you can't have computerized numeric control without of course a computer and
while the Linux pc embedded in the door might be weak the mill that it's
attached to is capable of chewing through solid titanium
but to help but to tell the whole story of this
amazing machine i need to go back in time
in time in time
in time today's video is brought to you by glasswire are you worried someone
else is using your wi-fi glasswire can alert you anytime a new device joins use
offer code Linus to get 25 off glasswire at the link in the video description
we've all been there you bring home your new furniture from ikea spread
everything out on the living floor and go living floor kill me spread all the
bits and pieces out on the living room floor and go what the heck was i
thinking skimping on the assembly service well this video is that but on
steroids due to covet restrictions tormach is not offering on-site setup of
their cnc mills which means we're going to have to assemble it ourselves all
2629 pounds of it so what do we do we
just kind of go for it or what
i mean hold on a second this is why we can't have nice things oh
god he's been so excited to build this thing so much it's just been sitting
here for weeks all right have fun see you later now i get to do the fun stuff
so let's get a look at my new mill
oh that's my timer i got to go get my copic shot and it'll take us this long
we're back okay
hello that's my new toy it's a tormach 1100 mx
it spins up to 10 000 RPM it is an absolute unit so these are the chip
trays these are what hold the chips as we're machining it catches the mess
which our router doesn't do a great job of already
and they are big
that's a chunk of metal
it's been two weeks since we started working on this machine we have to put
all the sheet metal on the machine we have to hook up the pc we're gonna put
on the tool changer and we're gonna get to play with some lovely machined parts
and we'll come back once it's ready to actually start moving again
everything about this looks really expensive yeah
look at these yeah these are all balanced to go up to 10 000 RPM how much
did i pay for these well they also sent a bunch of pretty carbide that is a
sharp boy uh yeah so that's a three flute high helix aluminum finish wow
yeah don't do that everything in here is now turning on and ready
well no i mean you you told me these
things don't stop for nothing so
ta-da i'm not saying moving on why something's
funky with why it's flashing green i bet you i didn't tighten the collar enough
on the y-axis motor and i bet it's just spinning one of our new engineers is
laughing at me kind of you know marveling at this knows i have no idea
how to operate it here's something i know a thing or two about okay computer
mice the ergonomics of this thing they could be a little better the finest
silicone sheath over top of the most generic chinese mouse
hey i'm covered in my chips this is this is fun but uh go flick a switch
tool changes how do they work okay let's fill it with coolant
oh oh that cooler pump's been running dry
this whole time did you plug it into an accessory rather than into the coolant
pump pump oh my god yeah okay well that might have destroyed
the pump okay is it in the coolant one now
okay
now short of pulling off the CPU heatsink which appears to be glued on so
i'm probably not going to do that we have no way of knowing exactly what this
computer is other than that it's running four gigs of kimtego RAM it has a 64 gig
pci express SSD another mini PCIe slot
over here and a sim slot and then this
is a funny one it's got about the banginess speakers that i've ever seen
in an embedded machine but there's a good reason for that because when this
thing is running it can actually get pretty loud so if it needs to make a
noise that you actually need to hear from inside this sealed enclosure
because that's pretty much the way to do it honestly though this little Linux box
is not the most interesting part of the
computerized control coming past our missed coolant reservoir we've got ah
here it is and it goes
so here is the 220 volt transformer so
that's where power gets transformed into all the different voltages that we're
going to need here is oh this thing is super cool this pretty much what it is
is a gigantic ceramic resistor with a heat sink on it and what it does is
whenever you want to stop the spindle spinning you actually need to take the
power that the spindle would otherwise continue to generate and get rid of it
somehow so it's just this gigantic resistor that just
stops it right dead on the topic of spindle control of course we want to do
more than just stop it and this puppy right here is our spindle vfd or
variable frequency drive you could think of this kind of like a pwm fan header on
your motherboard that can make it run at different speeds depending on how often
it pulses power except on absolute freaking steroids so we can drive the
main spindle at up to 10 000 RPM and all the way down to what 100 or something
like that fancy the rest of this is cable
management a variety of breakers and relays here's another power supply and
that leads to this puppy right here so this you could think of as kind of like
our secondary brains of the operation and what this basically does is it takes
whatever signal comes out of our Linux computer at the front and turns it into
something that all of our motors can understand so our x y z we'll all get a
signal that they can interpret from this this is probably our best look at the
clearpath servo motors that drive the x y and z axes so compared to stepper
motors which are what we use on our cnc router they're not as torquey but they
actually know exactly where they are rotationally so it can relay that
information to the computer the computer can say okay i know exactly where this
other one is and you can actually have the motors work together we could
actually hard mount our tap and then we could have both our z-axis and our main
spindle work together to just drive it in tap the hole take it back out and
we're done i actually lied a little bit this one is not technically a servo
motor it does have the same magnetic array and the same hall effect sensor
that allows it to know exactly how many times it's spinning and where it is it's
just that it sends that raw data over to our computer to process rather than
having an onboard encoder that sends it out sorry however they do it tormach has
another even more important reason for needing to know the exact position of
the main spindle and that is for tool changes now on any normal cnc mill you
would need to be able to change out your tools because you might have a different
size bit or a different function bit that you need to pop into the main
spindle so the way you would normally do that is you line up your little doggies
uh oh there we go there it is look at that
and then you press that again hey
look at it go but this one is special
this puppy has a carousel that can hold up to 12 different tool holders allowing
you to do complex jobs with the tools automatically changing so what it'll do
is it'll line it up exactly where it's needed the tool changer comes in grabs
it spins around pops another one in the whole thing is pneumatically driven and
the whole job just nice goes so cool of
course none of this does anything without the computer to control it we've
