John the X & Y axis are the same size belts & gearing, the Z axis is direct via a screw but I need to remove a cover to see if it's a ballscrew or trapezoidal.

Ten turns of the motor moved the gantry 3 inches for both X & Y axis, ten turns on the Z axis moved it down 2 inches.

Measurements were taken using a ruler so may not be 100% accurate.

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