DIY Quantum or NextLight Mini alternative
- Thread starter caretak3r
- Start date
Abiqua
Well-Known Member
sweet....aluminum baking sheet from the internet? [ghetto snow sled...its been a long winter 
]
I wanted to ask you about the ND magnets and how your builds were doing with them. I am guessing that they work fine and don't interfere with power delivery? Which was my greatest worry....I have hundreds and wanted to see your results
Awesome build.
]I wanted to ask you about the ND magnets and how your builds were doing with them. I am guessing that they work fine and don't interfere with power delivery? Which was my greatest worry....I have hundreds and wanted to see your results
Awesome build.
caretak3r
Well-Known Member
I haven't had any issues with power delivery. I intended to put thermal paste under these but was in a hurry to get it together to do some testing. I had to use the kapton tape because these strips didn't have enough room to place a magnet fully on any individual strip. Pretty impressed with this one so far.sweet....aluminum baking sheet from the internet? [ghetto snow sled...its been a long winter
I wanted to ask you about the ND magnets and how your builds were doing with them. I am guessing that they work fine and don't interfere with power delivery? Which was my greatest worry....I have hundreds and wanted to see your results
Awesome build.
superdang9000
Member
Excellent build! I'm putting together something very similar this weekend, just need to cobble together a frame. I thought aluminum wasn't magnetic tho?
sixstring2112
Well-Known Member
so what are those magnets for just spacers,or is there something more going on with them ?
superdang9000
Member
Aha! Cool beans!magnets on both sides (because you are right, aluminum is NOT magnetic)
Abiqua
Well-Known Member
So what did you spend @caretak3r ? I believe you mentioned something over in the samsung strip thread around $200 or less?
The strips are also nice since heatsinks are possibly at the grocery store, instead of avaiable from 2 vendors, or china and always seemingly sold out too....
The just the took the air out of cobs for me in the last 12 months. heatsink costs are just ridiculous for pins and fins, compared to the strips and sinking needed to adequetaly cool them
The strips are also nice since heatsinks are possibly at the grocery store, instead of avaiable from 2 vendors, or china and always seemingly sold out too....
The just the took the air out of cobs for me in the last 12 months. heatsink costs are just ridiculous for pins and fins, compared to the strips and sinking needed to adequetaly cool them
caretak3r
Well-Known Member
I bought 26 of the strips to get the cost down to $3.68 per strip. There's 20 in this fixture so that's about $74. I got the driver from BG Micro before COBKITS bought their whole supply (it was only about $25 or 27). $15 for the aluminum, and less than $10 for the magnets. $125 or so? plus the hanging hardware for a few bucks.
shadow_moose
Well-Known Member
Could light a 4x2 with two of these. Nice!
BuddyColas
Well-Known Member
Are you running them at the test current of 350ma? Any temp readings?
caretak3r
Well-Known Member
running them at about 300ma right now. Will get some temp readings when I get a chance.
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superdang9000
Member
Do you happen to have a wiring diagram or a wider shot of the wiring? I'm having a hard time visualizing it for some reason. I'm assuming you're running parallel based on the driver but something looks fucky to me.
caretak3r
Well-Known Member
The driver is 48v, the strips are 24v, so each pair of strips is in series (24x2 = 4
. Then each set of 2 pairs is in parallel. Series and parallel wiring is on the background side of the pic. In the foreground I'm running each of those sets of wires to the driver. I could theoretically only have a single set of wires running to the driver, but I don't know what amperage the traces on the PCB can take, so I only ran 2X nominal worth of amperage.