I've got the blower fan mounted on the air assist mounting from Thingiverse (https://www.thingiverse.com/thing:2545095 - which I need to modify slightly) and the fan is connected to the top of the laser module. It is quite effective and there isn't any smoke damage on card or wood like before.
If you want to connect the blower fan to the laser module as I mentioned in a previous post, make sure you take some ESD precautions when handling the module. The four screws are self tapping and go through the laser mounted fan to the metal heatsink. You don't want to undo these screws more than once, otherwise the threads in the heatsink will foul.
The cable to the blower fan can be desoldered at the terminals on the fan body, cut down and resoldered, to shorten it.