Reprap Forum - Slic3r

slic3r error (2 replies)

dustinoff — Sat, 25 Oct 2025 19:40:30 -0400

Slic3r isn't completing this top surface. The top/bottom is 3 layers and the 1st and 2nd top are perfect.
It does it on another computer with different infill, so it isn't a computer issue. Both running W11 25H2.
There is no issue with the stl or the file that created the stl that I can see.
It doesn't happen on another similar stl.
Why is this happening?

[attachment 121528 slic3rerror.png]

Slic3r Conditional G-Code fail (3 replies)

scumari — Mon, 21 Oct 2024 03:04:43 -0400

Hi
I am trying to get the following condition working:
{if [layer_num] == 0}{if [next_extruder] == 1}G1 E16 F1200
It seems that layer_num is always zero!
What can be wrong here?

Thanks in advance, Rick

Slic3r crashes on Mac (1 reply)

Replace — Sun, 30 Jun 2024 06:26:49 -0400

from a day in the recent past, my Slic3r will not start any more on my iMac
Sonoma, AMD radeon pro 5500

Did download a new one, but same.

Is it not working on Mac any more ?

G-code design in parts (no replies)

Tg37 — Fri, 28 Jul 2023 04:37:59 -0400

Hi all I have the following question about G-code design when you have at least two parts in the printing model.

Like shown attached, I have two parts in the printing model, in which the 'vascular' part is assigned to extruder 1 and 'parenchymal' part is assigned to extruder 3.

Now I want to further explore the following options for generating the G-code;

1. Extruder 1 (E1) and extruder 3(E3) using two different infill pattern, and potentially different infill density? Can this be achieved? If so, how to achieve?
2. Always start the extruder 3 first, followed by extruder 1 when printing each layer. So far the autogenerated code goes to extruder 1 first, followed by extruder 3, then following next layer is extruder 3, followed by extruder 1 (to minimize the extruder exchange).
Essentially the autogenerated code goes
E1 (layer 1) - E3 (layer 1) - E3 (layer 2) - E1 (layer 2) - E1 (layer 3) - E3 (layer 3) - E3 (layer 4) - ...
What I wanted
E3 (layer 1) - E1 (layer 1) - E3 (layer 2) - E1 (layer 2) - E3 (layer 3) - E1 (layer 1) - E3 (layer 4) - ...

Thank you so much for the help in advance!!

PrusaSlicer (no replies)

Paride — Tue, 13 Jun 2023 05:40:52 -0400

Una domanda agli esperti del forum: Si puo' stampare direttamente tra Pc e stampante 3d con il software PrusaSlicer?
Se si come si fa?

grazie
Paride

Z seam fix? (1 reply)

hvar89 — Sat, 18 Mar 2023 16:00:39 -0400

It's my first post here, so I apologize if this is something that have been widely discussed before.
I'm sorta new to 3D-printing, only printing now and then.
My printer is an Artillery X1 and I'm using Slic3r as this came with the machine. Pretty satisfied, no problem there.
My problem that I noticed is:
I'm printing a holder to a Capto tool (sandvik coromant) which has a rotary/wankel/dorito-shaped coupling.
This shape is therefore inner wall, so the Z seam is sorta ruining my tolerances.
I therefore wonder if there is something I could try to change in the software to get mostly rid of this?

Best regards
Howard

slicer 1.3.0 bed temp drop to zero after first layer (behavior change) (no replies)

gafu — Tue, 06 Dec 2022 11:40:23 -0500

When importing old config files (from 1.2.9) to slic3r 1.3.0 you maybe have set the temperatures in filament profil setting only to first layer temp.
this was in previous versions working fine, but now you need to specify bed plate temperatur after first layer not to be zero, because now this setting will switch the bed heater off.

So if you experiencing loose prints after change to 1.3.0 it could be about bed heating drops after frist layer.

Its not a bug, because ist was in changelog: "Bed temperature can now be specified at 0."

On older versions it had only be specified for first layer and second setting can be at zero, which made the printer heat along the full print with start layer temperatures.

Slic3r 1.3.0 zoom in 3d-view (linux) (no replies)

gafu — Tue, 06 Dec 2022 11:34:44 -0500

Since 1.2.8 zoom in 2D view was modified to center around the mouse location, like it was earlyer on 3D-view panel too.

But now on 1.3.0 the zoom happens at 0,0 coordinates at distance to the objekt
So i fiddeled around and found how it is going now.

You need to move the 3d-view angle with the right mousekey pressed until you centered your object in the window.
Now you can zoom close zu see your extrusion path instead of empty bed corner.

