Cables & Connections

Cabling

1. Take your laser diode extension cable, laser assembly fan extension cable and air assist extension cable. Use the colored labels affixed to ensure you have the correct cables.
   • Laser diode extension cable (2.5m) → blue tags
   • Laser cooling fan extension cable (2.5m) → red tags
   • Air assist extension cable (2.5m) → yellow tags
   • PWM signal extension cable (0.6m) → purple tags
2. Use a flat head screw driver, Allen key or LongMill wrench to unclip the tabs from on your LongMill Benchtop CNC drag chains. Click Here For LongMill Assembly Reminder 
3. Safely route cables 1 (blue), 2 (red), and 3 (yellow) through the drag chain to avoid them interfering the CNC’s movement and close your drag chain tabs
4.  Alternatively you can zip tie cables 1 (blue), 2 (red), and 3 (yellow) to the outside of the drag chains 

Connections 

7W Laser Diode Assembly → 5A Constant Current Driver

1. 1. This is how your Laser Diode will receive power from your driver.
   2. Use the laser diode extension cable – blue tags.
   3. Confirm that the red and black wires match on both the male and female side of the connector before firmly pressing the male connector  from the extension cable into the female connector from the laser diode assembly.
   4. Plug the male connector from the other end of the extension cable into the driver laser power output female connector.

Connecting laser diode to extension cable

Connecting laser diode to driver

Laser Cooling Fan → 5A Constant Current Driver

1. 1. This is how your laser cooling fan will receive power from your driver.
   2. Use the laser cooling fan extension cable – red tags.
   3. Confirm that the red and black wires match on both the male and female side of the connector before firmly pressing the male connector from the extension cable into the female connector from the laser cooling fan.
   4. Plug the male connector from the other end of the extension cable into the driver laser cooling fan power output female connector.

Connecting laser cooling fan to extension cable 

Connecting laser cooling fan to driver

Air Assist → 5A Constant Current Driver

1. 1. The use of an air assist is not needed to fully operate your 7W LaserBeam System. We do provide you the option to include a 12V air assist fan assembly as an accessory. This is how the air assist will receive power from your driver.
   2. Use the air assist extension cable – yellow tags.
   3. Confirm that the red and black wires match on both the male and female side of the connector before firmly pressing the male connector from the extension cable into the  female connector from your air assist.
   4. Plug the male connector from the other end of the extension cable into the driver 12V accessory power output female connector.

Connecting air assist input to extension cable

Connecting air assist input to driver

PWM Signal on 5A Constant Current Driver → LongMill Benchtop CNC Controller PWM Output 

1. 1. This is how you control your laser and laser driver assembly with a 5V PWM signal that is sent from the LongMill Benchtop CNC controller and received by the laser driver.
   2. The driver uses this PWM signal to control when the laser is ON and OFF and at intensity and frequency when the driver is in PWM Mode. 
   3. Use the PWM signal cable – purple tags.
   4. Confirm that the red wire aligns with the SpinPWM label on your LongMill Benchtop CNC Controller and the black wire aligns with the GND label before firmly pressing the male connector from the cable into the female connector on your LongMill Benchtop CNC controller.
   5. Plug the male connector from the other end of the  cable into the drivers PWM signal Input female connector.

Connecting PWM signal input to LongMill controller

Connecting PWM signal input to driver