got a pretty sweet touchscreen interface for it but whether you're running
touchscreen or a spongy mouse and keyboard you're going to be running a
version of linuxcnc called pathpilot and one of the coolest things about
pathpilot compared to mach 3 the control system that runs our router over there
is that it actually runs at the speed of the processor with mach3 you send a
command to the board that then processes and outputs step and direction signals
to move the motor that means when you hit stop on the router it still has to
process those extra commands before it even sees the stop now you can emergency
stop it but doing that means you kill power to everything and you have to
re-reference the machine which is a big boatload of suck on the tormach if you
hit feed hole in a program it stops and we'll show you that but first just i
want to kind of play around with this thing a little bit so if you want to set your your rip ems let's do five thousand
meat huh we can stop it and then we actually put in just a little simple
program here so it's just moving this back and forward on the x-axis and i'm
gonna go
let's stop and reset and show you guys something else that's really cool though aside from the tool and making sure that
the path it's going to follow is right the main two things you need to concern
yourself with when you're cutting different materials are the speed of the
spindle and then the feed rate as the machine moves around on all the
different axes while some piece of metal
might be really consistent from one sample to the next a material like wood
it could be all over the place and you could go yeah 2000 is usually good but
why don't we try turning this up a little bit and see how it goes you can do all that without changing your
program and you can do the same thing for your feed rate as well so if i stop
this and i start my cycle again
what of course you can have all the precision in the world up here but if
your part is not held in place extremely securely you're just going to end up
with a giant mess and that is where this comes in so this puppy
right here is absolutely covered in these threaded holes that have these
super handy little plastic inserts so what you can do is you can take say okay
we want a mod vise here which is really cool because it can hold on to just a
sliver of your material so you can work on one side then just like shave off the
back we can put a regular vise in here we could put a fourth axis in here and
then what you do is you tell the machine okay i've got this offset for when i'm
going to mount it in that thing and without redoing your program re-zeroing
or re-indicating the machine you're ready to free king go now one of the
most useful things that you can do with this feature is you can add an additional
axis neat right so unlike our cnc router
which is perfect for making two and a half d parts the new mill here is four
axis this is an a axis which is a rotational axis along the x-axis so you
could take apart and you could actually roll it and work on the sides or on the
back without taking it out and repositioning it super neat oh yeah this
is a perfect example of the kind of part that what with maybe two or three resets
you could make in a setup like this the bike pedal so colin's old job that's
okay he likes his new job better debatable so as fact
what does this go for it's like 35 40 grand 35 40 grand somewhere in there
which raises the question why does a machine like this
cost like it does most purchasers of something like this would be using it to
make money and there's just a higher tolerance for cost when it comes to
money making machines and as everyone knows money equals time so it comes down
to what features it has that makes it faster and easier to use and that's
where things like that fourth axis come in i mean being able to work on multiple
sides of a part without going in and painstakingly moving things around and
re-zeroing that's money right there of course for us that's not
really the plan we're just gonna use it to like make cool stuff for our videos i
guess we should do a demo right yeah let's make some chips okay well first
thing safety should never be run
without that closed and you guys are going to see why in just a moment here
so this is cool it uses like an air blast to clean off the tool before it
puts it back in the tool changing so which one should i use to hack up that
aluminum block they're all good for doing that okay so what do i so now if
you use the arrow keys on the keyboard you're going to jog up and down is page
up pitch down that's really user friendly
now you might think wow gee you're going to run out of coolant pretty fast there
rick but it all collects in this little filtered reservoir on the bottom and
then it recirculates it now normally we wouldn't have it in like flood mode like
this for making videos but that's where the mister comes in i'm not gonna plunge
it straight into the thing i don't trust you man come on colin give me a little
bit i mean technically it's your machine oh there it goes boys see you later
middle look at the metal shards at the back ladies and gentlemen
you want to clean it up we got we got tools for that Linus
ah sprayed me how many thou is this thing accurate to i mean i haven't
dialed it yet i think the spec is two tenths of a thousand four tenths of a
thousand it's like there's no burness there's just it's not even wet it's like
because it's non-porous you made a clean surface so you can blow literally all the coolant off of it we switched the
plugs in the back we are now in misting coolant mode here comes a misty boy do
you want to position it just the tip and only for a second and only what never
mind oh wow that's pretty wimpy isn't it it's called minimum quantity lubrication
so it's just enough coolant to keep things moving if you need something to
be say clean you can run clean fluids rather than a recirculating coolant you
can have a different one in your mister versus what you have in your flood coolant it can get fancy oh my god like
somehow it's both perfect and not sharp nothing quite like a brand new machine
running brand new bits eh why that finish is so good is because when you
plow a tool through a part it's going to naturally deflect and the router it's
just so big it can't be rigid this little tool it's a lot denser and a lot
heavier so it deflects less and you get a better finish yeah it's absolutely
incredible almost incredible as my segways to our sponsor drop.com have
launched a new unique keycap in collaboration with hammer that will be
the envy of all your friends that's right they're bringing 2017 back with
the fidget spinner artisan keycap it has
a spinnable top shaped just like the spinners that you see on the streets if
you went back in time and it comes in seven vibrant colors from transparent
watermelon to spotted cheetah and everything in between i personally don't
know what's in between a watermelon and a cheetah but i'm sure it's amazing it's
the perfect time killer in between loading screens and game rounds for when
you're not doing push-ups so uh don't wait spin into action with your fidget
spinner keycap at the link in the video description if you guys enjoyed this
video maybe uh go back in time and have a look at our commissioning video for
the router that was quite the adventure for alex way back in the day oh wait
these are both mini PCIe okay