In a previous video I built this blower.
And it's quite powerful. And I want to use it to build
a dust collector. I'm gonna use
this cyclone that I built in another video.
And that's gonna go roughly here.
And the air flows into the cyclone separates most of the dust.
And then I need to filter it.
And for that I'm gonna use two rigid shop vac filters.
And those are gonna fit into
this box here. And I still need a manifold
to connect that to the blower.
And I built this manifold earlier except I didn't quite do this right.
So, in this video I'm gonna build it again. And I'll show you how.
The filters need to mount right about here.
And I've already cut all the pieces for this.
'Cause that’s not that interesting.
So the base of the manifold is gonna be this part here.
And then, this goes on top. I'm gonna build a box
around here. So, I've got this part here.
That directs the air.
Kind of think we're backwards.
That directs the air over this way. And then when this part goes on here
We have, all the air has to come from these holes.
There's hopefully no leakage.
And this is even beveled here so we have room for the bucket.
And then the filters go on here.
And the box around everything.
Last time, I cut this part here I did a fancy bevel cut.
So it'd connect from from here to here without going through here but
its thick enough I had to make it out of two layers anyway.
So this time, I just cut the head out and then added the second layer.
I think that's adequately clamped now.
If you don't have that many clamps just use a brad nail or screw it together.
This part is gonna glue on top of here
and while I'm waiting for the glue to dry.
I'm gonna attach the mounts for the filters here.
I cut out these conical pieces just by making a bevel cut
around the circle with the band saw.
And that's sized to fit just inside the rubber here.
So, if I screw these onto here
that will make a place to jam the filter on.
The filters are gonna fit inside the box on these conical mounts.
Like so.
And to keep them from eventually just kinda dropping down from gravity
or coming loose I've got this part here.
And that also plugs these holes in the bottom of these filters.
And that keeps them from sliding down.
And the air from the cyclone is gonna come from this elbow here
into here but the problem is, a cyclone, if you forget to empty the bucket
can get full of shavings and just pass everything so
to keep the filters from getting completely filled up with savings
when that happens. I'm adding this bug screen in here.
And the whole idea is this area's gonna get plugged up before
the filters get full of shavings. And to hold this bug screen in place
I'm gonna glue some bits of wood in here to give it a support rail
for sliding in and out on.
I'm using a piece of wood that's cross-grained because
all the grain in this wood is running this way and
that way the shrinkage and expansion
will be compatible between the two.
If the grain went this way
then it would eventually work its way loose.
Now, with the glue dry on this part I'm ready to glue
this layer onto it. And I'm gonna do that
resting on top of this piece of plywood here because that will make it easier
to get the clamps in under it. And it also helps make sure there's no twist in it
Because this thicker plywood is much stiffer.
And again I have to wait for that glue to dry.
A tricky part of the design is how this is gonna attach on here.
'Cause I can't just screw it to that plywood very well anymore.
Because I covered it up An I thought about screwing it from this side
but that blocks access to the screws for screwing the cover on here.
So I don't want to do that either.
Um, I thought about using bolts through here.
Through the whole case but that's not a good idea
because those'll probably work there way loose eventually.
So, what I realized then is I can actually still screw
through the holes in here.
So, I put some screw holes right below where the filters are.
And I'm gonna use some very small screws
because the front of this blower is not very thick
and with these screws I will just barely
not screw into the inside of it.
But before I screw this manifold to the blower
I need to glue this box
to the manifold.
And now I have to wait for the glue to dry again.
Isn't this exciting.
I glued on a piece of felt here. Just to make sure I got a good seal.
Now, I can join these guys up.