NC-UVDTF60 Origin sensor replacement

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NC-UVDTF60 Origin sensor replacement​ becomes necessary when the carriage fails to locate its home position, the X-axis value does not change during movement, or the control software reports an encoder/origin-related error. On the NC-UVDTF60-PLUS, the origin limit and raster sensor sit on the trolley floor board; a faulty origin sensor causes misalignment, crash risks, and failed prints. Replacing it restores reliable homing and protects the printhead. Always power off and unplug the printer before starting, and use genuine NOCAI parts to keep your warranty valid.

Подготовка

Press the emergency stop switch, then turn off the main power and disconnect the plug. Наденьте антистатические перчатки.. Prepare a clean, well-lit workspace with a camera or phone for reference photos. Gather a precision screwdriver set, пинцеты, изопропиловый спирт, безворсовые салфетки, and the NC-UVDTF60-PLUS user manual.

Удаление старого датчика

Move the carriage to the maintenance position. Remove the carriage board to expose the origin sensor, taking a clear reference photo of its position and cable routing. Cut the cable tie holding the sensor wire. Unscrew the sensor from its bracket, then detach the bracket from the printer frame. Keep the old screws if they are in good condition.

Установка нового датчика

Align the new origin sensor with the bracket holes and tighten the screws. Mount the bracket back onto the printer frame, gently place it, and secure the two fixing screws. Route the cable as shown in your reference photo and fasten it with a new cable tie. Critical: keep a small gap between the sensor window and the encoder strip—never let them touch.

Тестирование и калибровка

Reconnect power and release the emergency stop. Run a homing cycle from the control panel and observe whether the carriage locates home smoothly. Move the carriage left and right to verify the X-axis value updates correctly. Print a test pattern to confirm alignment. Once positioning is stable and accurate, your NC-UVDTF60 Origin sensor replacement​ is complete.

Уход после замены

Monitor the homing behavior during the first production runs. Schedule a reference photo backup for future maintenance. Если ошибки сохраняются, contact your NOCAI dealer for support.