Air assist, where to connect the fan on Eleksmaker


I have an Eleksmaker A3 Pro with the Mana SE v3.2 board.

Servo, motor and 12 v are not in use.
Servo only gives power when laseren is on i think. The fan moves a little bit as the laser turns on and off.
Nothing happened when connecting to the Motor.
And when i connect to 12 v, it is constantly power.

Is there a way to have 12 v to power only when engraving and air assist is enabled?

Or shall I just connect to the 12 v and buy a small on and off switch?

Thanks in advance

You can use a relay, in the same port, to add a additional 12V port.

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