Coil Tattoo Liner Machine Operation and Debugging Guide Product overview Coil tattoo liner machine designed for clear, precise line work. Drives the needle in speed reciprocating movement using coil electromagnetic action. Compatible with a tattoo power supply that provides 3 to 20 V DC and standard machine plug and foot switch connections. Key benefits Precise line work: tuned for clean, consistent liners and contour lines. Adjustable performance: pressure regulator and fixed adjustment allow fine tuning of stroke and speed for different needle setups. Easy setup and debugging: step by step controls let you reach vibration and stroke quickly. How it works Under a DC voltage of 3 to 20 V, the main coils and contact point generate an instant electromagnetic pull and release. The spring plate reciprocates and drives the needle bar for fast up and down movement, producing the tattooing action. Quick setup and debugging steps 1. Secure the needle tube: hold the needle tube with left hand. Press the bottom of the main base with the index finger and press the needle tube fixing button with the thumb to lock the tube. 2. Power connection: connect the power supply cable to the machine socket and to a compatible power supply. Ensure the supply outputs 3 to 20 V DC. 3. Loosen fixed adjustment: pinch the fixed adjustment button with the right thumb and index finger and set to a relaxed position. 4. Adjust pressure: pinch the pressure regulator with the right thumb and index finger, then press the foot switch with the right foot to power the machine and start operation. 5. Fine tuning: while the machine runs, keep the pressure regulator held until the machine reaches the desired speed and sound. Lightly touch the front end of the magnetic strip with the left thumb, below the needle bar fixing button. The working state is indicated by strong, steady vibration at the touch point. 6. Check stroke: confirm the stroke, defined as the distance between the magnetic strip and the magnetic coil, is at least 2.5 mm. This ensures sufficient needle travel for effective penetration into the epidermis layer and full retraction into the needle tube. 7. Lock settings: when the machine is tuned, release the foot switch to stop the machine, then use the right thumb and index finger to tighten the fixing button to secure adjustments. Important attributes and compatibility Voltage range: operates with 3 to 20 V DC input. Controls: needle tube fixing button, fixed adjustment button, pressure regulator, foot switch input. Function: coildriven liner machine for clear line work and contours. Compatibility: use with standard tattoo power supplies and foot switches that provide the required DC output and connector type. Use scenarios Liner work for tattoo artists creating clear outlines and detailed contours during tattoo sessions. Practice and setup: bench tuning and stroke adjustment before client work to confirm needle travel and machine response. Teaching and demonstrations: show coil machine operation and tuning in a training environment to illustrate how stroke and pressure affect line quality. Work precautions Do not touch the needle to anything other than the skin or appropriate sterile testing media. When applying ink or handling liquids, stop the needle to avoid contact with supply containers. After each use, wipe electrical contacts to remove dirt, sterilize the needle and needle tube, and clean the machine body. Keep magnetic contact points clean to prevent corrosion and maintain reliable performance. What makes this machine stand out Clear liner focus with adjustable mechanical controls for reliable tuning. Direct, simple debugging steps to reach consistent vibration and stroke. Wide voltage compatibility for use with common tattoo power supplies. This description provides practical operation steps, key functions, and safety considerations to help users set up and tune the coil tattoo liner machine for consistent line work.