PRUSA ORIGINAL PRUSA XL TOOL CHANGER Error

M3x30mm Dock Fixing Bolt

The tool dock is secured to the rear extrusion via a single M3x30 bolt housed within the cable router. Vibrations from repeated tool changes and thermal cycling cause this fastener to lose clamping force, leading to physical dock displacement that exceeds the firmware's calibration tolerance. Tightening this fastener restores the structural rigidity required for the toolchanger's high-precision XY coordinates.

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Magnalube-G PTFE Grease

The kinematic coupling utilizes three steel pins that must seat into grooves on the toolhead. If these pins are dry or contaminated, the resulting friction increases the motor load during pickup and docking sequences. This excess load is interpreted by the Buddy board as a 'Crash Detection' or 'Toolchanger Problem,' preventing successful alignment or homing.

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Toolchanger Cheese Board

This electromechanical PCB acts as the interface between the tool and the gantry, housing the positioning pins and electrical contacts. Structural failure of the hexagonal positioning pins or electrical signal noise in the board's circuit can cause the firmware to reject the tool's docked state, resulting in a persistent alignment error despite correct mechanical positioning.

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