CXB 3590 built a la greengenes in progress, except new way around tapping

GreenSanta

Well-Known Member
Hey everyone, its happening now, I started putting the pieces together. I couldnt find the proper tap kit at home depot so I had to be a bit creative, I think I came up with a new way of getting the cob holders onto the heatsinks, and this is NOT the right way to do it but it works, in case some other DIYers are interested.

I am building 2 x 200watts bars a la greengenes,

8 COB pcs CXB3590 3500K CD 36V CXB3590-0000-000N0HCD35G
8 ideal holder pcs 50-2303CR
2 driver HLG-185H-C1400A
2 Heatsinks from heatsinksusa, 5.88''x 36''

So first of all, I was off to a bad start, I tried drilling a hole and use a self tapping screw, but the aluminum is too thick at the base and I kept breaking the metal screws in the hole...
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I had to put the project aside overnight lol... this morning I started again with a new approach, I drilled my holes with a 3/32 bit, wiggled it just a tad bit in the hole and went straight with #4, 1/2'' metal screw, I usually go through 2 or 3 screws (the philips square head gets damaged)) and by the time I get to the fourth one it goes in with a nice thread. After, I remove the screw, wash the heatsink and install the cob. Thanks aluminum for being so soft. Everything went smoothly from then on.
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I used arctic 5, not too sure how much to put on but I think I put just enough, you can see the close up picture how the thermal paste is being pushed out evenly.

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Just to be sure, is it as simple as green wire with green screw, brown wire with golden screw and blue wire with silver screw? I cant really tell the positive from the negative looking from the other side ... I guess I should know this lol.
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So thats it guys, almost done with the first built, I am building it backward to what greengenes did in the video I was in a hurry to install the cobs...
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Im thinking of using 2 fans per bar, as you can see in one of my chinese cheap fixture I have 2 adapter that seems to be running 2 fans each. I plan to reuse those.
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Thats it for now, please comment, I will resume the built tonight and hopefully have the first bar up and running! To be continued! Special to greengenes, growmau5 and the rest of the team.
 
l got the lights going! Took a while and a little trouble shooting I had installed a COB the wrong way in the holder,... the last one I installed... and man does the thermal paste work or what, I couldnt even get the cob off of the heatsink I endup sliding it a half a turn and resinstalling the holder while the cob sat on the heatsink ... anyway, Im gonna install the fans tonight. I think the light will pay for itself really fast, I am stoked now...
 
Yer phellps tip is Not matching up well Bro !!
get a fine #1 I be using #4 & 3/32" as well
I use a harder screw than u do on the Ideal's but my reflector screws are the same as your ( eXcept mine R countersunk) & the screw is soft & easily damaged by the wrong tip
 
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7/64ths bit and a self tapping m3 screw at 8mm long is the easiest way to attach cobs hands down. They press their own threads into the 7/64ths pilot hole like butter.
 
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