DIY design build throwdown

Fastslappy

Well-Known Member
I wish ideal would re think their design a bit....compared to the BJB's....they aren't even close
I like the mini reflector on the BJB & wish they'd do a 3590 version
solid or stranded i have no issue with either both have +'s & -'s in use
but never had a issue removing wire solid or strand
 

SSGrower

Well-Known Member
@SSGrower LOL @ the fishing reel, Macgyver must be proud :bigjoint:
Actually he told me since I didn't get it installed it was like I let the bomb go off, I said but I didn't have the right supplies, to which he said so what? You never saw me complain......

Those ideals still like 18 gauge solid strand imho...I will not even use a strand with Ideal, ever. THe BJB holders seem to like both and aren't fussy over any particular wire...in fact since I was remounting a bunch of diodes...I went to fuck around with Ideals again, and 18 / 20 gauge strand pull out, like feathers from air.......

I wish ideal would re think their design a bit....compared to the BJB's....they aren't even close :peace:
I tin the ends of the stranded wire, but I can see the advantage of solid.
 

SSGrower

Well-Known Member
Quick lesson of the day, if you use liquid tape might not want to put heat shrink around it too as I'm feelin like my heat gun puts out more than 200F temps to shrink it. Why might you ask is this important? Because say you did this and all was well when you went to sleep and all was well when you woke, but at some point during the day the you walk in and it takes a bit cause there's just that feeling something isn't right. Fuck there's no hum of the fans!! heatsinks are really really really f'n hot. You made yourself a delayed timebomb!!!! deadshort on one branch of a parallel circuit = nothing else works as opposed to an open circuit failure (blown led). This very easily could have resulted in a fire, I'm very lucky.

Suggestions if you use liquid tape - be sure you know what it is capable of, wait for it to cure completely (I thought this was dry but apparently takes 24 hrs or more) before gingerly asking the heatshrink tubing to kindly form a sung layer over the two wires.

p.s. so glad I can find out what to do if I drink the stuff by reading the label, but then again I just drank liquid tape how can you expect me to read. Fucking instructions on how to use the product correctly would be so much more helpful.
 

SSGrower

Well-Known Member
Want to play a game?

What is in the pictures below?
Hints - pics were taken in chronological order, the digital display is in deg celsius and reads 30.6 in pic 2 and 28.1 in pic 3, and pretty much gives it away too.Want to play a game1.JPG Want to play a game2.JPG Want to play a game3.JPG Want to play a game4.JPG

There certainly are more efficient ways of doing this but this also gives me more info on what my temperature and heat sources are doing, which in the future will help me manage the system temp by getting a 12v relay for a 110 exhaust fan or even mechanical solenoid to control that 2 ton cooling unit I'm eyeballin'!!!!! (i'm sure that's warranted for a <6 sq.ft. area)!!!
 

SSGrower

Well-Known Member
idk man,is it a fan speed controller?
Not speed just on off, a simple solid state resistor of the right value on the DC fan to provide just enough air given known ambient Temps and blah, blah, blah insert tech info here.... to slow the fan down would be very elegant diy soluion.

reinventing the wheel !

just get a reliable temp\day\night fan controller.
I know and it's not like I think it's any more round, everything to do any or all of this is available for someone to go buy, but to me this is fun. Mad respect for you purp, just have to look at a few of your posts to know you know what's what.
 

sixstring2112

Well-Known Member
Not speed just on off, a simple solid state resistor of the right value on the DC fan to provide just enough air given known ambient Temps and blah, blah, blah insert tech info here.... to slow the fan down would be very elegant diy soluion.


I know and it's not like I think it's any more round, everything to do any or all of this is available for someone to go buy, but to me this is fun. Mad respect for you purp, just have to look at a few of your posts to know you know what's what.
i looked for resistors in line or anything really lol.i figured you had something on that circuit board to controll the fan.so its mounted by the fan not on the temp gauge board?
 

SSGrower

Well-Known Member
i looked for resistors in line or anything really lol.i figured you had something on that circuit board to controll the fan.so its mounted by the fan not on the temp gauge board?
Nope its a 15 dollar digital t-stat with remote sensor, a consumer ready version available at home depot for about 90 bucks or you just get the cheapo 20 dollar one an base off room temp instead of thermal epoxy to that beautiful hole in the fins and sits about 5mm above the cob. In my S.W.A.G (Scientific Wild Ass Guess) is balls on for the temp of the cob within a couple of degrees.
 

PurpleBuz

Well-Known Member
Someone has a temperature sensitive resistor circuit connected to the dimming pot of their LED driver. I thought this might be that, and yes that would indeed be a better mousetrap lol
Fans for active cooling on a light shouldn't be controlled by the temp of ambient air, they should be controlled by what an engineer determined to be safe and to provide the junction temp required within an expected ambient air range. if the ambient air is a bit cooler than expected a slightly less Junction temperature only results in higher efficiency.

Ambient air cooling in a grow room is a whole different ball of wax.
 

SSGrower

Well-Known Member
Someone has a temperature sensitive resistor circuit connected to the dimming pot of their LED driver. I thought this might be that, and yes that would indeed be a better mousetrap lol
you could do that, this is currently running 4 fans (DIY light 2, DIY light 3 both essentially the same except for light color and width of wood, Pendant 1 (5000k), and Pendant 2 (4000K), just have to figure out how an on off of 12v DC applies to that situation
 

SSGrower

Well-Known Member
Fans for active cooling on a light shouldn't be controlled by the temp of ambient air, they should be controlled by what an engineer determined to be safe and to provide the junction temp required within an expected ambient air range. if the ambient air is a bit cooler than expected a slightly less Junction temperature only results in higher efficiency.

Ambient air cooling in a grow room is a whole different ball of wax.
According to spec max operational design temp of cree cxa3070 is 85 deg C, please correct me if i am wrong on this.

I'd add I'm not thinking its another ball of wax, more along the lines of a heaping mound of....
 
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