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This Page is about my home made dust collector.
I made this in the summer of 2005 and it works pretty well. It could use a little more
pressure, but it flows a good volume of air and filters quite well. I build the collector from
salvaged materials. I spent a little on some switches and filters. In total I spent under $20 to
make this, not including piping.
Contact-me if you would like to ask a question about the unit. More detail is below. Click on
an image below to show a better quality image.
I also made a wood buffer, click here to see it.
Brad Harding, HardingPens.com.
Front view - the unit is 41" high, 38" wide, 16" deep, and was sized to fit between my
workbench and lathe bench. The wood is a mixture of particle board, chip board and
plywood, all scrap I had lying around.
The squirrel cage fan came from an old
furnace that I salvaged when I helped
renovate our old church office. Pulled the
fan before the furnace was dumped into
the bin. The fan has four speeds hence
the on/off switch and three two-pole speed
The collector is a four stage unit, The first two
stages dump the air into large chambers so
the larger chips fall out. Below you can see
the clean-out door open to show the bottom
of the first two stages. Notice the larger chips
in the first stage on the right.
The third stage (below) is a dust bag.
The old boot laces keep it in place
(below). I have since upgraded the bag
to use a 1-micron dust bag available for
a commercial collector unit. The bag
mounts to the modified pail (below-right)
The fourth stage (to left) is a series of
furnace filters. I was expecting these to clog
badly, but I have only had to shake them out
about once a year. The bag is working well
and I am not getting much fine dust in the
Here you can see the original side outlet and the
3" ABS drain pipping and 4" dryer tube used for
the main inlet piping. The flex pipe goes to the
lathe - see below-left. Anyone interested in more
detail see the sketches below-right.
Dryer flex pipe and a blast gate are used to
collect the dust off the lathe. I have also
plumbed in piping to the sander, drill press,
bandsaw, and table saw. I also added a
floor sweep behind the lathe (below).
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View of fan and
motor from inside,
near the dust bag
I cut the bottom out of a pail,
wedged that in a cut hole and
this provided the mounting for
the dust bag. See above.
Above is a view from
inside looking up. This
is the two inlet pipes
and the first deflector.
There are 2 deflectors
to slow larger chips
and get them to fall out
of the air flow. Below is
the inlets shown from
outside looking down
on the pipes.
I modified the dust collector outlet with a
deflector / defuser plate (below). This
redirected the flow away from the nearby
lathe. The airflow was blowing dust into my