Reprap Forum - Slic3r

Reprap Forum - Slic3r https://reprap.org/forum/list.php?263 Tue, 14 Jul 2026 09:45:56 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?263,897274,897276#msg-897276 Re: slic3r error https://reprap.org/forum/read.php?263,897274,897276#msg-897276
OK, it has to do with the layer height. I changed to my large model and it did not do it. Then I made the large model layer height the same as my normal and it was there. Why that affects it is truly a mystery to me. I changed my normal from 0.2 and 0.3 to 0.25 and 0.3 and it is gone. It is still a mystery as to why......]]> dustinoff Slic3r Sat, 25 Oct 2025 19:40:30 -0400 https://reprap.org/forum/read.php?263,897274,897275#msg-897275 Re: slic3r error https://reprap.org/forum/read.php?263,897274,897275#msg-897275 VDX Slic3r Sat, 25 Oct 2025 15:48:54 -0400 https://reprap.org/forum/read.php?263,897274,897274#msg-897274 slic3r error https://reprap.org/forum/read.php?263,897274,897274#msg-897274 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]]]> dustinoff Slic3r Sat, 25 Oct 2025 09:12:41 -0400 https://reprap.org/forum/read.php?263,895949,895964#msg-895964 Re: Slic3r Conditional G-Code fail https://reprap.org/forum/read.php?263,895949,895964#msg-895964 VDX Slic3r Mon, 21 Oct 2024 03:04:43 -0400 https://reprap.org/forum/read.php?263,895949,895963#msg-895963 Re: Slic3r Conditional G-Code fail https://reprap.org/forum/read.php?263,895949,895963#msg-895963 scumari Slic3r Mon, 21 Oct 2024 02:09:07 -0400 https://reprap.org/forum/read.php?263,895949,895960#msg-895960 Re: Slic3r Conditional G-Code fail https://reprap.org/forum/read.php?263,895949,895960#msg-895960
Forgot -- is it the correct scope? otherwise you wouldn't get updates ...]]> VDX Slic3r Sun, 20 Oct 2024 16:55:58 -0400 https://reprap.org/forum/read.php?263,895949,895949#msg-895949 Slic3r Conditional G-Code fail https://reprap.org/forum/read.php?263,895949,895949#msg-895949 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]]> scumari Slic3r Sat, 19 Oct 2024 03:21:53 -0400 https://reprap.org/forum/read.php?263,895157,895162#msg-895162 Re: Slic3r crashes on Mac https://reprap.org/forum/read.php?263,895157,895162#msg-895162 github.com]

And it looks like Slic3r has stopped getting updates since Oct 29, 2022

Perhaps its time to leave the dark ages behind and use PrusaSlicer]]> Dust Slic3r Sun, 30 Jun 2024 06:26:49 -0400 https://reprap.org/forum/read.php?263,895157,895157#msg-895157 Slic3r crashes on Mac https://reprap.org/forum/read.php?263,895157,895157#msg-895157 Sonoma, AMD radeon pro 5500

Did download a new one, but same.

Is it not working on Mac any more ?]]> Replace Slic3r Sat, 29 Jun 2024 15:05:24 -0400 https://reprap.org/forum/read.php?263,893172,893172#msg-893172 G-code design in parts https://reprap.org/forum/read.php?263,893172,893172#msg-893172
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!!]]> Tg37 Slic3r Fri, 28 Jul 2023 04:37:59 -0400 https://reprap.org/forum/read.php?263,892963,892963#msg-892963 PrusaSlicer https://reprap.org/forum/read.php?263,892963,892963#msg-892963 Se si come si fa?

grazie
Paride]]> Paride Slic3r Tue, 13 Jun 2023 05:40:52 -0400 https://reprap.org/forum/read.php?263,892275,892296#msg-892296 Re: Z seam fix? https://reprap.org/forum/read.php?263,892275,892296#msg-892296 the_digital_dentist Slic3r Sat, 18 Mar 2023 16:00:39 -0400 https://reprap.org/forum/read.php?263,892275,892275#msg-892275 Z seam fix? https://reprap.org/forum/read.php?263,892275,892275#msg-892275 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]]> hvar89 Slic3r Thu, 16 Mar 2023 15:35:10 -0400 https://reprap.org/forum/read.php?263,891266,891266#msg-891266 slicer 1.3.0 bed temp drop to zero after first layer (behavior change) https://reprap.org/forum/read.php?263,891266,891266#msg-891266 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.]]> gafu Slic3r Tue, 06 Dec 2022 11:40:23 -0500 https://reprap.org/forum/read.php?263,891265,891265#msg-891265 Slic3r 1.3.0 zoom in 3d-view (linux) https://reprap.org/forum/read.php?263,891265,891265#msg-891265
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.]]> gafu Slic3r Tue, 06 Dec 2022 11:34:44 -0500 https://reprap.org/forum/read.php?263,891132,891132#msg-891132 complete individual objects. https://reprap.org/forum/read.php?263,891132,891132#msg-891132
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.]]> rew Slic3r Fri, 25 Nov 2022 05:17:57 -0500 https://reprap.org/forum/read.php?263,890883,890940#msg-890940 Re: Elephant Foot on slic3r ?? https://reprap.org/forum/read.php?263,890883,890940#msg-890940 dc42 Slic3r Thu, 03 Nov 2022 04:17:31 -0400 https://reprap.org/forum/read.php?263,890883,890883#msg-890883 Elephant Foot on slic3r ?? https://reprap.org/forum/read.php?263,890883,890883#msg-890883
Googled a lot about how to fix elephant foot on first layer but could not locate any info.

