SummaryHere is my laser mount for the MPCNC with a (I Think) 60mm blower fan, the fan is plenty to keep the laser cool and the housing forces air out the bottom to keep the lens clean and clear. also has a adjustable single X target laser to locate where your going to burn. FAN: http://www.amazon.com/gp/product/B00B2ARV22?psc=1&redirect=true&ref_=oh_aui_detailpage_o07_s01 X-Target Laser: http://www.ebay.com/itm/331479316524?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT Here is two Tools to help you with your laser setup: http://www.thingiverse.com/thing:1371591