Jade

[stardustsailor]

Step #1 : Making heatsink attachments .

Firstly the heatsink has to be moded ,in order to be able to be attached to the inner aluminium plate of the case .
This plate will act also as lid ,for the heatsink fins ,restricting the fan's air flow into the fin area ,of the heatsink .
Fan will be blowing ,so the hot air will be exausting from the heatsink sides .

For that purpose 2x aluminium made angles are going to be used .

Their length should be at least the same as the heatsink length ..


In contact with the heatsink is an 'unprocessed ' angle ( 20 x 20 mm x 1.54 mm thickness ) ,
while further down is a ' complete ' one (drilled & countersunk / corners slightly rounded ).

(Drills used : 4 mm for screw hole & 6 mm for countersinking / hole edge cleaning .
3 mm for rivet hole & 5 mm for countersinking / hole edge cleaning . )


(4x aluminium 3 x 10 mm rivets per angle )


( 4x M4 stainless steel allen truss head, screws per angle ,with nut and two washers per screw. )

 

[stardustsailor]

On a flat surface like a kitchen bench ,placed the heatsink and the angle.
So to Mark the holes at the heatsink .
(Never use a graphite ordinary pencil on aluminium !!!!
It will cause severe corrosion of aluminium,over time )


Then drill and clean the rivet holes at the heatsink ...
( 3 mm for hole ,5 mm for edge cleaning )


A quick "riveting OK " check ..



Same job for the other side of heatsink .


Cheers.

 

[stardustsailor]

And for attaching the angle securely to the heatsink ,some two part epoxy resin can be used .
(it has to adhere to aluminium) .'Cause I belong to the overkillers ,I personally use Arctic Silver Epoxy.
But almost any other epoxy will do just fine.


The rivets are placed ,before epoxy hardens...


Ready ...





And a side view ...


Now ,we can leave the heatsink aside for a while.There's some work on it to be done,but later on.

 

[uzerneims]

HLP-80H-42
24V and 2.7A, right?

Final question:
So 3000k will be going for all grow, from seed to flowers.

If yes, then i'm definitely inspired by this and folowing vero

 

[churchhaze]

I might consider something like this in the future. I wish I could try all the ideas...

On the note of the pursuit of perfection, these seem like they would be a good fit for a long length of the 4.85" profile available from heatsink usa.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835608052

 

[stardustsailor]

HLP-80H-42
24V and 2.7A, right?

Final question:
So 3000k will be going for all grow, from seed to flowers.

If yes, then i'm definitely inspired by this and folowing vero

HLP-80H-42 :
42 VDC max for CC operation , ~2.2 A max with CXA3070 .

Yes ,3000 K / 80 CRI will be going for the complete grow cycle , from seed to flowers.

( Not much difference from CXA3070 of same CCT/CRI ,regarding photomorphogenic effects.
Maybe a tad more stretching during vegging ,but also a tad thicker flowering ,than under the CXA3070 AB.
Just maybe .Can't tell for sure.
Difference is very-very slight,amongst "same mom clones" but amongst "same mom seed " plants also.
Neligible . As also the photosynthetic yields .A tad better growth and yields with the Vero 29 .
But not something really 'boasting' ....
about ..3-5% more yields ,maybe ..
3-5 grams more for the Vero 29 ,for every 100 grams of dry flowers.
I.e.

-Plant set #1 :
2x Vero 29 (@2.1 A ): 221 grs
2x CXA3070 AB (@2.1 ) : 215 grs

-Plant set #2 :
2x Vero 29 (@2.1 A ): 217.5 grs
2x CXA3070 AB (@2.1 ) : 213.5 grs

-Plant set #3 :
2x Vero 29 (@2.1 A ): 234.5 grs
2x CXA3070 AB (@2.1 ) : 228 grs

Cheers.

 

[epicfail]

I love watching your builds and always look forward to your new projects. I'm just going to make a suggestion. When I'm done sanding and polishing aluminum I use a couple layers of low tack masking tape to protect the surface while doing the rest of your fabrication. Don't use duct tape or packing tape as it will leave adhesive behind that can be tricky to clean sometimes.

 

[uzerneims]

HLP-80H-42 :
42 VDC max for CC operation , ~2.2 A max with CXA3070 .

