A quick bench test, just check it all works OK now that it has been assembled up.
Here, the laser was fired for a 1 second burst (pressing the trigger then camera shutter almost simultaneously) at a setting of 20.5% PWM which, according to the Synrad power graph is approx. 25% of the lasers output power. It makes an instant and satisfying 'pop' as the cardboard ignites.
This is the beam straight out of the laser (approx. 6 mm diameter) without any lens, when it has been focussed to a point the size of a pin prick (0.04 mm) it should be quite awesome.
Tweakie.