Questions tagged [slicing]

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

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44 views

Why are skirts designed the way they are?

I understand the purpose of printing with a skirt (or at least, I think I do): it gets the filament warmed up and flowing properly, in order to avoid extrusion problems while starting to print the ...
2
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1answer
37 views

How to slice thin curved wall

I'm trying to print a part with thin walls. I've designed it with wall 1.2 mm thick, so that I should get three 0.4 mm lines. This works just fine for the straight lines, but for the ...
3
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1answer
50 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 ...
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0answers
26 views

Seeking documentation for Apex slicer on AirWolf 3D printer

I have been, unsuccessfully, in contact with AirWolf and have concluded that there is no formal documentation available for their Apex slicer software that would explain what all the various ...
2
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2answers
81 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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0answers
27 views

Tuning time estimates in Cura

Cura consistently under-estimates my print times. I know I'm not alone here, but I've also noticed it seems most of the difference comes from travel and retraction times... that is, if I re-slice an ...
2
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2answers
64 views

Smaller outer layer height?

I am printing minis and other very detailes stuff and I find that 0.04 mm layer height gives the best looking (smoothest) result. However it takes a long time, so I am looking for ways to speed it up. ...
5
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2answers
103 views

Does CuraEngine get some advantage slicing cylinders to move the head back to the center twice on each layer?

To date I have used RepG and Repetier with CuraEngine to do my slicing. In various instances when printing a layer of a cylinder it will start in the middle and head out toward either side. Then it ...
6
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3answers
124 views

PLA printings always ~0.22% larger

I was trying to print parts for a small CD-ROM drive based plotter based on this thing https://www.thingiverse.com/thing:3521286 But as tolerances are very small and need to match the existing parts, ...
1
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1answer
47 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 ...
2
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0answers
45 views

Slicer is adding additional floor bed

I'm trying to print an architectural model of a house with 2 floors and a room on the roof. It was designed in SketchUp by a friend. I removed inner walls and floors to print it upside down to get ...
2
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2answers
77 views

Understanding water soluble support structures

I've just done my first print on an Ultimaker 3 Extended and I'm slightly disappointed with the results, so I'm trying to understand how I can do better next time. My first print Preparing for ...
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1answer
48 views

Problem with first and last layers

I bought Ender-5 and if I print sample model in bundle SD, it’s just perfect. But when I tested basic cube with raft, its base and top is just ugly. Even thought its 4 sides are perfect. Ultimaker ...
3
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1answer
66 views

Ultimaker Cura is adding redundant top/bottom layers

I'm trying to print a supporting base which will house the spindle for an electrostatic rotor. It's basically just a truncated cone with a hole down it's center to house the spindle. For reasons that ...
1
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1answer
87 views

Bevel gears 3D model

Goal : create a pair of bevel gears for 90 degrees angle axles. Context : the gears are designed with an OpenSCAD library (https://www.thingiverse.com/thing:1604369, function 'pfeilkegelradpaar'), ...
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2answers
191 views

Using maximum width when slicing in Ultimaker Cura

I am trying to slice a model that is half a mm less than max width, but not successful. What am I missing? Is there some minimum value less than maximum allowed, or something? Edit: after changing ...
5
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2answers
296 views

How to post-process G-code to make prints faster using splines and arcs?

Recently (in 2017) there was a paper that got some publicity by researchers who are using a B spline algorithm to reduce vibrations in 3D printers. But before them, a B Spline implementation seems to ...
3
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3answers
79 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
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1answer
146 views

Object's height not a multiple of layer height

This basic question has been bothering me for a while. Let's say I'm printing an object of height 20.1 mm with 0.2 mm layers. What will the slicer do? in other words, how will it print the last layer?...
6
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1answer
47 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
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2answers
160 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 ...
4
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1answer
170 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 ...
2
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1answer
42 views

Minimum material deposit threshold in slic3r

I've been using Slic3r for a while now, and for the most part am happy with the results it produces. I mostly use the standard profiles provided by Prusa for my i3 mk3. However, when watching the 3D ...
6
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2answers
350 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. ...
0
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1answer
156 views

Good profile for slicing ABS in Slic3r?

