LED DIY : Making of a "DJ SET "-style grow led light .

guod

guod

Well-Known Member
we need more days to get this thing round.
i go also now to meet some friends

last Question
the shed where the fan is mounted is made is it from alu or plast
same Q. for arc bars on both sides
 
stardustsailor

stardustsailor

Well-Known Member
the shed where the fan is mounted is made is it from alu or plast
same Q. for arc bars on both sides


Comm.problems again ...

Shed =top cover /plate ?
arc bars= angles ?

Angles used in model are found here : http://sketchup.engineeringtoolbox.com/angles-to_8.html
( 2 pcs of RSA 25x25x3 Equal leg=top cover's sides =>"funnelers " I call them ...
2 pcs of RSA 40x20x4 Unequal leg= heatsink side angles (big ones )

All (angles + plate ) can be of (just mentioning the choices ) :

-Steel
-Several alloys of Alluminium
-ABS tool grade plastic ....<=Tough call this one ,but less weight and less possible vibration-from fan- buzzing sounds ..

I think that is the best potentiometer for the new buck drivers ..
Have a look ,if you want ...
http://www.alps.com/WebObjects/catalog.woa/E/HTML/Potentiometer/RotaryPotentiometers/RK09L/RK09L114001T.html
 
guod

guod

Well-Known Member
Shed =top cover /plate ?
arc bars= angles ?

yes and yes

top cover = ABS tool grade plastic, good idea ... the right one eleminates vibration

arc bars= angles.. i preferred here Alu need this for cooling the V.Reg.

TO 220 Case
http://sketchup.google.com/3dwarehouse/details?mid=c751f7ce8b80fad14eed544d62927463&prevstart=0

and a tiny PCB for some Resistor, etc
will see if i find the time to do it in s.up.

alps is only good with a golden knob, ask the high end audio guys :lol:
 
stardustsailor

stardustsailor

Well-Known Member
Come on now .. ...
What's wrong with the RK09L11-L200 ?
Really ?
Expensive ? Or shitty ?
Nevertheless...
You 've to admit though that S.Up is better than little carton boxes and legos .....
RK09L11-L200 a.jpgRK09L11-L200 b.jpgRK09L11-L200 c.jpg


 
PetFlora

PetFlora

Well-Known Member
guod said:
grab you a 30 to 50W Led-Emitter glue them the plate, some wires and a driver and you are done

7 of them in Merkaba Style ...
Click to expand...
At $ 90 X 7= $560 in heat sink, + shipping. Too rich for my blood, but I'll bet it would grow like a mofo, and look cool as hell.

My upcoming Merkaba Style DIM (Do It Myself) will be using a 1 X 12 X ~ 40-46" wooden board, big enough for 3 M clusters, using ceramic light sockets + 6.5 -12w screw bulbs @ ~ 100 lumens/w = > 10,200 l/M cluster . I bought the first gen 12w Philips RP for $20, so 12 of those (2 clusters) = $240 + 2 @ 6.5w NW (which I already have) + misc, ~ $300. Adding a 3rd M cluster would cover ~ 18 X 48 with 35,000+ lumens, at a ~ cost of $450. Thoughts?
 
stardustsailor

stardustsailor

Well-Known Member
It's just amazing ...
This little buck driver ,being able to drive all three x 12 pcs PCB s (36 pcs Oslons SSL ) ...
Really tiny ...
Even comparing to MeanWell LDD-H ....

really tiny driver 2.jpgreally tiny driver.jpg
 
stardustsailor

stardustsailor

Well-Known Member
Well ......


I've decided couple of changes on the model ....


Let's see ....

1) Power Supply Connector

I've made my mind about it ...
Definately ..
I'm going to use the Neutrik NC3 MPR-HD XLR connector .(Uploaded Model of it from OEM STEP file ) .
http://www.neutrik.co.uk/en-uk/lighting/xlr/mpr-hd-series/


went nc3mprhd.jpgmaybeconnectorneedsmovingasides.jpgmuchbetternow.jpg
Why this connector ?

-compact /small sized ...
-16 A / 50 V DC max load ...
-Industrial grade toughness ...
- Dust and water ingress sealing to IP65 rating is achieved by using HD cable connector (NC3FX-HD)...
http://www.neutrik.co.uk/en-uk/lighting/xlr/xx-hd-series/nc3fxx-hd-d
-Sealing gasket for water tight panel mount ...
-And mounting does not need any extra holes or screws ...That's nice ....
....
And really a "hard nut"-of a connector- to crack ,there ....

