infill percentage or does it just have specific patterns?

Looking in the Cura interface, I can set any whole number 0-100 for the infill percentage. Does Cura have an algorithm to calculate a pattern for any of those possible values, or does it have a few ...
31 votes
5 answers
52k views

Different infill in the same part

I´ve have read an article to change different pattern depending on amount of layers, but my question is if is possible to have different infill in the same part? For example: Base: has the infill of ...
4 votes
3 answers
659 views

Prusa i3 MK2 doesn't accept the printing material

We have a Prusa i3 MK2 and we've changed for a print with another colour material but when I pressed "load filament", it didn't make anything. Often after five times doing that the printer works. I ...
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6 votes
1 answer
413 views

Square and parallel infill patterns

I don't know how to word this right now but I am going to try my best... moving on! So I was playing with my slicing software (Craftware) and I was looking at two infill patterns, Square and Parallel....
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6 votes
3 answers
432 views

FEA in 3d printed solids

I would like to get a pretty accurate method to do finite element analysis (FEA) on my 3d designs considering the infill. I use Autodesk Inventor to design parts but the FEA can only be applied to a ...
4 votes
3 answers
4k views

Ultimaker Cura infill issues (weird vertical pillars due to underextrusion)

I have spent ages debugging this problem but I can't figure out what I am doing wrong. I have a Wanhao duplicator i3 (Prusa i3 clone) and until recently I used Wanhao's adapted version of the Cura ...
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5 votes
2 answers
934 views

How to slice this wing so it has a smooth infill like perimeters

I have this wing design that I want to print: You can notice that its walls have a thickness, which is 1.0 mm. I want to print it so that the perimeters are inside that thickness. Here is the ...
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2 votes
1 answer
191 views

Does anyone know how Slic3r determines its infill adjacent strand spacing, instead of using fill density?

I'm doing research on changing the fill density into the air gap width, adjacent strand spacing, or whatever, instead of using the fill density, as it will give me more precise controls. Question 1: ...
4 votes
1 answer
285 views

How do I repeat the layers of Slic3r for every 3 infill layers with different angles? (Might need some programming knowledge)

I'm working on developing alternative infill layers to print at different angles, using Slic3r. Using Slic3r's rectilinear infill, printing at specific angles for 3 layers then repeat. I'm working ...
7 votes
2 answers
7k views

Infill pattern comparison

I'm relatively new to 3d printing, and wanted to get a few things understood. Firstly, I am unclear on how Hexagonal infill is stronger than, say, diamond pattern. Can anyone explain how the ...
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2 votes
1 answer
343 views

Will my Duplicator i3 be able to print this hole in the vertical wall without infill?

Will my Duplicator i3 be able to print this hole in the vertical wall without infill? The wall is 7mm the diameter of the hole is 24mm, the shell thickness is 0.8mm.
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5 votes
4 answers
1k views

Thick wall or solid part of an otherwise medium-fill part

I'm trying to design a camera handle, which will be around 8" long and will have a brass camera thread insert in the end, where the camera will be mounted. (That way, I don't have to screw the camera ...
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