Any Help?

Thank You
Andreas]]> Vactirio Slic3r Fri, 28 Oct 2022 04:38:41 -0400 https://reprap.org/forum/read.php?263,890494,890601#msg-890601 Re: Automated Batch Slicing as Web App https://reprap.org/forum/read.php?263,890494,890601#msg-890601 Leo_Aguiar Slic3r Sun, 25 Sep 2022 09:21:51 -0400 https://reprap.org/forum/read.php?263,890494,890494#msg-890494 Automated Batch Slicing as Web App https://reprap.org/forum/read.php?263,890494,890494#msg-890494
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!]]> jreinke10 Slic3r Mon, 12 Sep 2022 10:45:02 -0400 https://reprap.org/forum/read.php?263,886850,890481#msg-890481 Re: Greater layer hights 5mm < https://reprap.org/forum/read.php?263,886850,890481#msg-890481 musztard Slic3r Fri, 09 Sep 2022 14:18:46 -0400 https://reprap.org/forum/read.php?263,886850,890430#msg-890430 Re: Greater layer hights 5mm < https://reprap.org/forum/read.php?263,886850,890430#msg-890430 Check out GH plugins like Mamba or Droid because they may come really usefull in your projects.
I sent a message to RoboDK concerning the issue of layer height, so it will be interesting to hear what they say.

I checked out SlicerXL and it is real fun :) Also it is possible to upload your custom shapes into it right now. Could you give me a hint on how to use the cooridantes to come up with gCode?]]> musztard Slic3r Fri, 02 Sep 2022 02:56:38 -0400 https://reprap.org/forum/read.php?263,886850,890425#msg-890425 Re: Greater layer hights 5mm < https://reprap.org/forum/read.php?263,886850,890425#msg-890425

Quote
musztard
Hi,
Thank you for the replay.
I ended up using rhino and grasshopper (to extract curves) since Slic3r couldn't meet my needs in the project. I had failed in my first simulation but luckily i found out what the mistake was.
In a week i will be running another tests with my robot and RoboDK, so i can let you know about the results if anybody will still be interested.

Nice to hear!

Yes, it would be really interesting to hear more about your tests, setup etc!

How convenient have you found the use of rhino+crasshopper? Easy to learn and get along?]]> DorisBoris Slic3r Thu, 01 Sep 2022 15:37:42 -0400 https://reprap.org/forum/read.php?263,886850,890423#msg-890423 Re: Greater layer hights 5mm < https://reprap.org/forum/read.php?263,886850,890423#msg-890423

Quote
VDX
... maybe you can make a "trick" by slicing a part, 10-fold smaller with 0,5mm layer thickness ... then multiply all coordinates by 10x B)-

Thanks for the tip! Might even try this some time. Sound a bit too hustling though :)]]> DorisBoris Slic3r Thu, 01 Sep 2022 15:34:07 -0400 https://reprap.org/forum/read.php?263,886850,890416#msg-890416 Re: Greater layer hights 5mm < https://reprap.org/forum/read.php?263,886850,890416#msg-890416 Thank you for the replay.
I ended up using rhino and grasshopper (to extract curves) since Slic3r couldn't meet my needs in the project. I had failed in my first simulation but luckily i found out what the mistake was.
In a week i will be running another tests with my robot and RoboDK, so i can let you know about the results if anybody will still be interested.]]> musztard Slic3r Thu, 01 Sep 2022 11:02:15 -0400 https://reprap.org/forum/read.php?263,886850,889952#msg-889952 Re: Greater layer hights 5mm < https://reprap.org/forum/read.php?263,886850,889952#msg-889952 VDX Slic3r Fri, 15 Jul 2022 15:56:52 -0400 https://reprap.org/forum/read.php?263,886850,889951#msg-889951 Re: Greater layer hights 5mm < https://reprap.org/forum/read.php?263,886850,889951#msg-889951
I'm a bit surprised to find notification about your reply from my email after quite a while :)

I didn't find any means to use Slic3r for this purpose and I'm also using RoboDK by the way.

I ended up trying slicerxl, which is a free browser based slicer for this purpose. But it is quite limited to really simple shapes.

For more complex shapes I managed somehow with Ultimaker Cura Software.

After some research I found out that almost everybody in this field are using Rhino software with Crasshopper plugin and its parametrical features.

Since that, my project has been stalled so no deeper understanding found. But if you are interested in these slicerxl/ultimaker cura, I could try to remember what I did back there.

Please let me know if you find out something new and it would be interesting to hear about your project as well!]]> DorisBoris Slic3r Fri, 15 Jul 2022 14:11:49 -0400 https://reprap.org/forum/read.php?263,886850,889950#msg-889950 Re: Greater layer hights 5mm < https://reprap.org/forum/read.php?263,886850,889950#msg-889950 The same thing has been bothering me as well. Any solution to that question?
I know that due to achieve greater layer heights you would need to increase the nozzle diameter. However it doesnt seem to be working for me in RoboDK :/]]> musztard Slic3r Fri, 15 Jul 2022 08:01:21 -0400 https://reprap.org/forum/read.php?263,889842,889842#msg-889842 3D and Preview difference https://reprap.org/forum/read.php?263,889842,889842#msg-889842
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]]> rstergar Slic3r Mon, 04 Jul 2022 06:10:49 -0400 https://reprap.org/forum/read.php?263,888871,888871#msg-888871 Disable M116 https://reprap.org/forum/read.php?263,888871,888871#msg-888871 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]]> PROTO_TIPO Slic3r Sun, 27 Mar 2022 02:41:52 -0400