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what you're looking at right now is my chiller i got it for myself 15 years ago

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as a birthday present and with a little bit of teenage engineering i was able to

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achieve sub-zero CPU cooling with an

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overclocked e6600 at 4 gigahertz 24 7. i

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took it with me everywhere even to lan parties and it remains the most potent

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cooler here at Linus tech tips but to say it's sketchy would be an

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understatement we've got sharp edges

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we've got no grounding we've got an extremely dangerous exposed capacitor

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and it also doesn't look too great but today that changes no longer will we

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have to cart around the ugly carcass of an air conditioner to cool our computers

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because now we can cart around the ugly carcass of an old air conditioner

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in a fancy enclosure this

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is the chillinator v2 let's get to building it

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you can tell it's already better than a mac pro because it has wheels that lock

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check out the ecovax debot osmo robot vacuum on alibaba.com they've also got

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their march expo 2020 happening which features more than 35 000 global

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suppliers online of course check them out now at the link below so i'd like to

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say that we have a really legit complete plan but we really don't so basically

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the idea is you know hot side here cold

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side here some steel that you have in your hands we cut it weld it and

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hopefully it all fits together how does welding work

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the easiest way to describe it is you're just pushing electricity in well with

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aluminum we're pushing it both in and out of the material so

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we're just throwing lightning at things really i

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know i know some of you might be confused did he really just say that

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welding is throwing lightning at things

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well let's look at how welding actually works so you can go from a regular bruce

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to a zappy zap and zeus see mastering

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welding much like mastering the kama sutra is more about careful balance and

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making sure everything is clean than pure power

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when exposed to the air the molten metal in a weld can react with the oxygen

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nitrogen and hydrogen contained in the atmosphere become very porous and

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splatter all over the place the same goes for potential contaminants on the

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surface of your metal if there is grease or rust on there your welds will be more

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splattery than dad's sunday bacon but not nearly as tasty to get a good

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arc weld you need enough current to melt the metal but not so much that you blow

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clean through you need proper shielding gas coverage to prevent air getting in

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and also loads of practice if you want

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to know a bit more maybe watch this video by this old tony he might not be a

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professional but in my opinion that whole accredited schooling thing is

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a bit of a racket anyway when you're welding you need to cover

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all your exposed skin uh anything that's not covered will get sunburned and

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it's not fun particularly in january so this guy when it senses

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an arc will darken automatically to whatever shade i decide i think you

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should go away now i don't want to embarrass myself well colin's back at the shop getting started

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on welding i'm heading to the metal mart and getting some aluminum it's all going

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to be cut to size so we should just be put it on either riveted or screw it

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depending on which one it is and her job shouldn't be all that hard

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at least as far as that's concerned so we just got some tig rod that's the

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right size for the welts that we need to do in the steel

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and they didn't have any general purpose stuff there

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so we now have the premium grade stuff that's normally used for offshore piping

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and nuclear power plants so what we're doing before

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we actually push the whole thing together and weld is we're just tacking

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everything so this means we're putting little tiny dab

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welds on all the joints and we're going to tack it all together

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loosely and if something goes wrong or we screw up an angle we can just tap it

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out or we'll cut it then once we're happy with everything we'll go back and

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actually finish weld everything now to do that we're using welding rod and a

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trick my old buddy dave taught me back when i

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was young is to put a little bend like this in all your welding rods so that

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way when it goes down on a table no matter which way it lands you always

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have something to pick up when you have welding gloves on

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i'm lacking in clamps we have a box

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it's nothing too incredible like it's not the straightest

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box in the world but it's actually not moving around right now so it's really

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not that bad we need some better clamps to get everything at perfect 90 degrees

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but uh whatever next time the router's

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about to make us the holes for all the fans to go in i want to cut some LTT

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logos in it so it looks you know pretty cool this tape that we're using is

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actually supposed to hold carpets in place so i just did the math we're going

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to get about 4 000 pounds of force to

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lift this i don't think it's coming off i think

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this looks awesome now i just have to be careful not to you know bend the whole

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thing while i try and get it off i'm just wiring things no one's interested

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in wiring things there's a hot side there's a neutral side they they go

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together that's it i pulled a bit of an engineer on you in the sense that i drew

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something in solidworks right clicked it hit weld and just didn't think about it

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again this has been rough uh i went through

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probably half a pack of tungsten's

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experimentation throwing things across the shop getting angry storming out

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coming back in trying again storming out and

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i figured out my issue i had a little bit of a gas coverage issue i had choked

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out too far on the uh tungsten and now i'm actually making semi-decent welds

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but are we leaking i don't think so nope oh i did it so heavy

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the biggest problem with the current you know this is the chances of getting

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electrocuted if you get anywhere close to it you touch that you touch this you

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know water spills out onto the table and you touch like the table

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you're done to take care of all of that i got these wonderful terminal blocks

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they're really overkill but these are going to handle like live and

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neutral and then ground we only have one ground

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lead so i'm just gonna put that right to the chassis here

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the thing that really is going to save our butts though this is a ground fault

