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  • The Plug Track functions are experimental and still being developed. Some of the earlier pages of this topic are now out-of-date.

    For an updated overview of this project see this topic.   For some practical modelling aspects of using Plug Track see Building 3D Track.

    The assumption is that you have your own machines on which to experiment, or helpful friends with machines. Please do not send Templot files to commercial laser cutting or 3D printing firms while this project is still experimental, because the results are unpredictable and possibly wasteful.

    Some pages of this and other topics include contributions from members who are creating and posting their own CAD designs for 3D printing and laser-cutting. Do not confuse them with Templot's own exported CAD files. All files derived from Templot are © Martin Wynne.
  • The Plug Track functions are experimental and still being developed.

    For an updated overview of this project see this topic.   For some practical modelling aspects of using Plug Track see Building 3D Track.

    The assumption is that you have your own machines on which to experiment, or helpful friends with machines. Please do not send Templot files to commercial laser cutting or 3D printing firms while this project is still experimental, because the results are unpredictable and possibly wasteful.

    Some pages of this and other topics include contributions from members who are creating and posting their own CAD designs for 3D printing and laser-cutting. Do not confuse them with Templot's own exported CAD files. All files derived from Templot are © Martin Wynne.

Problems with plug track STL files in Bambu slicer

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Vistisen

Member
Location
Denmark
I have discovered a problem with the dropper-wire retaining ridge and the Bambu slicers algorithm. I created my test stretch of straight track. The STL file looks fine in Builder3d.

Screenshot 2024-10-20 143526.png

But when I import it into Bambu studio I get a warning message

Screenshot 2024-10-20 143650.png


When slicing I can see that the ridge is floating when using the default settings:

Screenshot 2024-10-20 143715.png


If I change the wall generator option to 'Arachne' rather than 'Classic' I still get the warning message, but the ridge now seems to be attached.

Screenshot 2024-10-20 143823.png


The error seems to be in the sclicer not Templot as the STL file is fine. But I wonder whether you really need dropper wire retaining ridge on both sides of every timber. It costs time in printing. What about pacing them evey x timers on just the one side?
 
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My models do seem to be better in the Bambu slicer without the dropper wire retainers on.

I do however seem to get the odd missing wall around the chairs. I can't seem to find 3D Builder so am using the Bambu slicer to fix the mesh.

1729720292140.png
 
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Hi Mike,
I can't speak to Bambu slicer because I am not awere how this works. However what your explaining does seem to quite closely correlate to either a non fixed or partly fixed STL file. It is know that Templot outputted STL files do need to be fixed before trying to print.

It does sound as though the slicer is not quite correctly fixing the file.
If its not too big you could trying fixing it at https://www.formware.co/onlinestlrepair this is an online fixing website. and they see if there is any improvement.
cheers
Phil,
 
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I have tried the online mesh fixing tool and getting same results.

I'm using windows 11
 

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  • doubletestnodropper.stl
    4 MB · Views: 36
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My models do seem to be better in the Bambu slicer without the dropper wire retainers on.

I do however seem to get the odd missing wall around the chairs. I can't seem to find 3D Builder so am using the Bambu slicer to fix the mesh.

View attachment 12293

Mike

I had similar anomalies using 3D Builder/Cura. From memories its an issue with partial templates.

May be a duplicated partial Template or one not saved, certainly with Cura when red comes on the diagram its showing an issue with the print file
 
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Hi Mike.
According to 3D builder as you can see it thinks this file does need fixing.
the attached is the your file after preforming a fix using 3D builder.
There does not seem to be any duplication looking at the fixed file. however if it still will not work then that is the most logical issue
cheers
Phil,

Mike freeman.jpg


T
 

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  • doubletestnodropper.stl
    2.1 MB · Views: 40
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Thanks for that. 3D builder has fixed it.

It's a shame I can't get that to work. I've managed to download and install it manually and it opens files fine. When it comes to repairing them though it just comes up with an error about not connecting to the internet.
 
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.
Do we yet have a custom profile for plug track on the Bambu printers?

Based on my experience with other printers it is unlikely that any of the standard profiles supplied with the printer will give the best results. Unfortunately without a Bambu printer here I can't do any testing to find out.

Anyone? For best results with the default plug track dimensions I suggest a layer height of 0.12mm. Ironing of the timber tops is very desirable, but with a low flow of about 3%. I suggest an ironing inset of 0.6mm to avoid rough top corners. For the thin socket walls alongside undercut clip-fit sockets in plain track sleepers, I suggest increasing the thin-wall flow compensation.

For the Neptune 4 printer my suggested Cura profile for 4mm/ft timbering bricks is at:

https://85a.uk/templot/club/index.php?resources/31

If you have a suitable profile for the Bambu, please post it there. Thanks.

Is it possible to use the Cura slicer with the Bambu printers?

Martin.
 
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I'm playing with my settings at the moment. I've just added the settings you mention and will see how it comes out.#

Bambu comes with it's own slicing software which people use rather than Cura etc. It's probably possible to use Cura but you wouldn't want to as the Bambu slicer is so good and allows remote control and live viewing etc.
 
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Here are the presets that I have used up until now. I have printer three samples including a whole turnout, which being black plastic is a bit hard to see, so I have placed it on a screen so that the holes are visible. This print took about 8 hours. I used a Kingroon generic PVA filament: https://kingroon.com/collections/3d-printer-filament


tim_image.jpg
 

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  • Bambu Lab P1S 0.4 nozzle.zip
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@Vistisen

Hi Tim,

Thanks for posting your files. Unfortunately the Bambu .bbscfg config file is a binary file, and I have no means of opening it.

8 hours seems a very long print time -- on the Neptune 4 that print would take about 2 - 3 hours.

Generic PLA may be ok for the timbering bricks, but generally we prefer toughened PLA-Plus -- which is definitely needed for printing the filing jigs.

cheers,

Martin.
 
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Hi Martin.

I think the long print time may be due to two things. I had ironing enabled on all surfaces and the setting for print speed for this is quite a bit slower. There are a lot of surfaces on a whole turnout. I have also reduced the printer main speed slightly, as on my first attempt I have noticed some thin strands between some of the sleepers. This turnout is just about the maximum size that could fit the plate= 25 cm by 25cm. I'm not sure what layer height you use. but the print was made with 0.08 mm layers. I don't think I can export the settings as a readable file. But here are a series of screen shots for all the tabs on the print setting
 

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