Thanks guys for your ideas. I think I'll put it all together with RGY and eventually 100mW 405nm which I have just waiting for some use. Then I'll add the argon without blanking just to check if that is a good idea at all (I mean 488 as blue). Then I'll think what to do with it further.
I just got aluminum base for my projector, it's 40x45cm. I'm planning to place all stuff as shown in the picture (there's no 405nm module yet). There are two dichros and two HR mirrors in kinematic mounts, one more HR mirror will be needed to adjust blue beam direction. Mirror in the left bottom corner is to move the beam to higher level because my galvo mount is pretty high. I'm also thinking of adding a safety shutter somwhere there.
Any comments or ideas?
What do you mean? Which diodes?