I've been mentioning for a while how we've been collecting parts for a
kitchen under cabinet lighting project and today's the day so here's the old
lights which are halogens they get crazy hot under there as halogens do and this
one keeps coming out of its of its mount when somebody stacking stuff in the
dishes up in the cupboard up above the switch is kind of going intermittent and
they just draw a ton of power and create a bunch of heat so time for an upgrade
so in order to do this project we will of course need some LEDs my wife has
already chosen warm white from the assortment that I've shown that will
need some power here 12 volts two lamps that'll do
and then we'll need a switch to turn them on and off that one and some
connectors and a box to put it in and I think that's everything we're gonna need
so let's let's get at her these not that much electronics to do in this one it's
mostly mechanical there's a little bit of soldering but I'll just flow through
this I'm gonna put the switch in the lid of these of this box I'll just find the
middle oh my putting the day you know just score them just ease in the back of
the knife just because it makes a nice spot don't drill that out then on here
I'm gonna need power coming in from the adapter which is this guy and power
going out which I'm going to use these are all removable screw terminal plugs
they're easier when they're not attached these are designed for going on to a
circuit board but I'm not going to bother using one and of course I only
need two circuit so I'm just going to use two of these
three and leave the third one for nothing in particular so I'm going to
need to draw out roughly where these go and that one needs to be high enough up
that it doesn't catch on the bottom just
I'm not going to approximately these are going to be hidden under the cupboard so
if it's not beautiful it's not a big hairy deal then mark starting point
there and yeah what else oh yeah so this these lids don't screw on there just a
snap fit but they're gonna be being used for so hopefully at least 20 years as
long as those halogens were so I'm gonna screw the old the lid on which means I
have to identify where that is let's find it is convenient mark looks
like it's about four millimeters from there so I'll just make some drilling
marks on here as well the entrance corner and I'll repeat that all the way
around
all right well but clean up ubers and stuff around poles yeah switch it
through there nicely that shoots him there now I just have to open that hole
up you can't see that you have to open up that hole turn it into a rectangle Oh
try put the excess from the middle and then start applying some files to it
which is gonna be like slightly time consumed
there we go I'll just clean up the rough bits on the edge a little bit and I'm a
doll on the inside you oh yeah that leave a mess of a pristine work surface
that's okay clean it up pretty quickly hey here's a thing also crud built up in
there normally in the real world you'd use what thing called a file card I'm
just using a little brass wire brush it's nuts most of this crud out it's not
getting any metal filings there in there I'd need a more stiff brush but this is
handy and it does the job all right now we can start mounting stuff start with
the switch just because it's easy to flip that one around that little tab is
for walking into a hole if you want to put a hole in there to keep it from
spinning I don't care that much and I don't think I need the extra washer on
the back as a spacer I'll just lock it down here and then you notice the
scratches are visible on there for money and when I was marking it not entirely
concerned this is going to be underneath the cabinet where nobody they're gonna
see it unless you're literally lying down on the counter and if you're in
that condition I'm going to assume you two don't take care hey that's that
now this guy doesn't really have an orientation I'm gonna put it that way to
make it easier to sort of the wires on
but it really doesn't matter electrically just for my convenience
this would be better if I had a wrench or something handy put them to easy to
walk the ten feet and go get one okay
soldering time I'm gonna use some of this wire
mostly because I have it take a piece but that long this wire is the three
layer stuff that I bought to use with servos and sensors and things but it's
just convenient and handy as a source of stranded wire while I'm stripping that
down let's get this guy warming up and a little bit of water on there
again you could use a wire stripper I got in a circle of them around but
that's just as convenient you just have to hold it tight at the right spacing so
you don't Nick the conductors off now then which is Center which is positive
it's a think Center positive is normal on these things I guess I should know
yeah there it says right there can you see that
there you go Center positive okay so which one is I think the shorter one
that goes to the center but I want to check because so this is actually on the
outside yeah that's so that's the negative then it's the center pin pause
it okay so the short one needs to pause it off just be a convention I'm going to
make that the red wire it makes me happy
I probably could tune that to make it go through easier Zach that's what I shall
do you so disorder
yeah it's not a lot but it's enough and then know that it's tinned I can put a
little bend in it so it's easier to play with
get in I turn that bend into an actual hook flutter holds when I put it through