This was no problem on machines/settings for old printers with makerbot-genes, these have xy0,0 at bed center und default zoom zu 0,0 hits the centered print object by accident.

Dont know if this behavior was itended. Its not mentioned in chancelog, so it look like it was not planned to do.

complete individual objects. (no replies)

rew — Fri, 25 Nov 2022 05:17:57 -0500

I have a print I want to do, and I'm pretty sure that I can make it work with my printer even though you'd normally say that some things are to high, and a collision would occur.

If the right order is chosen, you can print from the front of the bed, towards the back. As long as the full clearance towards the front of the extruder is observed, the first object can be as high as you like,.

While writing this I've had an idea and it works: I have my reasons, but I do the skirt manually with another object. It goes around the whole bed. Removing that seemed to help. That would need to be printed first, and it would work and not influence the other two objects. I've removed it and enabled the normal skirt and now it is already printing.

But to me, it seems that it is complaining wrongly that a collision would occur, just because my height-0.3 prints-first object encloses the other two.

What would I need to enter into the clearance values to get maximum leniency and allow my own jugement to check for collisions. (I need to export it to the printer and use "octoprint" to check for the collisions. (maybe the "preview" would work but if I get collisions, it won't show a preview either).

As an enhancement wouldn't it be possible to say "While printing object 3 a collision with object 2 would occur at z=4.3" ? (And generate the stuff needed for the preview to work). I've started using Slic3r before it had the preview (I think) so I haven't used it much. But it doesn't show the "complete individual objects", neither does the layer view, so I have to use the octoprint gcode viewer to judge that it is doing things in the order I like.

Elephant Foot on slic3r ?? (1 reply)

Vactirio — Thu, 03 Nov 2022 04:17:31 -0400

Hi,

Googled a lot about how to fix elephant foot on first layer but could not locate any info.

Any Help?

Thank You
Andreas

Automated Batch Slicing as Web App (1 reply)

jreinke10 — Sun, 25 Sep 2022 09:21:51 -0400

Hello all,

I learned you can automate slicing via Windows Batch files and the command line per the Slic3r documentation here. I then found a video outlining the process and was able to copy the process effectively.

However, as a MechE a lot of my software knowledge is limited. I would love to turn this sort of process into a tool with a UI where you can drag and drop files and get back the sliced G code. Its' been recommended to me to try doing that as a web app with the support of tools like nextjs, nodejs, and express.

However, I wanted to get some recommendations from the community on how this might be best done or if the current approach is a decent one.

Cheers!

3D and Preview difference (no replies)

rstergar — Mon, 04 Jul 2022 06:10:49 -0400

Hi,

I draw something in freecad to print but I cant get all the lines to print?

In 3D and 2D looks OK, but in Preview and Layers there are missing lines...

I try to draw thicker lines and edit settings but nothing changes...

Please help.

Thank you

Disable M116 (no replies)

PROTO_TIPO — Sun, 27 Mar 2022 02:41:52 -0400

Hi there I´m new in to the 3D printing world, I made a core-xy 3D printer using an Arduino Uno with the Teacup firmware. and I´m currently using
Slic3r 1.3.0v to generate my g-codes, and Pronterface to run the g-code. All works perfect, the speed is good, the printing quality and accuracy are great. The only annoying thing is that when I hit start printing, the printer says "wait for temperature to be reached" and the current temperature gauge freezes, (ok that is normal I guess) but it does that even if I manually preheated the hotend (at 185c° for PLA) and then hit the print button. Then after few minutes of waiting, the print start, but the starting moment seems kind of random regardless to the temperature of the hotend. So what I have been doing is editing every g-code and manually deleting the code line "M116 ; wait for temperature to be reached" . That works just fine, but I would like that Slic3r do it automatically. I know that you can edit start and end g-codes in Slic3r (in Printer Settings / Custom g-code), but there was no M116 there, still when I export the g-code, the M116 is there. So I want to know if there is any way to edit that part of the start g-code in Slic3r and get rid of the M116 entirely.
I know that I will have to wait for the temp to be reached and then manually start the print, and I´m ok with that.
P.D. I also had some clogging due to heat creep because of the 3D printer just siting there "waiting for temperature to be reached" (it was already 185c°. I know that because I used an external thermometer to check the temp at the hotend).
I will attach an example of the g-code just in case.
Many greetings and thanks in advance

Is there a setting to favour "long lines" (no replies)

auser — Sun, 27 Feb 2022 07:04:43 -0500

Dear all!
i have a model that gets sliced a bit "unfortunately". It has long zig-zag lines but instead of slicing the model such that the lines stay long, slic3r (prusa) creates many "circles".
This is the model: [attachment 119225 zigzag.png]
And this is how it gets sliced: [attachment 119226 slic3r.png]
I have tried various wall / extrusion widths without success, also tried cura, results in similar slicing.
Does anybody have an idea how I can suggest to the slicer that i would like to have continuous long extrusions?
many thanks for all suggestion!
auser

Please help tinkering slicing profile (3 replies)

konstantin.neo — Sun, 27 Feb 2022 11:15:48 -0500

I have been tinkering with Slic3r to get a clean continuous top layer, but still some details (highlighted in red) that dont make sense.
Is there any setting that could help Slicer make a more continuos printing?

