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The Xlaserlab X1 is a compact, portable handheld laser welder designed for precise work on thin metal parts. Before you start welding, it’s important to set up the machine correctly and work safely.   Part 1:  Unpacking list Check Before starting the installation, please check that the accessories in the box are complete. The standard X1 kit should contain the following accessories: X1 Laser Welder accessories list  power plug adapter  safety ground clamp air hose adapter  copper nozzle *4  power cable  protective lens  air hose  specialized laser safety goggles Part 2:  Hardware Installation Steps Step 1: Connect the power supply: Connect the power supply to the x1 laser welder. The power input cord of the X1 unit needs to be connected to a single-phase alternating current (220 VAC), using our 220 V & 16 A plugs; adapter sockets for the USA and Europe are provided for the respective regions. Note: The unit requires 220V AC input, if you are in an area with 110V power supply, use a transformer. Step 2: Connect the protective gas: Insert the air hose with an external diameter of 4 mm into the GAS IN connector at the back of the x1, connect the other end to the gas supply system, and turn on the gas supply. Requirements: Air pressure > 0.2 MPa, air flow > 15 L/min. Tip: If your gas outlet does not match the 4 mm hose, use the air hose adapter that comes in the box to connect your system. If you want to understand how shielding gas affects weld quality, see What Are the Primary Factors Affecting Laser Welding Quality?. This article also explains how the X1 and X1 Pro are designed to deliver clean welds on thin materials.  Step 3: Access Safety Lock: Insert the ground clamp (safety clip) into the LOOP port on the main panel, making sure to clamp it to the workpiece or metal table. If the safety clamp is not properly connected, the safety loop will not close and the X1 will not emit laser. This is a built-in protection feature. Step 4: Power on: Press the x1 power button and turn the red emergency stop switch next to it to the right to release the stop state. Step 5: Remove the key and turn it to the ON position; the key is inside the list pocket. Step 6: Press and hold RESET to release, then adjust to select the proper power, pulse width, and pulse interval. Use the three front-panel knobs to set your welding parameters:  Left knob – Power: Controls the laser welding power. Middle knob – Pulse width: Controls how long each laser pulse lasts. Right knob – Pulse interval: Controls the time between pulses (pulse frequency). Tip: The longer the laser pulse duration, the higher the pulse energy; the shorter the pulse interval, the higher the frequency, the greater the heat. Ensure that the work area is free of flammable and explosive materials before startup and equipped with fire extinguishing equipment. Protective equipment must be worn before operation: laser goggles, anti-temperature gloves, protective clothing, and closed work shoes. Always follow laser safety rules and local regulations when using a Class 4 laser welder. For a deeper safety guide, you can also read Best Practices for Safe Handheld Laser Welding in 2025. FAQs Why won’t the X1 emit laser when everything seems on? The most common reasons:  1：The safety ground clamp is not connected to the workpiece or table.2：The clamp is loose and the circuit loop isn’t complete.3：The emergency stop is still pressed in.4：The key switch is not turned to ON. Check each of these points one by one.       What gas should I use and why does it matter? The X1 welding head uses inert gas for cooling and shielding. Good gas and correct flow help: 1：Protect the melt pool from oxidation2：Improve weld appearance3：Reduce porosity and defects       Related Articles Blogs How to Make Money with a Laser Welding Machine? September 27, 2025 12:01 PM Blogs What Is Laser Welding: A Comprehensive Guide September 26, 2025 2:55 PM Blogs How to Become a Welder: A Complete Career Guide October 17, 2025 2:43 PM