Yep , that’s a good point. I had read some on this subject, mostly for best heat transfer. Corrosion was mentioned often as a concern and freeze preventative which can lower cooling efficiency. Probably will use automotive coolant and empty the system while in storage and flush it clean, but not sure what corrosion preventive to use at flush and leave dry.
This is all a guess for me, so if anyone has a suggestion please feel free to say something, I’m just a newbie here, I can machine things but I know little about flashlights.
I just ran across this. Very ambitious build. Some good ideas I see here. I’m curious to see how it will work. I’m wondering if convection would be enough to move heat without a pump. Probably not,but it probably doesn’t need a lot of flow to be effective.
Sorry guys for not responding. We have had a few Life Events and are just recovering from it all. I will now begin finishing the light and post pics on the progress in a few days.
Great build!
I am really curious about end result. I think you could have been bought a 6V bigger MCPCB and mod it to 12V. Not a big deal. Just two cuts with a dremel and a thick wire.
Sorry about the loss of pictures here, I will attempt to replace them.
.
Also, I have finished the parts that were missing and plan to start finishing the light the day after Xmas.
This build became more than I was able to handle and was delayed for lack of experience.
Of course the intent has never changed and that was to eventually put a CBT90, SBT90,
or some hot led in it, keep it cool, and determine how much water cooling is required.
Afterwards a new design can be incorporated that will have a normal appearance.
This light is for testing, not looks, so I will not be offended by comments.
.
Do you have more info about the cooling of the LED/shelf?
If you can reduce the heat of the shelf drastically you dont need all that aluminium wound up next to the head, if you could just take out the heat below the LED.
.
The MCPCB is .062 thick and will be inset into the copper cooler. The copper cooler is .100 thick it will sit on.
Im guessing this is the shelf you are asking about. As far as technical info on cooling capacity, no I am no Engineer. Sorry.
.
Yes , you are correct, in after thought and already in deep, it is overkill.
The aluminum coil is the radiator and the copper cooler is the heat exchanger.
They will be connected and water will be pumped / circulated thru both.
Picture quality is not so nice, lots of noise
they are pretty big with 2.5MB each, you can get that to 500KB without loosing quality through Adobe Lightroom or similar software to improve image then resize/compress
.
Yes that is a concern we will tackle at assembly. I may need to modify the pump for lower output
and use a rubber tank ( small ) to maintain light pressure. Lots of unforeseen problems that I will need your help with.