Bambu Studio - over 2Mb files - X1C printing

I am having a heck of a time since recent updates with processing files in Bambu Studio. I am working with a company file that is the equivalent of a 12 story building without windows…lots of details. However, I cannot share it because I do not own it. The file was originally created in Navisworks and then translated to a colorized .obj file for me to print within a 10in x 10in space that the X1C offers as a single whole unit with PVA supports.

1-Is there a file size limit? I am working with .obj files that are up to 10 Mb in size. Bambu Studio seems to be unable to work with anything over 2 Mb.

2-Does the repair function of a file (correcting non-manifold edges) require an internet connection? It takes so long and I don’t see my resources maxing out. I have worked with both Dell and NVIDIA on the workstations settings but I am not maxing out the resources.

3- Is Bambu Studio cloud based processing? I bought a dedicated workstation and discrete video card to see if I could speed up processes and it does not as these processes are mainly CPU intensive. In monitoring multiple workstations, each trying to solve the settings problem, I notice that none of my resource max out. These files I work with take days to repair and in one test I broke the network connection and Bambu Studio froze and then crashed at some later time on one workstation. At one point, I loaded a large file into Bambu Studio and then attempted to save the project and the application would fail. When I reduced the file size and then tried it…it worked for all files smaller than 2Mb.

4-Has anyone came up with a slicer that is not cloud based? I looked it up and it seems that most are in this manner. I need to figure a way for the slicer to speed up so I can process these large files quicker. Or, I need to parse them in Fusion/Blender before I send them to the slicer so the files are small enough to manage. Fusion is another problem because of it’s cloud based issues but it also has an offline mode.

I am not sure about questions 2-4, but for question number 1, I have printed step files that are over 30Mb without issue. Now a step file is not the same as an STL, so I don’t know about the limitations. But, I would think the limitation would be the computer memory and processing power to process the file?

The printer would have a limited memory too. Does anyone know what that limit is? Limit to the size of the G-code that can be sent?

My dedicated workstation is a Dell Precision 3460, Intel i9 vPro (14900 24core 32logical), 64G RAM (DDR5 5200MT/s ECC), a discrete graphics card (Nvidia RTX 4000 SFF ADA), and the drives are Samsung PM9A1a (7GB/s read 5.1 GB/s write, each 2TB PCIe NVMe Gen 4 Class 40).

Because I am not seeing the resources max out… I am sure it is a matter of dialing in the software for Nvidia and Windows plus Dell has their own optimizer for workstations but I can’t find it. However, since the latest software update with Bambu…something is really broken because it is happening on all three of my computers.

Studio slices entirely on your computer, not in the Bambu cloud.

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Although I am not much of an IT expert, I expect that your system or installation has some inefficiencies.

I am currently printing a 55MB gcode plate from a 19 plate Studio file. File repair and Slicing do take some time, but nothing excessive.
The only item I see occurs when sending the print code through the cloud as the progress for the printer download shows 100% while still in file processing.

As for other slicers, Orca is quite neat, popular and/but very similar to Studio.

I think the impact of file size heavily depends on the file type.
E.g. STL with 100 MB might work flawlessly while a 5MB OBJ might cause trouble.
Maybe for a test you can export it as STL instead of OBJ? i think BambuStudio anyway is doing that internally.
At which step does it fail? Is it already at import or later at slicing?

Thanks i tried a couple of runs with the network off and the software does work even offline.
My mistake was I had my file on a network drive… when i cut the network I thought the incorrect thing was happening. I moved the files to my local drive and now the network status has no effect.

However, I still have my issue with not being able to repair and slice. I opened a ticket with BBL.

Studio uses a windows process , so it should not need an internet connection
complexity may be the cause of the timing issue

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Thanks, that is what I needed to hear. My file size should not be an issue. I cannot even reposition the view without using shortcut keys and it takes minutes. It is happening on multiple different setups all with the latest update of Bambu Studio. I see no real processor utilization and nothing is maxing out but the progress bar doesn’t move for days when repairing and then crashes.

I opened a ticket with BBL and uploaded my logs.

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Often when opening in Bambu Labs, I try to save the project and it fails because the file size is like 100Mb and cannot be opened. I have tried immediately exporting to STL and that works. When I open the STL in BB Studio, I cannot move it around and my attempt to repair the non-manifold edges takes days and ultimately crashes. I tried splitting the model immediately and it takes hours for me to get the model to comply. Then i tried taking the smaller chunk (after saving) and repairing it and again it takes days.

I opened a ticket with support and included all my logs. Maybe they have an answer with the additional data I had to upload (logs, source files, etc.)

After import, can you save the project as 3mf file and tell us the file size? That makes it comparable to the complexity if projects from other users.

In the Network tab on the printer, it says WLAN(Only for 2.4 G). Can’t 5 G bandwidth be used? I couldnt understand it. Does it show where it is connected? What is this expression?