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circuit interrupter or gfci this is kind of like what you'd find in like your

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bathroom you know the one that's annoying that always does the pop thing that's so you don't get electrocuted

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basically how this works is that it's constantly monitoring the current

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going into the live and out of the neutral so

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if it sees that there's a difference between those two it means that maybe

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current's going like between this chassis and my body in

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which case it's like pop and instead of me getting electrocuted i

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just need to go over and hit reset electric boom has a really good video on

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this if you want to figure out how it works a bit better but

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this should save our bacon in the case that something in here leaks

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we're gonna have to bend these a fair bit to get this in the middle but worst

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case scenario we vent a bunch of you know dangerous gases into the atmosphere

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and i was thinking that we would just reuse

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these rubbers but the problem is that they're they're kind of they're kind of

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used yeah you don't want to reuse rubbers no that'd be bad

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might just be the easiest way to do this yeah that's kind of what i was looking

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to a little bit too much wobble rubber is just a little big

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i think uh we're gonna no you know what we should just get some

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bigger studs studs for your rubbers yeah

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yeah so the plan was to use some power switches that we had just laying around

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but while i was out to get this big old terminal

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i also got two of these guys functionally it's no different but man

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i don't know if you can hear that but like it just feels so good

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it's pretty funny seeing Linus's angle grinding skills from when he was

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just a youngin kind of could have really used some deburring i

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think that'll cut ya

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to mark out the holes here i've just gone and measured everything from these

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two edges because i know that they're although maybe not perfect they're

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better than the ones that i did with the angle grinder we'll just do the last one

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here just use some layout die and the

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the cheap calipers to scribe everything and then we'll just center punch and

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drill it i've made a plate that holds the

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compressor and we're going to make sure that the stud

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pattern fits before i take weld this all together and we start actually

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making mounts for everything that's going to go in the box that we made

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so i'm just going to measure confirm mark out then we'll tack it through weld

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it and uh we'll put the plate on it done pump mound yup fan cut out almost done

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panel no weld is done tubing can

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yes yes RGB definitely it's 5 30. okay we're

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supposed to go home now this is kind of like the speak now or forever hold your

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peace moment i know you and i had discussed the inlet and outlet and there

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were two key items so does the is the pump oriented this way more like this

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way so yeah we need

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a port here for the inlet of the pump is that the

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plan yep perfect okay then the coolant needs to come in

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here that way we have the coolant flowing across the

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evap um because what i've observed is that if i

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have it configured the other way which i have actually done in the past just to experiment with it it really does cause

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problems like there's a significant difference in temperature across the two

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sides of the tank and we're gonna have two switches one for the pump one for

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everything else yep okay are we gonna have a temp probe

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separate from the one for the thermostat

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that's just into the water and just has a readout i wasn't planning on it but it's pretty

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easy to do uh this is gonna be insulated

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yes yep cool i would probably have actually a lot of my airflow coming in

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uh right here and then the pump also needs cooling so

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i would probably have it coming in here but then not

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over here where all the cold things are all right is that all you guys needed me

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for yeah sweet what are you doing

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did you get putty no i don't know where the putty is

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how did this happen why did it start i don't know oh god it's a tactile failure

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i know well

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i made a boo-boo by pulling this thing in and out of the chassis like 15 times

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we fatigue failed the tube and now it's

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leaking all the refrigerant atmosphere sorry mother earth all of that

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refrigerant is now gone so we need to get it recharged or remade or i don't

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know buy another one things are bad

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about two weeks ago i thought this project was totally done we spewed r22

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all over this place which is bad for the environment and it turns out r22 isn't

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exactly easy to get because it's really bad for the environment i thought we

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were done but it turns out that brian here just has 22 pounds of it just

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sitting around uh 24. surprise i do refrigeration now

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yeah so now we have to tap these valves onto here pressurize it

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find out where the leak is fix the leak with acetylene then fill it with r22 and

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we'll be good this here's the point of the build where

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we know what we have to do you know what we have to do so it's just about getting

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her done i actually haven't seen this in quite some time you guys have uh

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made some real progress here casters aren't mounted yet nope do they lock

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yes hey and it's ahead of the mac pro already got him yeah we still have a bit of time

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to you know change things around so that's why we have the Linus review yeah nicholas

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really killed it on the little knobby chum there i like it it's beautiful

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fundamentally here's how it works our old air conditioning unit has its

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compressor it's got a hot side and it's got a cold side so these fans cool the

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hot side and the cold side sits immersed in this toilet plumbing

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reservoir that we've got right here then we've got a typical water loop

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except that it's going to be as cool as nearly minus 30 degrees celsius so this

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pump right here which is validated for use with the obviously not water coolant

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that we're going to be using probably windshield de-icer it's going to pull

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that fluid in here then it's a simple matter of plumbing it up to whatever

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computer it is that we're trying to chill these switches turn on the ac and

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the pump independently that's really good because if you want to just like make sure the

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ac is working and everything get the coolant chilled that's nice and then if

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you want to run your pump later that's pretty cool turning off your pump

