Ugh. So with Fusion 360 + Bambu Studio, which format you use can completely fuck up how your parts print, despite looking identical at first.

If you have two separate bodies in your Fusion 360 deign, and they have faces that touch, if you export this to Bambu Studio as an STL, Bambu Studio gets one shape, and prints one shape.

But if you use 3MF (which is Bambu Studio's native format), Bambu Studio considers them two separate shapes being printed on the same build plate

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