Your correct Corey with the right size heat sink fans shouldn't really be needed, but using an alternative measure and the cost of the equipment and using the "U" or box, I'd be reluctant to run without a fan......I'm just more trying to conserve on weight.....Those heat sinks aren't super light.....Maybe for a smaller build, but for something on my line I'm looking at 4 panels possibly 12"W x 30"L......Weight adds up quick, that's why I was considering the alternative.....
Quote:
Originally Posted by 2Quillshttp:///forum/thread/383238/led-diy-light-build/20#post_3352199
If you go with an appropriate sized heat sink than fans shouldn't necessarily be needed but they could be a benefit to have. I'm thinking your aluminum bars are going to get pretty hot and the leds aren't going to last nearly as long as they could using a heat sink. Heat build up is also going to depend alot on the spacing of the led's. IIRC, I think the heat sinks are typically milled out of a solid chunk of aluminum.
Did you ever check out that build that I posted the link for? I would try to emulate something like that for your tank.
Quote:
Originally Posted by acrylic51http:///forum/thread/383238/led-diy-light-build/40#post_3352676
Your correct Corey with the right size heat sink fans shouldn't really be needed, but using an alternative measure and the cost of the equipment and using the "U" or box, I'd be reluctant to run without a fan......I'm just more trying to conserve on weight.....Those heat sinks aren't super light.....Maybe for a smaller build, but for something on my line I'm looking at 4 panels possibly 12"W x 30"L......Weight adds up quick, that's why I was considering the alternative.....
Understandable, Shawn. I was looking at the new heatsinks on rapidled. They have them in 1" widths now. I'm thinking about using those kind of like that one guy did with the square aluminum tube. Use 6 with 12 leds a piece as an alternative to like a 6 bulb T5 fixture. 3 rows blue, 2 white and one either with some reds or purple or maybe even greens or mix all three, not sure yet.
Thanks Corey!!!! I'll have to check the new heat sinks out at Rapid. I knew you could get that style off of eBay cut to length and wasn't unreasonable as well.
Quote:
Originally Posted by 2Quills http:///forum/thread/383238/led-diy-light-build/40#post_3352762
Quote:
Originally Posted by acrylic51 http:///forum/thread/383238/led-diy-light-build/40#post_3352676
Your correct Corey with the right size heat sink fans shouldn't really be needed, but using an alternative measure and the cost of the equipment and using the "U" or box, I'd be reluctant to run without a fan......I'm just more trying to conserve on weight.....Those heat sinks aren't super light.....Maybe for a smaller build, but for something on my line I'm looking at 4 panels possibly 12"W x 30"L......Weight adds up quick, that's why I was considering the alternative.....
Understandable, Shawn. I was looking at the new heatsinks on rapidled. They have them in 1" widths now. I'm thinking about using those kind of like that one guy did with the square aluminum tube. Use 6 (why 6? I would do 3-4. like RB, CW, Multi color, RB and mess w/ the optics.) with 12 leds(How long are these heatsinks?) a piece as an alternative to like a 6 bulb T5 fixture. 3 rows blue, 2 white and one either with some reds or purple or maybe even greens or mix all three, not sure yet.
6, I would want them as individual strips, that way if one bulb goes out or one of the drivers I wouldn't have to take all of them down to fix. I would use the 48" long ones or twelve 24" long ones. I already have the optics and colors planned for the most part. Each color with be indivudually dimmable/controlable so that I can play with the color temp. Since they can be controlable I don't have to bother with a certain ratio like 2:1 so to speak to get the color temp that I'm after.
Quote:
Originally Posted by 2Quillshttp:///forum/thread/383238/led-diy-light-build/40#post_3352778
6, I would want them as individual strips, that way if one bulb goes out or one of the drivers I wouldn't have to take all of them down to fix. I would use the 48" long ones or twelve 24" long ones. I already have the optics and colors planned for the most part. Each color with be indivudually dimmable/controlable so that I can play with the color temp. Since they can be controlable I don't have to bother with a certain ratio like 2:1 so to speak to get the color temp that I'm after.
Ya, I think we are going to go the way of LEDs on our main tank because MH fixtures have never worked for us. In obtaining them anyway.
We will do 3 rows 48" long.
RB
CW
Multi colors. (fill out spectrum)
All will be on different drivers for individual dimmability.
What transfers heat well? I don't want mass amounts of heats on the connecting beams because I am going to hang it w/ monofiliment fishing line so it looks like it's floating.
I don't think the rivets are totally crucial. They are just in place to hold the unit together. What size aluminum are you using Josh? What is your spacing on the LEDs?
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Originally Posted by 1Snapplehttp:///forum/thread/383238/led-diy-light-build/20#post_3352204
Assuming LEDs on the grey pieces and wires suspending the black pieces right? If thats the case then use rivets so the suspending pieces dont get hot. If you wanted to really transfer heat, welding the pieces together would be the best bet.
I base this knowledge on heatsinks from my experience in both the home and car audio worlds. The best units at keeping cool are the one piece heatsinks. The solid block with fins. Next best is the fins being welded to the solid block. the worst was fins held on by rivets/tack weld/glue. If you have a home theater, take the screws off of the back of the receiver and look at the heat sink inside. Pending name brand and model, the better units will be all one solid piece like my Onkyo. The really horrid units will have a solid piece with some kind of glue/tac weld/riveted folded aluminum foil attached to it ala kenwood/pioneer/sony/jvc etcetera.
Quote:
Originally Posted by acrylic51http:///forum/thread/383238/led-diy-light-build/40#post_3354271
The biggest issue with actual heat sinks are weight. Most people aren't equipped or experienced to weld aluminum, and having it done isn't cheap.
Unless your best friend is the shop foreman at a welding company, LOL!
Quote:
Originally Posted by acrylic51http:///forum/thread/383238/led-diy-light-build/40#post_3354323
One of my good friends is shop forum and a very good welder!!!!!!
yea but, does he have 4 trumpf lasers to work with too? And on the off chance those 4 lasers are down, can he make a call to another shop with 3 other trumfs?
Quote:Originally Posted by Monsinourhttp:///forum/thread/383238/led-diy-light-build/40#post_3354341
yea but, does he have 4 trumpf lasers to work with too? And on the off chance those 4 lasers are down, can he make a call to another shop with 3 other trumfs?
Going this route monsinour your taking it out of the realm of the average DIYer, what fun is it to have someone else do your work?