3D Printer, CNC or Creality Falcon 2 Laser Pointer

This is a universal Laser pointer very simple to make. Use supports. All that is needed it a soldering iron as CR2032 Battey holder and a 3V 650nm 5mW Adjustable Laser Dot Diode Module Red Copper Head Laser 4.5cm Lead and a CR2032 Button Coin Cell Battery Socket Holder Case Cover ON-OFF Switch,
Just insert the laser head, solder the switch wires to laser corresponding wires