I use 0.4 nozzle. Maybe it will be helpful for Slic3r to build my solid so I get the desired result? Typically I use a vector path and sweep a profile on it. What width would be ideal for Slic3r?
I want a double extrusion side by side as a base on layer 1 and 2 more layers single extrusion on top, totaling 3 layers. Like an inverted captital T letter.

New to Slic3r, beginners questions (no replies)

HugoW — Thu, 24 Feb 2022 16:19:48 -0500

Hi,

in an attempt to ban the last illegal software from my computer, I was told this Slic3r is very good and freeware. OK, let's get it done. I've copied most settings and parameters from my previous slicer and I can slice and print now. Two questions that have come up:
1) The Filament settings have their specific Custom G-codes, Start and End. Where are those positioned relative to the Start and End codes in the machine settings?
2) The holes on my test print are undersized, as usual, and I ironed out most mechanical causes. In my previous slicer, there was a compensation for holes being too small. In the Slic3r manual, under dimension error, at the bottom I read XY compensation. But that seems to effect the hole print, so also the outside dimensions. And that wasn't the idea. Is there a feature correcting only the holes, not the other contours?

Thanks,

Hugo

Printing single lines of filament? (1 reply)

konstantin.neo — Sun, 27 Feb 2022 10:28:59 -0500

Hi.
Please help me.
This is what I am trying to do:
I have a vector drawing. I want to 3d print it by a single bead on each of the lines.
Is it doable?

Deleting Printer configurations (no replies)

wannathermal — Mon, 21 Feb 2022 16:04:54 -0500

I have a couple dozen printer/print/extruder configurations across multiple computers that I want to clean up an consolidate. I can set up network access for the configs (as per the Slic3r manual) but I would first like to clean up the profiles I no longer use. Where are these configs/profiles stored?

Unwanted Additional Thin Wall (no replies)

miket83706 — Tue, 25 Jan 2022 00:36:47 -0500

Attempting to print an organizer....that holds pens, tv remote, etc.

ISSUE: Additional thin wall is created by Slic3r that is unwanted. It is NOT in the 3D model.

I have attached the following:
- STL file
- 2 screenshots showing the model prior to and after slicing that shows the issue at hand.
- 1 screenshot showing the Print Settings in Slic3r.

If I uncheck Print Settings / Advanced / Fill gaps then it removes the unwanted wall but then many the short 3 mm walls are missing tops. I've included a screenshot of the post slice with this setting off.

Any ideas anyone?

Greater layer hights 5mm < (8 replies)

DorisBoris — Fri, 09 Sep 2022 14:18:46 -0400

Hey,

I am having concrete printing project and therefore need for higher 5 mm < layer thcknesses. I haven't been able to increase layer thickness in slic3r above 1 mm.

Is it possible to have higger thicknesses and how?

Thanks for your answers!

g-code leads to: Print doesn´t stop when printhead is traveling (2 replies)

Klara — Tue, 13 Jul 2021 08:12:12 -0400

Hey everyone,

I am new to 3D-printing and worked with slic3r to create a simple cylinder with a grid structure. The problem I am having now is that when the g-code is generated somehow the instructions for turning off printing when travelling to a new location are missing. I created a commented g-code (both attached, settings for the print may vary), in which you can see where the extruder retracts, so I could manually input the commands but that is too inconvenient.
Can somebody help?

Can't move part on plater. (4 replies)

lar3ry — Tue, 06 Jul 2021 11:32:51 -0400

I just installed slic3r V1.3.0 on Ubuntu MATE.
I can't seem to drag a part with the mouse to other places on the bed.
When I try, the part moves, but as soon as I let go pof the mouse button, it snaps back to the centre of the bed.
I have tried with all three mouse buttons, and with Shift, Ctrl, Alt and that one for Windows.

I also can't move it with the arrows.

What am I doing wrong?

PC fan control (no replies)

ben.dani1997 — Sat, 05 Jun 2021 07:57:05 -0400

Hello there!

