CNC Laser housing V2.2 for 12 mm diameter laser Diode

2000mW Diode is working now - added a picture of an engraving on a aluminum plate. Perfect results with automatially on/off triggering directly via Gcode - I'm using "Simply Cam 2" a really simple but very useful 2D CAM Tool.
All running with WINPC-NC USB on my 3 Axis CNC machine
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ordered a 2000 mW 445 Diode and need a improved cooling for the diode.
used a heatsink for LED and redesigned my first version to place a 30mm fan in the housing blowing the air directely through