why hello there you didn't think you'd ever see this
puppy again did you the third installment of nextgen desk pc
is here and guys we are getting so close i can taste it
oh sawdust disgusting
but that's okay because it only needs to look good and
have top tier performance flavor is optional
so this time the reservoir is finally for realsies done
the parts are mostly all here and it's
time to put it all together and make sure it's actually going to work
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now i couldn't help noticing that other than the res being done this looks pretty much the same as last time
it's changed a bit so let's start with the res it's been redesigned again now instead
of being a three piece design it's a four piece design the most failure prone
part of building this thing is drilling and tapping the g1 quarter holes the new
design does nothing to make acrylic less brittle it just is right but if we can
do that brittle finicky part before we
invest a bunch of time etching and cutting the 18 millimeter
thick acrylic ring at least it's not so heartbreaking
when it breaks the port arrangement has also moved so
we've gone up to three ports from two and we're gonna talk about that a little
bit later it looks freaking
awesome though this exceeds my expectations for
what we were going to end up with here
and it's full of water that was a challenge sometimes you fix
one problem and you create another and moving to a four piece design makes
o-ring ceiling way more difficult i thought i could maybe get away with uh
acrylic solvent welding the whole thing together but
it's a one-shot deal mom spaghetti so
yeah i mean the small test chips look great yes the
bigger test chips leave a lot to be desired i think the
client would probably send this one back to the
kitchen if it looked like that that means we're back to using o-rings from
cord stock we have to make sure to tighten them evenly so they can press
more or less equally the whole way around now the yellow
um ooze yeah that's o-ring lube
it's like vaseline essentially i needed every chance i could get to
keep it sealed because the laser leaves it a little bit rough in the grooves
that i edged it yellowed a bit with water who knows maybe some water changes
will help fix that truthfully though i wouldn't have even noticed if you hadn't
pointed out to me before we started shooting so i don't think that's a big deal and that concludes the scripted
portion of today's video let's assemble a computer let's do it got our new LTT
store flask design here just pop that baby open and give it the old you know
all no no
see you later thanks to ek just littering us with
stuff ugh
uh what can i work on i do you want to make some hoses and stuff the fittings
are right behind you they're sitting in the blue bins oh there's your fittings
um this guy is going to be just a dumped
a tank and it's pulling out of here
okay i don't know how i didn't notice this before but this is a very unusual
graphics card it's clearly an NVIDIA reference pcb of some sort because it
uses their little weirdo 12 pin connector
but instead of having the terminations for the g1 quarter fittings up here
they're at the back and more like a kind of like a more server friendly
orientation but it's an rtx 3070. yo dog i heard you
like fittings so i put a fitting in your fitting there's no there's no tube going
here like that's it that's going there which means
and this is bad news this has to have a mount because it actually
needs to come up a few millimeters
do you mind supporting this a little bit it just uh happily feels kind of off
angle and then it's really hard to ah oh this hard line run is going to be
an absolute nightmare there's no other way to get it in and out of there now i
kind of wish we hadn't cut the holes yet because we could have turned the drives
around and kind of gone this way if we needed a bit more room to move the side
okay so right now this is perpendicular to the edge of the desktop that's where
we want it um so that would put this like this
it's it's not yeah it's a little off it's a little off
okay so this has to go like this which means we have to have
some soft something somewhere in here yeah let me try something here i'ma try
something ladies and gentlemen got a 90 degree fitting
oh she goes we're not out of the woods here
yet though because here's the thing just because your right angle fits
doesn't mean your fitting fits oh boy that's that's ratchet no oh wait
wait
and then a right angle okay
okay i don't know about using these hard line fittings to be honest with you
they're just really junky and they're going to make our lives more difficult
we can use something else oh my god why were you why were we even talking about
using these ones this is but what do you think cross-sectional
diet like area come on this
don't wreck my res i think it's okay actually okay
that is so much easier to deal with okay
do you think we can just get away with not having any of that it rubs
well it will only rub once yeah but
we're gonna have to try to put tubing on here and stuff do we want to try and put
the fittings on the underside here so we can put the glass on i already put
fittings on it i've been out like grabbing fittings and
he's just been working away yeah and they actually like yeah that
actually like works great because they it holds it at almost exactly the right
