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Little Blue - Mini ITX Autonomous Boat Brain - Page 22

post #211 of 254
Quote:
Originally Posted by kevingreenbmx View Post
It would not affect power right now, because I am running the radiator passive with no fans, however, it would decrease weight. that is why we are considering the possibility of that in the future.
My portable water filter (for camping and stuff) has a "no clog" filter on it that stops debris from accumulating in the pump. That link has a picture of what it looks like. It has a barb that connects to surgical tubing, and works very well. Might be able to pick up just the filter at a Bass Pro shop or something.

Another thought would be to use something like a scotch pad that you could wash off easily.
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post #212 of 254
What about mounting the RAD horizontally to the bottom of the boat and just building a cheap aluminum fin array:

1) Cut the top and bottom off a pop can
2) Cut down one side of the pop can to give you a long sheet of aluminum
3) Bend it in a W
4) Mount it to the bottom if the RAD with some thermal pads and something to hold pressure on it
5) Repeat with multiple pop cans
6) Then mount the RAD low enough that the aluminum fins are in the water

That way you RAD isn't getting clogged and you are able to use the lake's water a little bit.
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post #213 of 254
Thread Starter 
Quote:
Originally Posted by rdfloyd View Post
My portable water filter (for camping and stuff) has a "no clog" filter on it that stops debris from accumulating in the pump. That link has a picture of what it looks like. It has a barb that connects to surgical tubing, and works very well. Might be able to pick up just the filter at a Bass Pro shop or something.

Another thought would be to use something like a scotch pad that you could wash off easily.
Quote:
Originally Posted by axipher View Post
What about mounting the RAD horizontally to the bottom of the boat and just building a cheap aluminum fin array:

1) Cut the top and bottom off a pop can
2) Cut down one side of the pop can to give you a long sheet of aluminum
3) Bend it in a W
4) Mount it to the bottom if the RAD with some thermal pads and something to hold pressure on it
5) Repeat with multiple pop cans
6) Then mount the RAD low enough that the aluminum fins are in the water

That way you RAD isn't getting clogged and you are able to use the lake's water a little bit.
these are both options that we have considered. We currently are working to get the computer implemented as is on the boat, with a closed loop. it will be easy to switch to those options later on after we know everything else is working.
post #214 of 254
The water cooling is definitely pretty sweet, but would it be possible to simply cool it by air with 2 snorkled air ducts? By snorkled I mean 2 tubes attached to the sides of the case, run vertically then bent back downwards to stop any water from entering? Then, at whichever one is dedicated as the exhaust port mount a fan and draw air through the system? A fan is pretty inexpensive to replace and would be lighter than the rest of the system. Not sure it would draw less power though unless the radiator was already running fanless.

To Axipher: The RAD idea you put forth seems interesting, but wouldn't you have to mount the mother board upside down for this to work? The processor would need to be as close to the bottom of the box as possible, and removing the box seems difficult at that point.

Thoughts?
post #215 of 254
Quote:
Originally Posted by littlebluefall1 View Post
The water cooling is definitely pretty sweet, but would it be possible to simply cool it by air with 2 snorkled air ducts? By snorkled I mean 2 tubes attached to the sides of the case, run vertically then bent back downwards to stop any water from entering? Then, at whichever one is dedicated as the exhaust port mount a fan and draw air through the system? A fan is pretty inexpensive to replace and would be lighter than the rest of the system. Not sure it would draw less power though unless the radiator was already running fanless.

Thoughts?
I think that could be a good idea
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post #216 of 254
hmm taht is a good idea
post #217 of 254
Thread Starter 
Quote:
Originally Posted by littlebluefall1 View Post
The water cooling is definitely pretty sweet, but would it be possible to simply cool it by air with 2 snorkled air ducts? By snorkled I mean 2 tubes attached to the sides of the case, run vertically then bent back downwards to stop any water from entering? Then, at whichever one is dedicated as the exhaust port mount a fan and draw air through the system? A fan is pretty inexpensive to replace and would be lighter than the rest of the system. Not sure it would draw less power though unless the radiator was already running fanless.

To Axipher: The RAD idea you put forth seems interesting, but wouldn't you have to mount the mother board upside down for this to work? The processor would need to be as close to the bottom of the box as possible, and removing the box seems difficult at that point.

Thoughts?
Funny you say this, because as of today this is the solution we are going with. We decided that in the interest of simplicity and weight, we are going to abbandon the water cooling and instead go with a dual snorkel design.

We have also decided that we will not be designing a new case this semester. The motherboard and power supply will be mounted on a flat piece of acrylic inside the box we have now. So, sadly, most of the work worthy of posting here is done. The rest of it comes down to programming.

I will certainly continue to post anything picture-worthy though.
post #218 of 254
Quote:
Originally Posted by littlebluefall1 View Post
To Axipher: The RAD idea you put forth seems interesting, but wouldn't you have to mount the mother board upside down for this to work? The processor would need to be as close to the bottom of the box as possible, and removing the box seems difficult at that point.

Thoughts?
Nope, I was actually reffering to basically expanding the fin array of the water cooling RAD, to the water cooling RAD wold be mounted horizontally with the fins attached to that, it might not to too much, but a little better then nothing.

I also thought of another option, since you aren't to worried about drag, what about running some thinner walled hose in and out of the water on the supports of whatever is keeping this thing a float. Kinda of like a mini geo-thermal system. This way you simple have CPU block, Pump, and hose. The tubing simply running through the water would probably dissipate quite a bit of heat.

If you still want to use the RAD, mount it vertically on the top and let the air just move through it as your boat moves around.
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post #219 of 254
Quote:
Originally Posted by kevingreenbmx View Post
Funny you say this, because as of today this is the solution we are going with. We decided that in the interest of simplicity and weight, we are going to abbandon the water cooling and instead go with a dual snorkel design.

We have also decided that we will not be designing a new case this semester. The motherboard and power supply will be mounted on a flat piece of acrylic inside the box we have now. So, sadly, most of the work worthy of posting here is done. The rest of it comes down to programming.

I will certainly continue to post anything picture-worthy though.
So what will happen to the water cooling setup? (just curious)
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post #220 of 254
spRICE is an opportunistic guy
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