2.5W RBG Build Log

[LaNeK779]

Hey wayne,

just a thought that crossed my mind.
Do you think that the PSU you use is enough? Will 5v/4a for the cni and the reds cut it?

[dnar]

Hey wayne,

just a thought that crossed my mind.
Do you think that the PSU you use is enough? Will 5v/4a for the cni and the reds cut it?

It's tight! The CNI measures 2A max (once the TEC stabalises) and the quad red draws 1.8A max.

To be honest, I am running the quad with just 2 x LD at the moment, as I can't adjust the final beam enough to fit the scanner mirrors. From the mock up test today, 665mW of red is looking fine.

[LaNeK779]

maybe try this one??? http://www.meanwell.com/search/tp-75/tp-75-spec.pdf

[dnar]

Due to a totally blonde moment, I posted the rest of the build in the wrong thread, here: http://www.photonlexicon.com/forums/...145#post201145

[dnar]

Here is a really crappy quality video, taken with VLJ running.

Sorry, it's so long I had to compress the bejesus out of it...

[taggalucci]

Looking good Wayne!

[dave]

Very nice

Quick build once you got going eh!

[dnar]

Very nice

Quick build once you got going eh!

Yeah! Over a year in the collecting phase...

I was going to procrastinate today, but I can't be bothered. I'll do it "tomorrow"...

Looking good Wayne!

Thanks Tony.

[dnar]

Looking good Wayne!

Thanks Tony. .

[dnar]

I designed and built a GM20 driver today for my shutter. I used an opto-isolator on the inhibit input, to keep the 12V ground and interlock signal isolated and keep grounding simple. An N-Channel MOSFET as the switch and diode in parallel with the shutter reduced the bounce substantially.

Pictured below with the GM20 and Dave's new low mass arm.


And yes, the board is exactly the same size as the GM20! Only thinner.