Questions tagged [slicing]

Questions about slicing. Problems and challenges in the slicing process of models should use this tag.

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24
votes
5answers
38k 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 ...
18
votes
1answer
8k views

How does one use a heat tower?

I've been asking around on how to choose the right temperature for a given filament. I noticed that with two different brands of pla I have to print at different temperatures, and the manufacturer ...
9
votes
1answer
3k 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 ...
6
votes
1answer
1k views

Easy way to refine a 3D-model for 3D printing by removing internal geometry

I have been given a proprietary 3D file of a real world item from an item manufacturer with the obligations not to hand it out to anyone to produce a print in a low single digit percentge scale of the ...
13
votes
4answers
26k views

Why is it conventional to set line width > nozzle diameter?

I recently became curious about the Line Width setting in Cura and why one might change it if they aren't using different size nozzle. Since I've gotten my Ender 3, I've always kept the line width ...
8
votes
3answers
4k views

Missing top layers in Cura

I've just tried to make some small labels with embossed lettering. Base is 1.5 mm, with letters and a perimeter protruding by another 1 mm. After printing, I realised that Cura is not giving me a top ...
7
votes
3answers
3k views

What causes gaps in small region fills and how to prevent them?

I saw this cool Nuka-Cola bottle opener. I made it: As you can see, nasty gaps have appeared in the text. What could've caused them? I am sure I set the filament diameter correctly. So why did ...
8
votes
1answer
1k views

Skipping Y-steps, only when using Ultimaker Cura

In order to find out why my printer sometimes skips Y-steps (always in the same direction) only in Ultimaker Cura, I am digging into the G-code to understand the problem better. However, thousands of ...
12
votes
1answer
21k views

How to configure Cura to run the Z probe before heating

I'm using Cura as my slicing/printing software and I just started using the BuildTak printing surface. The BuildTak is damaged by pushing a hot nozzle into it and my printer's (Robo3D R1+) ...
6
votes
2answers
14k views

Combing and Coasting

Here is my understanding of Coasting: Coasting stops extruding early in a move so that the string itself will finish the layer. Here is my understanding of Combing: Combing reduces the need to ...
13
votes
1answer
3k views

How to build CuraEngine?

I've been trying to build CuraEngine on Ubuntu following the Github instructions. The problem is that it lists some requirements: Clone the CuraEngine repository; Install Protobuf (see below); ...
5
votes
1answer
935 views

How to line up (x,y) print area between hardware and software?

I'm trying to line up the physical print bed of my printer (Printrbot Simple Metal) to the virtual print area of the slicer (Cura). So far, they've never been properly aligned. It was never that big ...
13
votes
4answers
6k views

Why do some models appear broken in slicing software?

In my slicing software (Slic3r) some of the vertices/walls of my model seem to have disappeared, so that the inside of the model - which should be solid - is visible, while the surface appears as a ...
10
votes
2answers
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 ...
8
votes
1answer
94 views

Cooling for big layers

There is an option in Slic3r to disable cooling for layers that take more than n seconds. What would be the disadvantages of having cooling on big layers ?
6
votes
2answers
666 views

Slic3r settings for flat slopes on top

I am having trouble printing a hollow object using Slic3r. On flat slopes on top, there are gaps that I cannot get fixed. The perimeters of successive layers just don't cover each other. Cura however ...
5
votes
2answers
160 views

Which software do I need to start print something?

I'm still new to 3D printing and I want to print something. I expect that I'll mess it up since I find nothing to adjust it but it is now laying around for 4 months and I'm sick of it. So my question ...
5
votes
2answers
610 views

How to avoid collisions with already printed objects?

When printing several objects, I recently encountered a problem that arises when the structure in itself is relatively thin or the support towers have a small surface: the printhead would in motion ...
4
votes
1answer
4k views

Slicer for 32 Bit Operating systems?

I currently only have access to an old, 32 bit OS and need to slice a couple things. While there are a lot of slicers around, most popular ones, for example Ultimaker Cura 4, need to run on a 64 bit ...
4
votes
1answer
997 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 ...
4
votes
1answer
3k views

Slicer that exports vectors or pics for every slice

For a large scale project, I need a slicer which gives me the slices as image (BMP or vector). I have a 3d model and want to assemble it manually using large printouts on cardboard. For this I need ...
4
votes
2answers
287 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 ...
3
votes
1answer
1k views

How could I print a large sphere-like object?

I have a STL file with a rather large roughly-spherical object. I'd like to 3D print it to be fairly large, and hollow inside. Since the printer I'd be using has a max size of (18–20 cm)^3, I'd have ...
3
votes
2answers
2k views

Help to reconcile nozzle diameter, deposited line width, and wall thickness in Cura

I need help resolving some conflicting logic between the nozzle width and shell thickness--parameters in Cura 16.021--and the physical deposited line width (width on x-y plane). DEFINITIONS For ...
3
votes
2answers
621 views

Inconsistent inner/outer dimensions

Using CuraEngine with my Ender 3, I'm getting what I'd call inconsistent inner and outer dimensions - for example, a nominally 3 mm peg is significantly larger than a 3 mm hole, and it takes ...
3
votes
3answers
267 views

Slicing directly from non-mesh data?

This is a bit of a weird question, and I imagine the answer might simply be "no." But here goes anyway: I'm writing some code that generates shapes for 3D printing via "implicit surfaces," i.e. a ...
3
votes
1answer
606 views

Ultimaker Cura 3.6 choosing to fill in narrow walls with diagonal striping

I'm playing with printing some Lego-like bricks. I'm using brick models where the wall thicknesses are aligned to match an exact multiple of my printer nozzle (.4 mm nozzle = 1.2 mm brick ...
2
votes
3answers
1k views

How to get a quality print of a thin single-walled shell?

I would like to 3D print a small thin tub/mold for an epoxy resin. I have tubings inserted into holes, and I need to fix these tubings securely with epoxy (see picture below). The space is very ...
2
votes
2answers
1k views

How to determine real printing speed (TEVO Tarantula/Cura)?

Recently I noticed that Cura always is giving me less printing time than the print itself takes on my TEVO Tarantula with Marlin firmware. The time difference is about 15 %, at requested 50 ...
1
vote
1answer
200 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 ...
0
votes
0answers
138 views

Can't manage to force my print to standby while I insert a nut - Prusa Slicer and Tronxy XY2 pro

I use the Prusa Slicer on a Tronxy XY-2 pro which I believe uses RepRap firmware. I believe it uses RepRap firmware because I had to input it into the Prusa Slicer initialization questions, but I'm ...