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it's good stuff this dial is actually part of the original mechanism so it's

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just a good old classic super analog

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thermostat doodad so we chuck that down there and that'll automatically turn our

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compressor on and off depending on how cool we want our coolant to be and

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that's where my questions start have you guys given much thought to condensation

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in this thing everything here is going to be insulated and it's all along the

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bottom and then there's a drain port down on the bottom here this is all

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going to be insulated so hopefully it doesn't get too bad but if it does at

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least you'll be able to see you know water coming out of the drain port instead of water getting to the

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electronics on the other side how are you insulating this spray foam oh yeah

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the RGB was such a pain like look at all

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of the cabling that has to be there jammed in there sophisticated jank i'm

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not a fan what were you guys thinking here uh what do you mean this like gooey

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crap why did you why did you put a hole in the reservoir why didn't you just

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bring it in from the top well because it's the thermal probe it

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needs to be able to get the coolant temperature like in the middle it's also

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a tapped hole it's like a thermal probe that's threaded that's like put through

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okay are we ready to test yeah oh boy

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i don't see it going into the tubes which is making me a little uneasy

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because this is a lot of water that i'm pouring and i don't know where it is

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oh this is a really big tank yeah you guys should have done a smaller

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tank why should we do a smaller tank uh more thermal mass no no no that's bad

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because it takes way longer to cool it down oh

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well it's smaller than the other one

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so the good news is it definitely

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primed the prompt oh it's also leaking yeah it's also leaking the point was to

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leak test it well you know leak test it a bit well yeah we leak tested it it

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failed we'll just you know let's make sure all this electronic stuff is not

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too close to it yeah it should be fine yeah okay so wait so the fans go on

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immediately there's no switch for them i figure that you just always want RGB

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that's fair okay so uh we should hook something out

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up to this yeah okay

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well that seems to be working all right i'm gonna go grab some

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fittings for the brb we don't gush too

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much water while we put them on yeah i guess that if you wanted well i

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get those you could always try and you know stop the pump from leaking oh i put

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a cloth there good job after brian did the repair you guys checked and made

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sure the hot side gets hot and the cold side gets cold right yeah like i sent

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you that picture of the cold side getting all condensation right

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we tipped it

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oh yes do we need to wait you shouldn't tip a

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compressor and then run it again immediately i think it has more to do

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with the lubricants and oils or something i'm not an expert i just know

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that you're not supposed to do that brb all right well i guess while we wait for

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the compressor to do its thing should we drain it

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all right here it goes

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you can probably just put it on the ground yep

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it's quite the flow we have yep it's training so we left it for a

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few hours let's see if the ac works

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it works way better if you plug it in

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i redid all of the electrical in here it's way less sketchy look at this it's held in with zip ties now

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cool i think it's getting cold i could be

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imagining it i am fairly certain it's getting cold it's also grounded now

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remember last time i was just like dangly mcdangling i see that capacitor

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is still just hanging yeah the capacitor so but it's like you know it's mostly

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hidden i love that we spent all this time and money on this thing and it's

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still jank maybe that was just its destiny it's way less jang it's

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less scary oh good god

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okay that was a bit of a miscalculation the point was to leak test it we can't

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leak test it when it's soaked oh is that fitting dripping i don't know it's

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covered in water so i guess we could also test the pump

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right yeah ready and one two three

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well that did its job pretty fast yep

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for better or for worse this is the new and improved chiller

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yeah do you want to describe the final

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product right now i would love to everything i'm saying right now is a

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guess but i imagine a gorgeously painted

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monolithic cube of cooling prowess

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with a massive four gallon reservoir

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industrial switches for independent control the ac and pump a thermistor

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port so that we can measure the internal temperatures of the reservoir and of

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course a gorgeous pink temperature control dial all held in place with a

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pristine combination of zip ties electrical tape

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and hook and loop straps lttstore.com fundamentally what we're

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looking at is exactly the same thing that i built in my in-laws backyard 15

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years ago but with a degree of refinement so now

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instead of carrying it around in pieces and risking slicing your hand open you

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can carry it around as one big piece and

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risk slicing your hand open but at least less risk of slicing your

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hand open and no exposed capacitors so hopefully we're going to be bringing you

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guys some great sub-zero

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cooled projects over the next little bit here with this thing and if not well it

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can always sit in the indiana jones warehouse until we finally do need it

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because we actually use it like quite a bit sometimes yeah

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i'd say quarterly the deebot osmo features carpet detection technology

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which allows it to avoid your carpets while it's mopping and increase suction

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for a deeper clean when it's in the vacuuming phase it's programmable to

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schedule cleaning custom modes you can even set it to use extra water for the

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mopping process it's got up to a 200 minute run time and will return to its

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base to charge at the end of its battery life

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alibaba.com offers a wide variety of suppliers all over the world from the us

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to italy to india and even more remember to check out the march expo 2020 on

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alibaba.com for more than 300 000 new

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products we got to give this a crack with the 64

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core threadripper oh yeah yeah that's the kind of thing that can

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justify a 1200 watt cooling system