If you have an AMS with Bambu Lab, this is a big time saving tip for easy splitting-- Testing a build of this where instead of ironing the lower layers, I turned off ironing and added .1 gap then a .2 layer of "support for PLA" another .1 gap then the next full board layer, repeated. So far I just sliced and saved over 2 hours on total build time with no ironing. It does require the AMS and support for PLA, but I guess something like PETG could be tested as the alternate material if you don't have bambu's support for PLA. I tested simple cylinder rings and it separated very easy with the support material as my filler, have not printed the big file yet. Just putting the idea out there. Basic steps 1. Take the current layers in object editor and space them out to allow .4 gap instead of the .2 gap in there now. 2. Clone your full model over to another plate for editing split it out and delete all but 1 layer to edit 3. take the single layer from a split then change the material to your filler material and scale only Z to .2mm height. name it gap filler or something simple. 4. make 3 more clones of .2mm gap filler layers name them 1-4 (original +3 clones) 5. Move all the gap fillers back to the main plate and center them each to align all parts *note must center each part, not just the full assembly. 6. Assemble/merge 4 spacer layers into the original file 7. you will need to do the math and place each filler at the Z height for the .2mm in the middle of the .4 gaps you made earlier. 8. zoom in and test slice it to make sure your gap layers are perfect inbetween 0 to 6.4 is my Base (z default height in Bambu Studio is 3.2 as it does midpoint of the 6.4 layer thickness) 6.4-6.5 is .1 of space 6.5-6.7 is my .2 of gap filler (z height in Bambu Studio is 6.6 this starts at 6.5 height--midpoint height) 6.7 to 6.8 is .1 of space 6.8 starts Layer 2 (Z height in Bambu Studio is 10.0--this midpoint starts this layer at 6.8) etc same pattern

Now you need the core tiles.