How to: auto‑split a big multi‑color 3MF into printable tiles?

Hi everyone,

I’m working on a large model that measures 1.11 m × 74 cm.
The model is prepared for multi‑color printing (four different color/material assignments are already set in the file, exported as a 3MF from Bambu Studio).

Because my printer (Bambu P1S) only has a 25 × 25 cm build plate, I need to split this model into tiles — for example a 3 × 5 grid — so I can print each tile separately and assemble them later.
I only know that it is manually possible to set cuts. But in my case it means I would need to set 4 cuts for the length, and 2 cuts for the width. So, 6 cuts in total.

What I’m looking for:

  • A way to split this model automatically or with as few steps as possible
  • While keeping the original multi‑color / multi‑material assignments intact.

My questions:

  1. Are there tools, plugins, or workflows (inside or outside Bambu Studio) that can do this automated tiling while preserving color/material info from the 3MF?
  2. If not, what method would you recommend as the simplest or most reliable? (If manually, I also would like to know if there is an easy way to set those 6 cuts on the right position to get all 15 tiles in the same and equal dimension of 22.3 x 24.4cm.

Any tips, plugins, or software suggestions would be very welcome!
Thanks a lot in advance for your help.

By the way, the object looks like this:



models need to be compatible to use these modifiers

Thnx @Neiljt

I am not sure if I get you right here, excuse me if not.

As my model consists of 5 objects (rock, forest, rivers/lakes, roads and buildings), I need to keep them together in each tile.
So I guess (about definitions) I need to split in parts, and that each of my tiles is a part (including the objects: rock, forest, rivers/lakes, roads and buildings).

Is this what you mean?

im just answering the question,

Thnx @Neiljt for being patient with me. Obviously, you are at a much higher level.
So, I will try to better explain what I try to accomplish.

The function ‘Split to objects’ or ‘Split to parts’ only becomes available, after selecting one of the objects in the model.

  • Split to object: when I did, the single object in my model I selected, splitted-up in over 2,000 objects.
  • Split to part: when I did this, the single object in my model I selected, splitted-up in over 2,000 parts.

I did not expect these two split functions to result in what I need, but I just tried to see what happens. Clearly, it doesn’t split my model into 15 tiles. This is what I look for:

I might be totally misunderstanding your point, and if so please help me clear it up.

Try splitting then merging then assembling into plate size objects and im at no level better than anyone , but i do like to try and learn

So far, the only way I see is a manual way.
Making 4 cuts in the length and 2 cuts in the width, to get 15 tiles that fit the build plate.

Still I hope someone responds with a way to handle this automatically.