The Bambu Lab P1/X1 XY Belt is the OEM replacement drive belt for the CoreXY motion system on P1 and X1 series printers. In a CoreXY printer, the XY belts work together to translate motor steps into precise horizontal toolhead movement across both the X and Y axes simultaneously. Accurate belt tension and belt condition are critical for dimensional accuracy, surface quality, and the ability to run high-speed print profiles without artifacts.

Over time, XY belts can stretch, develop micro-cracks, or lose tooth profile precision, resulting in ringing artefacts, layer shifts, or reduced accuracy. Replacing a worn belt with this OEM part restores correct tension, tooth engagement, and positioning accuracy for the full speed range of the printer.

Key features

• OEM CoreXY XY drive belt for P1 and X1 series printers, matched to factory belt width, pitch, and length.
• Restores accurate toolhead positioning and eliminates ringing or layer shift caused by belt wear.
• Correct tooth profile ensures full motor step-to-movement transfer without slip at high acceleration.
• Enables the high-speed print profiles that Bambu Lab P1 and X1 printers are designed for.
• Also available: Z Belt (article 210000005870) for the vertical axis drive system.

Compatible with: Bambu Lab P1P, P1S, X1, X1C, X1E