jma1978 Posted December 21, 2009 Share Posted December 21, 2009 Just give the LED a quarter turn and drill two new holes where the screw broke off. Good to go! Link to comment
plantarms Posted December 21, 2009 Author Share Posted December 21, 2009 i'm working on my second heatsink now, measuring twice and taking everything very slowly Link to comment
badfish816 Posted December 21, 2009 Share Posted December 21, 2009 you can drill the broken screw out. i did it all the time on cars. it will be hard but you can do it. you can try to use a drill bit smaller than the size you used to drill with, make a tiny hole then use an extractor to get it out. or buy a reverse drill bit and try to back it out. good luck. if you decide to sell it then i might pick it up from ya. Link to comment
plantarms Posted December 21, 2009 Author Share Posted December 21, 2009 i also have a couple of holes in the heatsink that are too close together, so i don't think you would really want it, that's why i'm working on my second one, i'm drilling and tapping first, then putting in the sanding work Link to comment
plantarms Posted December 21, 2009 Author Share Posted December 21, 2009 finished the drilling and tapping on the backup heatsink, no problems this time! i'm going to buff this heatsink some then add the led's. i know the led's should be on the heatsink when they are being soldered, but do most people screw them down with the nylon washers at this point? wouldn't that cause the washers to melt? Link to comment
gregzbobo Posted December 21, 2009 Share Posted December 21, 2009 finished the drilling and tapping on the backup heatsink, no problems this time! i'm going to buff this heatsink some then add the led's. i know the led's should be on the heatsink when they are being soldered, but do most people screw them down with the nylon washers at this point? wouldn't that cause the washers to melt? I wouldn't worry a WHOLE lot about the washers melting or softening, but it would not hurt to just screw them down lightly without the washers while soldering. I'd bet the heatsink would pull the heat off before it got warm enough to do anything to them. Link to comment
plantarms Posted December 21, 2009 Author Share Posted December 21, 2009 alright that makes sense, thanks man. also, i'm working on wiring my moonlight, do you know anything about current usa's moonlight setup? Link to comment
evilc66 Posted December 21, 2009 Share Posted December 21, 2009 It's fairly wide angle, and not very bright. If the LED you are using is too bright, you can increase the resistor value to make it dimmer. Link to comment
plantarms Posted December 21, 2009 Author Share Posted December 21, 2009 It's fairly wide angle, and not very bright. If the LED you are using is too bright, you can increase the resistor value to make it dimmer. hmm alright, increase as in use the next one or just up several levels? Link to comment
plantarms Posted December 22, 2009 Author Share Posted December 22, 2009 drilled some holes in the fixture today for the dc panel adapters, i'm also using a separate power supply for the fans so that i can control the speed(through variable voltage resistance) using a rheostat. i'' upload some pics tomorrow Link to comment
plantarms Posted December 23, 2009 Author Share Posted December 23, 2009 here are some pictures of the progress, mainly just the back panel for power mounts. now i've got some sanding and soldering to do Link to comment
SurrealReef Posted December 24, 2009 Share Posted December 24, 2009 I have to ask, would a nova fit on a tank this size? Link to comment
plantarms Posted December 24, 2009 Author Share Posted December 24, 2009 I have to ask, would a nova fit on a tank this size? yeah, the original fixture is the current nova extreme t5 18'', but i knocked it down to 10'' Link to comment
Llamaguy Posted December 24, 2009 Share Posted December 24, 2009 If you haven't already attached your LEDs, go to Autozone and get a can of mag wheel polish. It will only take you a little time to give to a chrome like finish. You won't even be able to see any markings in the aluminum after you're done. You'd have to spend an eternity and a couple dozen grades of sandpaper to get the results of a polishing compound. Link to comment
plantarms Posted December 24, 2009 Author Share Posted December 24, 2009 yeah but doesn't using polish leave a residue on the heatsink that interferes with the thermal transfer of the LED's to the heatsink? Link to comment
ajmckay Posted December 24, 2009 Share Posted December 24, 2009 rubbing alcohol should remove any residue. Link to comment
plantarms Posted December 24, 2009 Author Share Posted December 24, 2009 alright, thanks for the tip! Link to comment
plantarms Posted December 24, 2009 Author Share Posted December 24, 2009 i don't think i'm actually going to polish this though, it will be mounted and will not be seen and the lapping job was to get the heatsink perfectly flat for an excellent thermal surface Link to comment
dangeross25 Posted December 25, 2009 Share Posted December 25, 2009 here are some pictures of the progress, mainly just the back panel for power mounts. now i've got some sanding and soldering to do super clean. lookin good. I may steal this from your room...but I'll feel bad and give it back.. Link to comment
plantarms Posted December 25, 2009 Author Share Posted December 25, 2009 haha thanks man, i've put so much work into this thing Link to comment
plantarms Posted December 27, 2009 Author Share Posted December 27, 2009 no updates yet, i've been very busy during the holidays and haven't gotten to work on this, however my girlfriend did get me three heads of neon green trumpet coral for christmas! she even did her research and everything to make sure it would go in my tank Link to comment
plantarms Posted January 6, 2010 Author Share Posted January 6, 2010 mounted the led's today and soldered them together, used a thin layer of arctic silver 5 thermal paste between the led and the heatsink. all i have left is to build the moonlight, mount the heatsink, and connect all the wiring. here are some pictures Link to comment
plantarms Posted January 6, 2010 Author Share Posted January 6, 2010 just tested the led's and they all work! and wow, they are bright! Link to comment
plantarms Posted January 6, 2010 Author Share Posted January 6, 2010 just put in about four hours of work on this today, i soldered and heatshrinked the buckpuck to the led wires and power supplies, and i'm working on the moonlight right now. i ran the led's full power for about 15 minutes and the heatsink is only a little warm (and that was with the heatsink upside down and inverted in the other heatsink without fans) i'm going to try to finish this all up tonight, i will post pictures soon Link to comment
plantarms Posted January 7, 2010 Author Share Posted January 7, 2010 pictures of some of the work today Link to comment
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