You can resize X and Y axis, but Z must remain unchanged
Swap Instructions (if you do not have AMS):
Start with black PLA Basic | Bambu Lab EU
At layer #6 (1.00mm) swap to Red PLA Basic Filament with spool / 1kg / Gray (10103) | Bambu Lab EU
At layer #25 (2.28mm) swap to Gray PLA Basic Filament with spool / 1kg / Orange (10300) | Bambu Lab EU
At layer #28 (2.84mm) swap to White PLA Basic Filament with spool / 1kg / Black (10101) | Bambu Lab EU
At layer #30 (4.84mm) swap to Gray PLA Basic Filament with spool / 1kg / Orange (10300) | Bambu Lab EU
At layer #31 (5.00mm) swap to White PLA Basic Filament with spool / 1kg / Black (10101) | Bambu Lab EU