height it's real close yeah i mean it's kind of nice though like to bring your
graphics card up to the level of the desk so it's like sitting right under the glass
colin if you hated the snake off the CPU block you are going to double hate the
snake off the GPU block oh man
how many o-rings is it in like 12 inches
oh god one so many two three
four five
six seven yeah i mean a o for or what could go wrong
over oh
are these posts not straight there we go okay mint it's gonna have to come off
again to put thermal paste on it yeah yeah that's fine we're just we're experimenting so we'll just do a 90
degree like it's a ultimate hard line yeah all
metal all metal water cooling can we do that we should we should do that i think
it's been done we're trying to figure out what the best way to get the tubing
cleanly in and out of this pump is and i i think that's going to be it this run
is pretty much straight straight and this one should actually be pretty
much straight too we might have to sneak it pollen again again
it's okay i already got one this is a mess
i thought it would be so much cleaner
yeah me too
that's her that's your i call this the weenie boy
it's not about the size it's about the functionality all right
yeah whatever you tell yourself yeah yeah so one thing we haven't discussed yet is
uh that oh shoot yeah don't leave it there
for aesthetics but we could shim the desk up a niche nope okay what's worked
for me all good yeah no it's old
not necessary oh wow that would actually not be that hard to do yeah it's really
like put a shimmer oh okay damn it
wow yeah before you told me how simple the solution was
not counting the o-rings that are in the reservoir
there's over 50 o-rings in this loop oh
yeah we didn't even count the ones in the blocks oh yeah and in the pumps give
me your odds that this actually stays pressurized ten percent
this is a big loop yes
it's leaking this one's loose
damn i was hoping it wouldn't be one of mine it's holding
it's a living i mean one out of 50 ain't bad
that's 98 good
unfortunately in a water cooling loop 98 ain't it chief
i don't know i hear one no it's leaking again hold on hold on a really good way
to check where a leak is coming from is to use some soapy water you'll start to
see bubbles where the air is escaping the system there's not enough
o-ring crushing going on right here see that andy how you can see the o-ring
being crushed here and over here but not right there so that would explain how we
had a little spill here the bad news is that we'll significantly delay our test
of the whole loop the good news is that should be a relatively simple fix with a
thicker o-ring call and i found it oh there we go
well that might be it dog i haven't tightened these since i originally put
it together like a week ago and it's been holding water one thing to note is
the acrylic that i used is cast so it's not very level
um it's actually there's a 0.8 millimeter difference in thickness
across the entire thing so you're really taking these unflat things and trying to
smush them together now this side
you can see the leak andy can come have a look yeah yeah all right so why don't
you finish doing your thing then and then i'll pump it
i probably won't be able to tell because it's all the way in there
there's definitely one like up here there we go
i heard it stop we gotta get to the green zone colin
take me to the green zone
see that one popped yeah but it's it's tight
it seems like the top one is not the main problem it seems like it's the
bottom one once we're getting through all those layers struggling yeah we have
uneven thicknesses pressing down on an o-ring we're holding pressure now yeah
and we're right on whoa whoa i didn't even see that
that's a bomb
safety glasses there they are
oh the viewers who might not have noticed what colin and i noticed it now
has a domed top um so colin this might
be good news though i i did good okay i've made a pressure vessel because yeah
because if this thing if water doesn't leak then it doesn't
necessarily need to pass this pressure test but it did
sort of kind of yeah i mean it's it seems to be holding yeah can we vent the
pressure now this is scaring me yeah we can vent the pressure yeah let's go
ahead and just do that
is it deflating yep it's hard for me to tell from here
oh do you hear that creak oh my goodness that was um okay
this is something different ultimately what our test failure means
is that we're ready to rock because now that we've depressurized it i'm
confident enough to fill this thing with water so there's still a few decisions we have to
make though this pump for example could be relocated we could go straight into
the inlet here or we could rotate it 90 degrees and go into here or here so that
we can try and get a nice perfect 45 degree angle between where the tube
comes out of the pump and where this comes out we can use one of these fittings right here just to make our
hard line lives a bit easier and over here
this just isn't going to work because this is going to be like
eight nine degrees off axis it's going to look really horrible
so what we can do is we can take this one and go out 90 90 then we'll do just
an l bend here and then we'll use one of these
one of these fittings but a 90 degree right here and we'll go right over to
here so that means this might actually move up here to give us a bit more space
to work with and we can keep the angles all looking nice because anything other