there I'm gonna do the negative first because it seems to be easier zoomed in
on this a little bit here I mean it's just soldering that's nothing that
exciting to see but it's wondering if I'd need to put a heavier tip on for
heating up these lugs that seems to have flowed basically so I don't have to
worry about it
I'd moved there no that's not hot on the tip on the fingertips at all okay so
split this guy apart the ground can go straight to there which way am I going
to put this and put it that way up and I think I will make positive this
side here I'll go ahead and strip that guy give
him a bit with tin again I keep going out a shot sorry about that
can you give him a little
Bend and just crimp him onto there or hold them mechanically so we throw some
heat at it
okay moved
when it moves while it's cooling that'll create a cold solder joint every single
time no then how long does that have to be just to put that long I could stay
with the falling through the wire but that's unnecessary I reason why I keep
sneaking back this way is because it's just easier for my old eyes to see when
it's over there unfortunately that's not the center where the camera is looking
well I am mostly doing this project for my wife I am also doing it for you guys
some what to can't find be like that Oh Tim Tim the pin put that onto there arey
Oh Nelly and that's going to go through like that and snip that in the middle
and solder the switch on and then this one it's actually double pole think
single throw double pole so if I use the center pin in one of the two ends then
one Direction's going to be off one Direction's going to be on and it's not
crucial to my application because it's not labeled I can flip the switch or
flip the lid around if I decide that I want it to go the other direction in
short bits of solder always getting knotted up
I didn't work very well get in there you there okay that's not
going anywhere no then I just have to melt that in there and for that I'm
going to melt let me use a whole bunch of hot melt glue from the backside here
okay while that hot snot is taking its own sweet time to cool off and do a
couple of other things thing to do a little bit of labeling just so that I
don't lose my mind or later
to do that go thing like that there on that side die
Green for ground red for hot yes I know negative it's not really grounded
whatever go with it here and then I'll do the same thing on there and this is a
keyed thing it can only go in one out that's hard you can only go in one way
up but still at a glance there it is I know what I'm doing
these are just powered off eight an AC transformer 12 volts AC 2.9 amps well 35
VA 45 watts no wonder they got likely to need these
again
now for reinstallation that is where these are all silicone Clippy things are
gonna come in handy I think yes I don't always trust that adhesive and use the
adhesive obviously it's there but I'll back it up with a few of those and any
wires that I have to tie down gonna use some of those there's not gonna be many
of them but okay so underneath here I'm just going to tuck that up close to the
front so to nobody get glared in their eyes but there are these little pieces
here I think I'm just gonna wrap that around this tight as I can I can and
then carry on so I think that's one continuous strip that's the plane anyway
we'll see how it goes
hmm ah that should help the help okay that's good one of these little saddles
you know there but you can't see it the alcohol should have a bat for you by now
so now are you going to stick it so far it's taking that's good sign this is
gonna be awkward okay I've got the strip mounted most of the way around like that
sort of focus it's a little awkward going on the corners I just got the last
strap to go at the end here just
yeah sure for that oh and what's the closest cut point is back there so I'll
go to the next one which is there and trim the length and then install that
the other thing that I'm doing just from a bill to push suspenders point of view
so getting a little bit of hot glue onto those saddles so hopefully it will hold
nothing drop down to my waist baking which of course becomes my problem okay
know that the hot melt is hardened up on this guy time to install him which is
gonna be all right about there which is very close to the old switch was but
since the strip is close to the front when we look back just a little bit
snap it in and screw them down and the last step is to find a place to solder
on the power wires onto the LED strip that looks like a good place right over
there
since I didn't want to bring my entire shop up here I figured it'd use the USB
soldering iron plugged into a power bank let him warm up is it dampened paper
towel I think it instead of sponge luckily strip this back and it's for
those of you we're gonna tell me to get a wire stripper instead of using my
cutters I've got one
positive is that one you USB soldering iron okay that guy in the power pack to
their into the wall tie to that cable operator and
very nice makes even illumination I don't have the three hotspots that there
were with the halogens and they're not just hot anyway cuz they're nice cool
LEDs quite specifically there we go I think that's a well done project at
least by my standards anyway and I guess we'll see if it meets with approval
thanks for watching if you have anything to say comments down below I will talk
to you later
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