Does anyone know of a good slicer profile (i.e., an .ini file.) for Slic3r for printing ABS for a Prusa i3 MK3S printer?
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2answers
138 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
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1answer
142 views

Why are there so many print speed parameters in slicers?

The expert mode of Slic3r PE has almost a dozen speed values: I understand that ultimately print speed at a particular temperature correlates with bond strength, so things like bridges and the first ...
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0answers
33 views

Slic3r - how to combine specific perl code with Slic3r SupportMaterial.pm? [closed]

I've got a specific perl support tree script that I would like to integrate into Slic3r. Does anyone know how to do that?
5
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1answer
46 views

Slicer software capable of working with large filaments

I'm starting work on a very large 3d printer that uses very large filament. The idea is to house the entire thing in a shipping container and print things as large as cars. Filament will be some ...
3
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1answer
260 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 ...
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2answers
38 views

Cause of slicing artifacts layers not connecting diagonal errors

Sometimes my meshes turn out with artifacts Which can be seen in the bottom image. What is the cause? The first image shows my mesh which its generated from. I've tried multiple slicers. This tends to ...
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1answer
440 views

CubePro Alternative Slicer

So, having bought this cube pro duo 3d printer a few days ago I have come to see how significantly limiting the default slicer software that comes with the machine is. For the prints that I am doing I'...
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0answers
44 views

Reproducing entire slicing configurations in Slic3r

3D printing is often an iterative process and I frequently find myself wanting to re-slice an STL I've already printed, but with just one setting tweaked. The problem is, unless I have left Slic3r ...
3
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2answers
165 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 ...
4
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2answers
815 views

Slic3r top layer issues, small gaps, weird extruder paths

When slicing with Slic3r Prusa edition the top layer of most models turns out pretty bad. There are usually small gaps or weird patterns. This does not happen with Ultimaker Cura, it will have a nice ...
5
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2answers
426 views

How Do Tool Path Algorithms Decide Which Direction to Print a Closed-Loop Polygon

I understand how slicer programs create sets of closed-loop polygons to print on a layer-by-layer basis. For a given closed loop polygon which needs to be printed, the tool path generator will know ...
4
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4answers
582 views

Printing rectangular grid

I am trying to print an item with a rectangular grid (using PLA on Ultimaker 2+): Holes are 4x4 mm, distance between holes (wall thickness): 1mm. I am printing with 0.4 mm nozzle. Unfortunately, ...
3
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2answers
206 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. ...
0
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4answers
144 views

Need help to only print one small part

I'm in dire need to reprint a small chunk of a print that got messed up during print because the support for it broke which I cannot explain whatsoever. Anyway. I need to edit the STL file and I don'...
2
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1answer
447 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 ...
2
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2answers
482 views

What should the underside of a bridge look like?

I tried out printing a "bridge" for the first time using this Bridge Calibration model. The model creator suggests printing, tweaking settings, and printing again until it works "properly." My first ...
4
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1answer
766 views

Messy top layer with PETG filament?

I'm having issues getting PETG to print nicely. I have encountered pretty much every issue because when I fix one thing another issue pops up. I see people saying that you should "just copy your PLA ...
3
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2answers
752 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 ...
13
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1answer
2k 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 ...
2
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2answers
245 views

Hollow wing for rc plane

I am trying to print a wing for a rc plane with my 3D printer. In order to make the wing as light as possible I need to hollow it (and afterwards put some stable structure there). I've tried the ...
4
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1answer
917 views

Ultimaker Cura not always telling extruder to retract when traveling

I'm having a problem with Ultimaker Cura (v3.4.0) where it doesn't always tell the extruder to retract when performing a travel, which causes the hotend to leave a "trail" as it's moving and not start ...
4
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1answer
243 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 ...
5
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3answers
540 views

Strange walls/faces when importing self made model from Blender to Cura 3

I wanted to create a coin stacking device similar to this one: https://www.thingiverse.com/thing:499177 But I wanted to only 3 coins, 5c, 2c, and 1c. Unfortunately the STL came in pretty messy after ...
5
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2answers
214 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 ...
10
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2answers
2k 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 ...