than a 45 or a 90 degree turn you have to do it with tubing and there's not
enough room to put tubing here but that's it
it didn't blow up and for once when i say that i mean it
not like metaphorically or like no no it just literally did not blow up which is
good oh we need a water bottle uh
lttstore.com we just gotta go there and get one yeah um shipping might be an
issue actually i have one of the uh water cooling loop fill bottles right
here but i got a bigger one oh he's got a bigger it's not a competition colin that's what
you think okay i just want to tip it a little
yeah i mean if we tip it all the way it's everything will go flying yeah okay
it will be yolt which is the past tense of yeet okay so let's be
gentle this is not exactly the thickest wood
okay okay hold on hold on we have the technique
so nice why was it so high before because i wanted to work up here
that's the whole idea okay
please don't make it ah
i'll take the funnel thank you no leaks so far colin even though we've filled it
up to the point of one of the leaks before good
that puts us at a liter and a half so far
with more to go uh oh god okay yeah you gotta uh you
gotta turn it on i gotta turn it on yeah for those of you just tuning into this
project now we're using these two ac to dc 12 volt converters here the gray ones
and then they're going into a dc to dc power supply from uh hd plex
okay i'm gonna like have my hand on the yeah yeah good thought at least one
pump's going yeah interesting come check this out
andy we've got like little micro bubbles coming out here it just needs to get
properly flooded is this one even spinning
yeah yeah it is okay what's our theory here why
why is this pump not our theory is we don't know let's try
shaking it shaking the table okay going forward
let's bring her down see what happens let's try power cycling again
hello oh okay yeah that's way better oh yeah
okay this does not bode well for filling it when everything is bolted down though
uh hit it again okay
oh yeah now we're getting some power
i don't understand why it's not pulling from this inlet though
there's bubbles moving here
they are not coming out here well they might be getting stuck up here
actually we're getting a little bit look micro bubbles yeah so it's ingesting
them through the pump yeah they're getting shredded in here yeah okay so
let's top it up a little so actually if you look at that we've
yeah we've ditched a lot of bubbles
yeah check this out hey andy we've got pretty good coolant velocity oh look at
that yeah like we're moving now
this wasn't as easy as i might have liked but it's a lot easier than it could have
been can we call it a success great success
let's see what's what's shake a lake in with these i'm glad we're doing this
test fill before actually trying to okay these are definitely very bubble
full so why don't we take our boxes again
and let's tilt the table tilt the table this way and then we can fill this
and see if that works thanks
uh oh a little more is that okay uh yeah okay you're good
we good now all the bubbles should either rise
up to here or rise up through here oh there we go yeah okay so now that the
pump is off the bubbles can come up through here so it should start sucking
in here it's definitely still circulating
so if there's circulation it has to it has to be pulling through here now does
it look like it's pulling it doesn't look like it to me so it just looks like
the flow rate is a lot faster than the little amount of bubbles
i can see wait so that's it that's it yeah
good news colin all of our leak points are not leaking yay so it turns out when
you don't inflate it like a balloon it's watertight
try anything once that's what i say how adventurous
actually i usually say try anything twice so maybe one more time for that
holy schnikeys i think it's working let's uh let's see what our temps are
because i have no idea how good this block is even yeah temps 38 fun CPU
right now okay that's perfectly reasonable for idling we are still
spitting a lot of bubbles out like i don't even understand where they're
coming from at this point we are going to have so much extra footage for a
Floatplane exclusive in this one by the way make sure you subscribe to
Floatplane we've got behind the scenes meet the team cutting room floor stuff
and we try to do early access oh you look at that 32 course not bad
yeah yeah everything's looking okay everything's showing up
now all we got to do is paint it hard line water cool it get cable mod cables
so it's all custom and gorgeous RGB lighting
and then i get a new desk then you get a new desk
your first stand-up desk you're kind of finally getting with the times i know
right yeah oh i'm so excited no one will ever whack their leg on the
side of my desk again and it's a i think it is actually a size increase from your
old desk it's like a foot deeper or something and uh you'll have more room
for your monitors nice even though like if you put them here they'll be
completely unsupported yeah minor details i think the
motherboard can probably take the weight yeah totally
just like you guys can take the weight to the next video
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up if you guys enjoyed this video maybe go
check out i'll go check out the previous part because especially the render one
where we show the vision it's great and
you can see it's changed a lot