Auto Focus Sensor – Short Arm Green Micro-Switch

LASER PARTS | AUTOFOCUS & SENSORS

Auto Focus Sensor – Short Arm Green Micro-Switch

This Auto Focus Sensor is a replacement mechanical micro-switch used in compatible Rabbit Laser QX Series CO2 laser engraving and cutting machines. It provides a position-detection signal used by the machine's automatic focusing system.

The switch features a distinctive green housing and a straight metal actuator arm. When the arm is pressed by a compatible mechanical component, the internal electrical contacts change state, allowing the machine controller to detect the switch activation.

In a properly configured autofocus system, this signal helps the controller identify the required sensing position during the automatic focusing process.

The compact body includes two mounting holes and three electrical blade terminals for connection to the machine's existing wiring.

Important: This component is a mechanical position switch, not a complete autofocus assembly. It must be installed and connected to a compatible focusing mechanism and control system.

Key Features

• Mechanical Position Detection: Provides an electrical switching signal when the actuator is pressed.
• Short Metal Actuator: Straight lever design for compatible mechanical contact applications.
• Green Housing: Distinctive green switch body for easy visual identification.
• Three Electrical Terminals: Blade-style connections for integration with compatible wiring.
• Compact Construction: Small housing suitable for compatible laser head and autofocus mechanisms.
• Two-Hole Mounting: Integrated mounting holes for securing the switch to an appropriate bracket.
• Autofocus Application: Designed for position sensing in compatible laser machine focusing systems.
• Replacement Component: Suitable for replacing an existing micro-switch with matching mechanical and electrical specifications.

Product Specifications

Product Type	Mechanical Micro-Switch
Application	Laser Machine Autofocus Position Detection
Actuator Style	Short Straight Metal Lever
Actuation Method	Mechanical Contact
Electrical Connections	3 Blade Terminals
Housing Color	Green
Mounting Style	Two-Hole Mounting
Sensor Type	Contact-Actuated Position Switch
Machine Application	Compatible Rabbit Laser QX Series Machines
Electrical Rating	Verify Markings on Existing Switch
Rabbit Laser USA SKU	105

How the Autofocus Micro-Switch Works

Automatic focusing systems use position information to help establish the proper distance between the laser focusing lens and the material being processed.

In compatible mechanical autofocus arrangements, a moving component activates the micro-switch during the focusing process.

When the metal lever is pressed, the switch's internal electrical contacts change state. This produces a signal that the machine controller can use as part of its programmed focusing sequence.

The switch itself does not measure the laser's focal distance or independently adjust the worktable. Those functions depend on the machine's mechanical design, controller settings, and autofocus configuration.

A worn, damaged, incorrectly positioned, or electrically faulty switch may prevent the autofocus system from detecting the expected contact position.

Compatibility

This micro-switch is intended for compatible Rabbit Laser QX Series machines equipped with a matching mechanical autofocus position sensor.

Before ordering, compare the replacement switch with your existing component:

• Housing shape and overall dimensions
• Actuator arm length and orientation
• Mounting hole spacing and positioning
• Electrical terminal count and layout
• Normally open and normally closed contact requirements
• Voltage and current ratings
• Required actuation force and travel
• Clearance within the autofocus mechanism

Important: Similar-looking micro-switches may have different electrical ratings, switching characteristics, and actuator dimensions. Matching the housing color or terminal count alone does not guarantee compatibility.

This switch should not be assumed interchangeable with main-door safety switches, roller-lever switches, or other autofocus sensors without verifying the original specifications.

Installation & Safety

• Turn off and disconnect electrical power to the laser machine before servicing the autofocus system.
• Document the original switch position and electrical connections before removing the existing component.
• Verify that the replacement matches the original switch's mounting and electrical requirements.
• Secure the switch to its original mounting location using appropriate hardware.
• Confirm that the metal actuator arm moves freely without binding.
• Position the switch according to the machine's original autofocus mechanism and adjustment requirements.
• Connect the terminals according to the machine's wiring diagram.
• Check that no wires or moving components interfere with the switch during operation.
• Before running an automatic focusing cycle, verify the switch's electrical operation and ensure the moving mechanism cannot strike the laser head or worktable.
• Test the completed autofocus system according to the machine manufacturer's instructions before returning it to normal operation.

Safety Note: Incorrect installation or adjustment of an autofocus position switch can cause unexpected movement or failure to detect the intended position. Do not operate an improperly functioning autofocus system.

If the replacement switch does not resolve the issue, inspect the associated wiring, electrical connections, actuator alignment, controller configuration, and other autofocus components before continuing operation.