Yes ,3000 K / 80 CRI will be going for the complete grow cycle , from seed to flowers.
( Not much difference from CXA3070 of same CCT/CRI ,regarding photomorphogenic effects.
Maybe a tad more stretching during vegging ,but also a tad thicker flowering ,than under the CXA3070 AB.
Just maybe .Can't tell for sure.
Difference is very-very slight,amongst "same mom clones" but amongst "same mom seed " plants also.
Neligible . As also the photosynthetic yields .A tad better growth and yields with the Vero 29 .
But not something really 'boasting' ....
about ..3-5% more yields ,maybe ..
3-5 grams more for the Vero 29 ,for every 100 grams of dry flowers.
I.e.

-Plant set #1 :
2x Vero 29 (@2.1 A ): 221 grs
2x CXA3070 AB (@2.1 ) : 215 grs

-Plant set #2 :
2x Vero 29 (@2.1 A ): 217.5 grs
2x CXA3070 AB (@2.1 ) : 213.5 grs

-Plant set #3 :
2x Vero 29 (@2.1 A ): 234.5 grs
2x CXA3070 AB (@2.1 ) : 228 grs

Cheers.

For me those driver's specs look trippy, also i've a lot learned here about electricity, but that is still the same old forgotten from physics lectures.
http://www.meanwell.com/search/HLP-80H/HLP-80H-spec.pdf
HLP-80H-42 - It has - 42V and current 1.95A
I will do VERO's too, just looking for some alternative, maybe cheaper driver tho, this kick's my budget.
And that VERO yield? From 3000k?

 

[bicit]

HLP-80H-42 :
42 VDC max for CC operation , ~2.2 A max with CXA3070 .

Yes ,3000 K / 80 CRI will be going for the complete grow cycle , from seed to flowers.
( Not much difference from CXA3070 of same CCT/CRI ,regarding photomorphogenic effects.
Maybe a tad more stretching during vegging ,but also a tad thicker flowering ,than under the CXA3070 AB.
Just maybe .Can't tell for sure.
Difference is very-very slight,amongst "same mom clones" but amongst "same mom seed " plants also.
Neligible . As also the photosynthetic yields .A tad better growth and yields with the Vero 29 .
But not something really 'boasting' ....
about ..3-5% more yields ,maybe ..
3-5 grams more for the Vero 29 ,for every 100 grams of dry flowers.
I.e.

-Plant set #1 :
2x Vero 29 (@2.1 A ): 221 grs
2x CXA3070 AB (@2.1 ) : 215 grs

-Plant set #2 :
2x Vero 29 (@2.1 A ): 217.5 grs
2x CXA3070 AB (@2.1 ) : 213.5 grs

-Plant set #3 :
2x Vero 29 (@2.1 A ): 234.5 grs
2x CXA3070 AB (@2.1 ) : 228 grs

Cheers.

This is good news, as vero 29's are much easier to locate then high bin CXA's.

 

[SupraSPL]

SDS, do you think the Vero 4000K curve might be comparable to the CXA 3000K. I have been wondering about that since they share the same LER and they may have the same output power in the blue range (according to Mr Flux, Vero 4000K blue = 13% power 10% flux) And if I recall, you recalculated the CXA 3000K to be 13-14% blue? Was that in terms of power or photons?

 

[AquariusPanta]

SDS, do you think the Vero 4000K curve might be comparable to the CXA 3000K. I have been wondering about that since they share the same LER and they may have the same output power in the blue range (according to Mr Flux, Vero 4000K blue = 13% power 10% flux) And if I recall, you recalculated the CXA 3000K to be 13-14% blue? Was that in terms of power or photons?

The Vero series or V29?

I bought V18 4000K 80CRI models based on what I saw from the spec sheet, which basically covered more ground than either of the the 5000K (@70CRI) and 3000K (@800CRI) versions.

I do recall StarDust making a fuss in the recent past about too much blue, like more than 15%, causing an issue with a given flowering plant ........ IDK...... it's 1AM here. I'm sort of addicted to basking in the community's infinite wisdom.

Just when you think you've absorbed enough, you return in search of more.

Time well spent.

 

[caretak3r]

"Designed for tight spaces of up to .5 of a square meter ."

SDS, if this is the case, I'm curious why you didn't got with more of the smaller Veros, similar to MrFlux in his grow cab?

 

[bicit]

"Designed for tight spaces of up to .5 of a square meter ."

SDS, if this is the case, I'm curious why you didn't got with more of the smaller Veros, similar to MrFlux in his grow cab?

