this is the MakeHaven video for the large belt grinder in the metal shop this is one point was in
the wood shop so you might see some sawdust on it can be used for wood but we actually just upgraded
with the more powerful motor so that it can be used in the metal shop the idea here is this is
a has only a flat back versus the Kalamazoo belt grinder which has a soft part just probably use
more for squaring things up for deburring larger pieces and just let's say this piece you could
easily do it on the 1 by 42 but you know maybe this one offers a capability that you're looking
for square a bigger stock or something again the this grinder is same ideas a belt sander just used
for metal it can either deburr just removing a little bit around the edge of a piece or movable
bunch of material any other grip that's on it how aggressively you push in terms of safety
you don't wanna wear gloves you want anything that can get in there no one really wants to use thin
metal that could slip in this is a fairly big creep crack between the table bed and the belt
so you don't want to like have something that can easily get sucked in there if you're using
some thinner it's like this would go down then you want to make sure you're holding it up here
so you're not risking one of these situations the one advantage of this this whole belt bed and tilt
you just loosen this and adjust it I'm just gonna put it back to zero what I'm gonna do now alright
so I'm just gonna use this combination square to make sure that I put this back to 90 degrees so
I'm just going to use my stomach to move that so now both the bottom and the top are flat in terms
of how were actually gonna use it this is a foot pedal this is a pretty powerful motor so the idea
is if something bad were to happen a finger gets caught the foot is going to come off the pedal
when you're done just ask that you tucked back there so someone walking by doesn't actually
accidentally step on the pedal when your ready to use it you can pick it out then when you are ready
to use it you're gonna have your stock out here move it up to the front I'll demonstrate first
is how you use it quickly and then we'll go over how to change the belt cause that's something if
you want to do this is a little bit more involved to change the belt your just gonna step on the
pedal we can also grab material like this as with all power tools you want to make sure that the
machine is fully spinning before you touch the material to it so with the cut-off saw Graham
and every other tool power tool you want to make sure that it's fully spinning if it was against
the grinder first and then turn it turn it on it wouldn't be happy just kind of seize up because it
needs to get a little speed going first so now we're going to look at taking the belts on and
off so this is an older machine they didn't make it terribly easy for us so first and we're going
to take this off the top and we're going to take a screwdriver and take this screw out of the side
or bolt I'm a besides using a flat head so once the belt gets dull and you'll want to replace it
we have a few on hand if you are cruising through a bunch of them and you'll probably want to get
your own if you want something to remove material quickly that'd be like a 60 grit just being very
rough if you push that pedal back there so if you were doing something softer than you could just if
you want it to say you're making a knife for the first heavy metal removal then you would want to
use like a sixty grit and then once you're getting closer to your refine finish knife shape then you
would want to use a higher grit remove and smooth material so you just took this side panel off and
is a good precautionary measure in addition to pushing the pedal underneath there we're going
to unplug this as well so now it's unplugged and we can comfortably work on it without any
fear of stepping on the pedal and turning it on so there are two things that we're going to use
to take the belt off first we're going to use the one on the back that's labeled tension just
hard to see from here but I'm just gonna turn this and that's lowering this top wheel go back
a little bit it's a little stiff and then this should slide off now we can see what happens
when the blade or the belt isn't well seated when it's going to one side together you can
see these grooves that have been cut into the metal housing where it's like because the belt
has been slid one way or the other it's literally cutting into it that's why it's important to make
sure that when you're setting up the belt it's centered and not cutting into the here's another
example where the belt who literally just cut right through this this thick metal shield so
that's why you want to make sure that you are doing a good job of centering it switch off you
could put anyone on this one has arrows to show you which direction it should go in so wanna make
sure it's spinning this way it says it's 80 grit that's about all it says and this is a
four inch wide by 48 inch in circumference belt if you're looking to bind your belts
all right making sure the arrows are lined up on the top piece of metal to push against and
then we're gonna give it some tension again I'm just gonna tighten it doesn't need to be crazy
just so it feels snug you can spin it a little bit by hand to see which way it's going and sometimes
it'll shift one way or the other so the way you will adjust that is by loosing this Jam nut so
Jam nut is a nut that is squeezing on here so it can't move because this is obviously vibrating a
lot you wouldn't want it to move on its own so gonna loosen the jam nut which is this one and
then tilt one way or the other so we'll start by turning inwards I'll just turn it one turn
which is actually a bunch and spin it and we can see that it's moving over to the right we don't
want so we're gonna and go back to left more and this is actually easier to do with the machine
on when it's spinning itself so what we'll do is put the covers back on and safely make
that adjustment so first this piece goes on just sits in this groove put this little screw back in
plug it back in okay and now I'm just gonna step on the pedal so we can see which where
it's sitting which is the important part so it's still sitting a little left so we're
just gonna push that in a little bit just by little little increments so it takes a
little fine-tuning and now it's in the middle so I'm just going to tighten the
jam nut back down and now it should stay right in the middle that's the position
that we want and we covered using it and tilting the bed want to make sure there's
enough tension there's not enough tension then it'll be slipping it'll be pushing and
it won't the belt will be stationary while the motor is still spinning so I'll make sure it's
enough tension on there as a good firm feeling and then again when you're done just make sure
to push that back so no one accidentally steps on it and you're good to go thanks for watching