Bxeb heatsink steel

2cent

2cent

Well-Known Member
Aluminium is so pricey. And running at 800ma max I'm told they don't require heatsink on the bxeb 4fters.
So can I use steel channel for wire covers to mount them on it I guess will have some cooling than not having any and mount point.

But there cheap as chips . Just seems if I don't need heatsink I could use anything I wanted ? Even wood?
 
Boatguy

Boatguy

Well-Known Member
2cent said:
Aluminium is so pricey. And running at 800ma max I'm told they don't require heatsink on the bxeb 4fters.
So can I use steel channel for wire covers to mount them on it I guess will have some cooling than not having any and mount point.

But there cheap as chips . Just seems if I don't need heatsink I could use anything I wanted ? Even wood?
Click to expand...
Its hard to beat aluminum for easy of fabricating and rigidity.
$10 for 2 ft of 1" angle isnt crazy expensive.
 
M

Mak'er Grow

Well-Known Member
I'm running 2'-ers like this with next to no extra heat...runs about 28-31 from what the sensors say and fans are set for.
I have 16 X 2' with meanwell 320 watt driver.
Full blast 320 watts it does have some heat...few small fans would help with that, but I only run around 240 for the 2' X 4' I run them in....picture is 1 of 2 panels per box.
I found the same issue for costs here in Canada for aluminum...gets costly quickly for some reason. Then add in shipping and its just not worth it...luckily I had some aluminum channel from some bars I bought a few years back...few holes and screws and done...lol
 

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2cent

2cent

Well-Known Member
Mak'er Grow said:
I'm running 2'-ers like this with next to no extra heat...runs about 28-31 from what the sensors say and fans are set for.
I have 16 X 2' with meanwell 320 watt driver.
Full blast 320 watts it does have some heat...few small fans would help with that, but I only run around 240 for the 2' X 4' I run them in....picture is 1 of 2 panels per box.
I found the same issue for costs here in Canada for aluminum...gets costly quickly for some reason. Then add in shipping and its just not worth it...luckily I had some aluminum channel from some bars I bought a few years back...few holes and screws and done...lol
Click to expand...
wahaha this exactly is what i mean, so useing the steel chanels wont be an issue lol,
workabilitys nothing i work with hss steel plate at 10mm thick oxy cutter sna d the works aluminiums like tissue paper lol, normal steels cardboard to me
 
Rocket Soul

Rocket Soul

Well-Known Member
Look around there must be better prices on Alu, that's outrageous.

Steel angle: no good for heatsinking as it retains too much heat. Could be used for a frame though but don't make full backing of it. Also factor in weight, especially if you're raising and lowering on your own.
 
2cent

2cent

Well-Known Member
Rocket Soul said:
Look around there must be better prices on Alu, that's outrageous.

Steel angle: no good for heatsinking as it retains too much heat. Could be used for a frame though but don't make full backing of it. Also factor in weight, especially if you're raising and lowering on your own.
Click to expand...
Yeah over the pond aluminium is pricey as fk looking at sheets to cut myself 1300x1200x2mm is $220 is a saving buthe costs more then drivers n strips lol
 
cobshopgrow

cobshopgrow

Well-Known Member
supply chains are fucked up worldwide.
for 2020 aluminium prices seems to be quite stable here, 30cm are below 1.5€, the cut is free.

it sounds like its time to recycle something, looks like youre handy with metal works so i guess you have lots of options.
is there a yunk yard around? for a 200$ saving its may worth a visit.
 
cobshopgrow

cobshopgrow

Well-Known Member
could it make sense to repurpose a aluminium ladder??

for the heatsinking i wouldnt worry using steel, iron have still 80 W/(m*k) about a third of aluminium, but the weight is really ugly to my view.

@TintEastwood havent you used some foamboard?
was it a permanent install and still doing good?

foamboard is of course a insulator more like 0,035…0,050 W/(m*k), so better to dont cover too much of the strips with it.
 
TintEastwood

TintEastwood

Well-Known Member
cobshopgrow said:
could it make sense to repurpose a aluminium ladder??

for the heatsinking i wouldnt worry using steel, iron have still 80 W/(m*k) about a third of aluminium, but the weight is really ugly to my view.

@TintEastwood havent you used some foamboard?
was it a permanent install and still doing good?

foamboard is of course a insulator more like 0,035…0,050 W/(m*k), so better to dont cover too much of the strips with it.
Click to expand...
Good memory! - Foamboard worked great, no problems.

Seven Sisters

Flyweight strippers. Tested all good. No smoke released. 8-)
www.rollitup.org
 
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