I'm trying to make custom g-codes for a tool changer build and I want to control the part cooling fans. I found variables like min_fan_speed and max_fan_speed, but I want to use the value that Slic3r calculated not what I set, and I can't find a variable for that. Is there some way to access that value?

Thanks!

CNC milling machine as frame construction (no replies)

Beyza — Tue, 18 May 2021 06:13:27 -0400

Hello together,

I would like to use a CNC milling machine with XYZ control as a frame construction for my 3D printer. I intend to print a cube sample with an edge length of 30 cm. For this purpose, the frame construction should have the external dimensions: X=Y=65 cm, Z=50 cm. Is it possible to use an existing slicer program like Slic3R, Prusa Slicer or Cura for the axis control ? Has anyone had experience with this ?

Thanks in advance !

Best regards,
Beyza

Is it possible to control additional servos with Slic3R ? (no replies)

Beyza — Wed, 12 May 2021 01:00:33 -0400

Hello together !

Can someone tell me if it is possible to control additional servos with Slic3R?

Best regards
Beyza

Creating a custom 'vendor.ini' profile or text editing an imported profile (1 reply)

pizzadude — Fri, 07 May 2021 12:13:11 -0400

Hi all,

I'm completely new to Slic3r/PS/SuperSlicer and so might be overlooking the obvious, but googling and Slic3r/PS documentation has thus far not answered my questions.

In writing a config.ini/vendor.ini (whatever you want to call it... it's an *.ini file) for my printers, I keep coming up against minor errors which prevent the profile working 100% correctly. If I clone an existing ini profile, the software appears to require that I rewrite every named reference (vendor, filaments, nozzles, '@xyz' etc) to avoid duplication with other vendor profiles. I understand that bit.

So the software loads and I can select my profile, the filaments all load, layer heights seem correct etc... but the 'default_filament_profile' and 'default_print_profile' statements are being ignored. Obviously, I can select the parameters I want from the drop down menus, but why won't those values load by default once I've selected the appropriate printer, then nozzle size when using the Configuration Wizard? Would anyone be able to have a look at my ini file and explain what I've done incorrectly please?

I'd also appreciate some feedback on how I've formatted the layout etc...

Many thanks for any assistance you might offer

arhodiewithsoul/pizzadude

Non-manifold stl files (3 replies)

softfoot — Sun, 11 Jul 2021 20:43:34 -0400

I have found a number of projects that I would like to print from "thingiverse" but "Repetier Host" complains that some of the STL files are non-manifold and when I try to slice with Slic3r the preview has holes and gaps in it.

I have tried repairing with Slic3r and various online services but often without success :-(

Other people dont seem to have problems printing these files - so why do so many stls have this problem?

Is it that Slic3r is more sensitive to this ? or that something like Cura could handle better ?

What do other people do about these files ??

Any advice very welcome.
Dave

Slic3r console errors (no replies)

agniusm — Tue, 02 Feb 2021 02:21:14 -0500

I have 60 files i am updating time to time and slicing takes a lot of time. I thought to get on the console and try to automate it but i ran into some problems.
My designs are made in Inventor. Its a battery enclosures and those are made up of 6 components. those components then are assembled and exported to stl. i can automate this process in Inventor so it save a lot of time.
Slic3r slices files perfect but when i try to slice them through console it says no layers found. I know there are errors in stl where the parts are stitched, assembled in Inventor but there is no way around it on Inventor.
Why does it slice alright in GUI but not on the console?

Loops in "end" gcode script ?? (no replies)

softfoot — Sat, 30 Jan 2021 13:01:33 -0500

I am rather deaf so I would like to play a sequence of short tones at the end of a print job and have it continue until I hear the tones.

At the moment I have a fairly long sequence of tones encoded and it works a treat but as far as I can see the only way to get a continuous output (without a ridiculously long script) is to specify "p0" which gives a continuous single tone.

Unfortunately, the way my remaining hearing works a single tone becomes "lost". It irritates the hell out of my wife, which I suppose is one solution but a thrown frying pan is to be avoided !! ;-)

Is there a way to have a short sequence of tones and loop over it until I silence it ???

Best Regards,
Dave

difference between settings in layers and perim and advanced (5 replies)

ruggb — Fri, 09 Oct 2020 14:03:51 -0400

Under layers and perimeters, there is a setting for first layer height. default is 0.35mm
Under advanced there is a setting for first layer.
It says this is computer over first layer height and the default is 200%.

If I select a layer height of 0.1mm then I probably would set the first layer height to 0.2mm and not leave it default.
However if first layer is default, then it looks like my first layer will be 0.4mm instead of 0.2mm

Can someone explain how to use these settings?
thanks