A new build project: 7W RGB (photo heavy)

[300EVIL]

Very nice work!

[megaton]

Thanks for sharing Simon.

Bit of inspiration. I think is a lot for me.
I wish I can find those materials here.

Cheers,
Ed

[MechEng3]

Very nice....output power at apeture? Beam specs?

[Badpip]

Hello,

i have the same MQ Collimator.

Specs: 1,5mm x 1,5mm and 0,5 mrad.

Greetings from Austria

Nice - where do you buy them?

/Thomas

[Showlaser.dk]

Hi guys

Thanks for all the kind words

I am getting about 7W to the galvos, if i run everything at full power.. the beam is about 4mm in diameter.. i am loosing a bit of the red, because it is about 4x5mm and that is a little too much for the galvos.

I have put beam correction on the blue - i just realized that the pics are taken before that was mounted, but you can see the 4 tapped holes in front of the blue output, that now holds an aluminum cube, that has the optics on top..

The specs out of the red collimators is approx 1.2 x 2.4 mm with 0.8mrad.

as mentioned this is a no nonsense approach to the build. That is also why there is no temperature control on the diodes, they are only heatsinked. I am also planning to screw the divergence up a bit because i want a fatter beam at the point where it can have contact with the audience, to be able to put some more power out..

br. Simon

[beamann]

superb build. I am inspired, Give more details, need more input!

[kl79]

Very nice build !

For the red, have you plan to replace some diodes with some 642nm ? (and tec them too) It will be more brighter I think.

[dave]

Oohhh, CNI OEM-N green. Nice little lasers eh. We have a few waiting to go into 5w RGB's.. Just need the time.

PS, I didnt find Marco's lenses to be that great. Currently using a lens that gives me a much smaller nearfield spot at 1mrad..

[White-Light]

I am also planning to screw the divergence up a bit because i want a fatter beam at the point where it can have contact with the audience, to be able to put some more power out..

br. Simon

Nice build.

However, rather than diverging the beams at source, wouldn't it be easier just to mount a lens inside the projector near the scanners, that way all the colours get diverged in one hit and its easily reversible without hours of tuning.

Also, how big is this boat? 7 Watts seems a lot. The owners really need to take MPE measurements.

[sbk]

If you use the self tappers it is not too bad, but yea corner blocks and the junctions you can get without needing to drill gets expensive.

Who are you using as a source?

Regards, Dan.

You mean where I got my profiles? From a small factory near my home in CH (New Ingenia). I think I paid a bit less than 100$ for all the threaded junctions and only 4x 500mm of profiles.