48" LED Array - Up and Running...Mostly

Ron99 · #1 03-17-2010, 05:10 AM

Some progress. Here are the two aluminum angles mounted in the fixture:

And then I lay the three heatsinks on top to figure out spacing and where to drill my mounting holes:

Now because of the shape of the housing the aluminum angle had to be mounted pretty much flush with the bottom of the housing but I need clearance for the LEDs and optics so the heatsinks have to be raised a bit. So I cut some nylon spacers to place between the heatsinks and the angle.

And here it is all assembled:

So now that the mechanical engineering part is more or less sorted its on to the electrical engineering

StirCrazy · #2 03-17-2010, 12:58 PM

what are the milled squars for? is that the bottom or the top?

Steve

Ron99 · #3 03-17-2010, 02:43 PM

Quote:

Originally Posted by StirCrazy

what are the milled squars for? is that the bottom or the top?

Steve

The heatsinks came like that. Probably held some components or something. They are only 1/16 of an inch deep so a few emitters will sit 1/16 inch higher than the rest. I figured 1/16 inch won't make an appreciable difference in PAR and coverage etc. and given the cost savings of the heatsinks vs. something pristine I could live with it. It won't be visible inside the housing anyhow.

Ron99 · #4 03-19-2010, 04:12 AM

Heatsinks cleaned and polished a bit and 80 emitters mounted:

next up, wiring...

pangp · #5 03-19-2010, 05:20 AM

tagging along..

looking good so far!