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Why do some models appear broken in slicing software?

My understanding is that this occurs when the object is not a true solid. Since an STL holds the triangulation of each face and spline, the slicing engine is not "smart" enough to determine ...
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12 votes
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Trouble printing small thin pole

Basically, you print too hot (and fast) without enough cooling. The deformed small pin in your image is a perfect example of depositing new layers onto too hot (not cooled down enough) prior layers. ...
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  • 30.3k
11 votes

Slic3r - Can I add new infill patterns?

Although the core of Slic3r is written in C++ a lot of other components such as infill generation are written in Perl. Since Slic3r is open source there is nothing stopping you from writing your own ...
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  • 1,493
8 votes
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Slicing problem - Slic3r prusa

It's a nozzle size issue. The model contains a lot of details which is really challenging to print with a 0.4 mm nozzle. A big nozzle is just not able to print such fine details. You should ...
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  • 1,911
7 votes
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Cooling for big layers

Warping. Especially with materials like ABS, you want the plastic to cool down as gradually (and slowly) as possible, to prevent the print from warping as the cooling plastic contracts. On small ...
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7 votes
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Slic3r: How can I automatically modify the STL filename?

The filename is under the "Print settings" tab. Under output options, you can change the name template. You can use words like: [layer_height] to make the name dynamic. The variable you are looking ...
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7 votes
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G-Code for resetting to 100% speed

You can put the speed to 100 % by G-code command: M220 S100. The M220command is described here. Know that speed changes ...
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  • 30.3k
6 votes

Why does Cura insert G0 commands between G1 commands while Slic3r doesn't?

Formally, G0 is a rapid move and G1 is a coordinated move. A G1 will cause the printhead to move in a straight line from the begin to the end position, whereas a G0 allows the printhead to move in any ...
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6 votes

How to calculate the approximate volume of material used in 3d print?

Possible way to calculate the volume of material used is to multiply the filament length (calculated by CURA after slicing and displayed in lower right corner) and surface of filament tip. Volume = ...
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  • 221
6 votes
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Heatbed control with Pronterface

3D printer get the temperature settings from g-code file. The firmware settings for min and max temperature are just safeguards. You should verify instructions within the g-code file. If you are not ...
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  • 1,911
6 votes
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Adding extra Z-offset to bed for PETG in Slic3r

An extra gap of 0.2 mm on top of your existing gap seems rather illogical as the filament is not squished at the build plate anymore. Furthermore 0.2 mm plus something you already have will soon ...
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  • 30.3k
6 votes

20x20x20 calibration cube size change after switching filament

Filament type should have nothing to do with the issues you are facing. This is a mechanical issue or a slicing/scaling issue. The hotend should, if instructed to go to 20 mm height actually go to 20 ...
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6 votes
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Ender 3 severe under-extrusion

It is not too rare to create a new machine in Ultimaker Cura to be set to 2.85 mm as this is the default. Also some bugs in the past did reset or assume this diameter unless you manually set it, and ...
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  • 19.2k
6 votes

Trouble printing small thin pole

The thin core gathers too much heat in the printing process. If you need to print slender objects, either: Print several. This is the most simple solution and best for beginners. Increase cooling. A ...
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  • 19.2k
6 votes

Trouble printing small thin pole

The other answers have addressed the heat problem. The other risk is that a rod printed vertically like this is prone to snap, because the weakest axis is between layers. I often rotate pieces like ...
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5 votes
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How can I calculate volumetric speed for Slic3r auto speed?

Auto speed is calculated from maximum volumetric speed in mm3 per second. If you normally print at 80 mm/s, your extrusion width is 0.5 mm and you are printing 0.2mm high layers, your volumetric speed ...
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5 votes
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Marlin menu navigation slow while printing

A Delta printer requires constant complex calculations to produce straight lines while printing. The firmware, therefore, spends most of its time figuring out the step and timing sequence, and only ...
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  • 1,803
5 votes
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Print Nozzle Dragging and Smearing Filament while Printing

You stated your print of a 20mm cube came out spot on so I will rule out any z-axis configuration issues. It clearly seems like you are extruding too much plastic. I use slic3r myself with repetier ...
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5 votes

How to remove firmware warning

Removing that line will not affect your printer, except that it will get rid of the warning displayed on the screen. I wanted to know [...] if there's something else to consider. You should ...
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5 votes
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What determines print start location on the build plate?

So it turns out there are elements from each of the previous answers that make sense here, but its not a clear picture. I've spent a whole lot of time trying to make sense of this. I also upgraded my ...
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  • 251
4 votes
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How can I set the 1st layer after a raft in Slic3r to print at 1st layer speed

This is still work in progress, and here is what I have so far, but first: A useful alternative for similar problems: A problem very similar to this would be to use different settings for different ...
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4 votes
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Seamless prints?

If you ever seen 3d printouts on your own and you did keep it in hand then you probably felt layers. Most printouts contains 3 main "components" bottom and top component (floor and ceiling) outline (...
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  • 3,438
4 votes

Skipping Y-steps, only when using Ultimaker Cura

You answered your own question in a comment. Yes, of course, increasing the maximum supplied current to the motor gets rid of the issue. Still, I'd rather go with lower current to limit heating up ...
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  • 4,398
4 votes

Where to find z coordinate in G-code for delta printer

It isn't hidden at all. It's just that the Z-axis position only changes with each layer change, so the Z coordinate is only passed at layer change. On line 17 of your example G-code, it starts the ...
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4 votes
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What do the pink colors in Slic3r preview signify? If it signifies a problem, how do I fix it?

In slic3r preview, salmon (pink) represents infill, yellow represents perimeters, and green represents support material, including skirt and brim.
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  • 2,282
4 votes

Second layer of ASA print 'runs'

I've now worked out the reason for the plastic 'running' on the second layer. It is because of the way that I prepared the G-Code file, using the option in Slic3r which lets you alter the layer ...
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4 votes

Subtract of two STL files in Slic3r software

Given my limited familiarity with all the CAD tools that exist, I would fall back to something that I know does binary operations on volumes -- openScad. One can create two objects, one from each of ...
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  • 4,398
4 votes

What is the best way to print a coin with depth map?

From a single image from this perspective (front view) you cannot map the coin surface in detail. There is reported limited success in estimating the depth of single images, but, this is for images ...
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  • 30.3k
4 votes
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How to correctly print an object with supports

You need to put a check mark to enable supports in Slic3r as you cannot print in mid-air. This option is found under "Print settings" with header name "Support settings". Please look at the Slic3r ...
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  • 30.3k
4 votes
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Why are my lowest layers not solid?

I printed the thing for some layers to see what the printer actually does: There are clearly too many retractions and unretractions. This can be seen in advance by letting Slic3r show the ...
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