System efficiency and simplicity i imagine. It would take nine vero 10 emitters to replace 1 vero 29. Plus the 29 has a lower thermal resistance which helps with the system efficiency. My guess anyhow.

 

[stardustsailor]

SDS, do you think the Vero 4000K curve might be comparable to the CXA 3000K. I have been wondering about that since they share the same LER and they may have the same output power in the blue range (according to Mr Flux, Vero 4000K blue = 13% power 10% flux) And if I recall, you recalculated the CXA 3000K to be 13-14% blue? Was that in terms of power or photons?

No..
I do not think so ...
The 4000K vero 29 compares directly to 4000K CXA3070 and so on ...
Having the same LER ,does not necessarily means anything else ,but only that at 1 Watt radiant output ,both they will output a luminous flux of i.e. 325 lumens ...

10% of flux for the CXA3070 3000K .



Vero 29 3000K -80 CRI has:
8.11% of total photon flux at band " VLT + B " 380-499nm
38.63 %of total photon flux at band " G+AMBR " 500-599 nm
47.77% of total photon flux at band " R+DR " 600-699nm
5.49 % of total photon flux at band " FR / NIR " 700-800 nm

R : FR = 5.92 ( <= This means compact vegetative growth/short internodal distances .)
PPE (PPS ) = 65.75% of phytochrome at Pfr state.
Pfr : Pr = 1.92
Blue peak Vero 29 3000°K -80CRI : ~ 451 nm
Blue peak CXA3070 3000°K -80CRI : ~ 454 nm

Red/Amber peak Vero 29 3000°K -80CRI : ~ 610 nm
Red/Amber peak CXA3070 3000°K -80CRI : ~ 602 nm





Cheers.

 

[stardustsailor]

"Designed for tight spaces of up to .5 of a square meter ."

SDS, if this is the case, I'm curious why you didn't got with more of the smaller Veros, similar to MrFlux in his grow cab?

Plenty of reasons.

 

[caretak3r]

OK, let me ask another way Since this light is the pursuit of perfection, and you stated it was one of your design goals for it be an ideal light for tight spaces, may I assume you don't have issues with coverage or light intensity in a situation where you are severely height limited?

 

[AquariusPanta]

OK, let me ask another way Since this light is the pursuit of perfection, and you stated it was one of your design goals for it be an ideal light for tight spaces, may I assume you don't have issues with coverage or light intensity in a situation where you are severely height limited?

 

[stardustsailor]

OK, let me ask another way Since this light is the pursuit of perfection, and you stated it was one of your design goals for it be an ideal light for tight spaces, may I assume you don't have issues with coverage or light intensity in a situation where you are severely height limited?

Coverage :
Typical viewing angle is 120⁰.
( The viewing angle is defined as the off axis angle from the centerline where relative intensity is ½ of the peak value.)

Light intensity : The one output from 300mA driving to the one output from 2100mA driving ....


Coverage + Light intensity of " the pursuit of perfection",
in combination, may 'take care' a space of a surface half a spuare meter (~ 5.38 sq feet ),
and a height range above 60 cm ( ~ 2 feet) and less than 3 meters ( ~ 10 feet ) .

Two of those ,can handle a space of 1 square meter (of 'standard' 1.6- 2 meters height ) ,of course ...
With their max power dissipation (2 x 200 W ) figure at plug ,
constantly being similar,if not more , to dry flowers,finally yielded.
(Driving lower increases gpW )

Cheers.

 

[Positivity]

Good explanation..

Any lower a height would be a more specialized grow, where the emitters would have to be directly overhead and driven softly. A la flux and spectral microcabs..

 

[guod]

first, some declaration...
Beam Pattern

... The brightest part, or the center beam candlepower (CBCP), is the intensity of the brightest part of the beam. The beam angle is the usable part of the beam, defined as the point at which the light intensity falls to 50% of the brightness of that center beam. The part of the beam pattern between 50% and 10% of the maximum intensity is known as field angle. The rest of the light is called spill, and in theatrical lighting field and spill are considered unusable, although they can contribute to the ambient light level in an architectural application.

http://www.graybar.com/applications/lighting/blog/display-lighting

a typical 120° emitter show up this numbers for beam & field angle.
in this graph we see also the half beam angle at 30° with 85% of the maximum intensity.


if we now put this angles & numbers in a virtual growspace, we get this


and some real world data for: one cob per sqft
https://www.rollitup.org/t/efs-r-diy-led-circuits-arduino-hot-peppers-and-more-thread.840144/page-3#post-11028108