Finished up with my blue and red build, currently set at 3.5W of 445, 3.5w 637. Beams at 55' red is .5 x .5 inch square, blue is .325 x 1 inch, there is a slight tilt squiggly to it (how about that tech term) I am thinking the correction lens or diodes are slightly tilted. I may stack the 445 like the 637 and try for more of a square beam match. Still deciding. The plate is drilled and ready for (2) green diodes and correction.
Can still get more power out of the build, but set it at 3.5 each with the tec at 19c
I will be adding spatial filters as well to clean up the beams.
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