...........

2) Top Cover Material
fiberglass cover.jpg
Because of relatively small surface (200 x 200 mm ) ,in order to reduce some cost ,weight and possible vibration noises,from fan..
I've decided that Liquid epoxy or Polyester Resin over Fiberglass cloth (even combined with top layers of Carbon Fiber),****
is best possible solution ....

Side "turbulators -funnelers -pressure accumulators " or just 25x25x3 angles ,stay as they are ,that is made of Alum .

......
3 )

keep the electronics small.jpgsofarsogood.jpg
Basic concept takes a form ...
Details are solved ...
Ok ...
So far so good ...
......The buck driver is AWESOME with AWESOME specs ....
And...tiny ...

Goooood!!!!!

Now ...

Found those pots :

http://www.bourns.com/ProductLine.aspx?name=precision_pots_singleturn



Also ....

PCB dimensionS are going to be 50 x 60 mm ...

I'll explain the reasons later ..
(very tired now ,to do that ... )

Anyway ....

That was all....



Edit : **** ...Or plexiglass or Polycarbonate plates ...(~ 3 mm )
 
stardustsailor

stardustsailor

Well-Known Member
Now...

Pay close attention to this baby ....
baby 1.jpgbaby posing 2.jpg
baby posing.jpgbaby undressing.jpgbabytop.jpg
'Cause .....When time comes ...
And it's light is born ....
amen.jpghehehe.jpgnowweretakin.jpg
Jaws are gonna drop ,to the floor ...
 
PetFlora

PetFlora

Well-Known Member
stardustsailor said:
Wait ..You 're gonna laugh now ....
I'll give it a shot ....

No ...
Those bucks need PWM ...
So how with a potentiometer ,can one create or /and control a pulsed width modulation ?

Directly it is not doable ...Is it ?

No way ...

Potentiometer can be used to control a low voltage circuit ,which in turn will regulate a PWM generator ...
Which then sends the "signal" to buck-driver ...To dim it ...or switch it off-on ...

Ok ...
I give up ! ...
...
No potentiometer then ...


PS: 100% of PWM Duty cycle is same as >2.5 ~ 6VDC or open circuit,at DIM ~ -Vin ?
What is that range then ? 100 ~ 1KHz ? from what % to what % ?

Or it means 100% of PWM Duty cycle is an DC voltage('square') signal 2.5-6 V and freq of
1KHz ?
What is 100Hz ?
Oh....
I get it ..100 Hz is the min value ..The 210 mA .....
Ok ...

......
-PWM generator with output voltage 2.5-6 V
regulated by low voltage circuit .
-Potentiometer
-Power supply .(47 V ) (for both supplying power to PWM generator and it's low voltage regulating circuit...)
......

Hmm....

Ah....I prefer chlorophyll,microscopes , cells ,test tubes ,ect .....
What the heck I'm doing in 3D modelling and electronics ?
Neither is my " thing "......
Click to expand...
The audio industry uses digital vol controls for some applications. Will that work?

 
stardustsailor

stardustsailor

Well-Known Member
......................

Leds sitted above fins ..fins with leds have fins without leds between them ..
Heat dissipation,as I think it will work best ....
pcb new 12 ssl layout.jpgpcb new 12 ssl layout b.jpg
....

..
led world.jpgon fins and fins without for gap.jpgon fins.jpg
on range.jpgxray top leds fanfin.jpgbabylooksawesome.jpg
 
guod

guod

Well-Known Member
Leds over the Fins, not necessary... the 10mm Base gives a good heat spread.
alps and burns-Pots are nice, a standard pot is here enough.

wire schematic for the bucks
s-Buck.jpg
a pcb for this was nice
 
stardustsailor

stardustsailor

Well-Known Member
a pcb for this was nice...


Something like this ,or I've understand it wrongly ?
led analog dimmer circuit 2.jpgsomethinglike this.jpg...


You want the whole thing ?
(and positive + lines on pcb ? They can stay on wires .... )
One driver per box isn't that correctly ?
 
PetFlora

PetFlora

Well-Known Member
Is that digital? Seems analog with the shaft. Most cheap and hi-end A/V equipment use remote control, of course the quality changes. There is known bit loss at lower volumes in the cheaper ones, but not sure that would affect what you intend to use it for
 
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