I am continuing to attack dust in my basement workshop. My current target is
my random orbital sander. The filter attached to the sander gets some of
the dust but a bunch more spinsoff uncollected.
In the book "Controlling Dust in the Workshop" by Rick Peters he talks about
building a downdraft sanding table (pegboard over a box with a dust
collector attached. He also talks about a shopmade air cleaner placed near
the sanding process. I kind of like the sanding table idea but before I
spend the time making one I'd like to hear some feedback from those of you
who might have used them.
I believe Tom Plamann likes his. His own design. Take a look here and all
through his site. Truly, time well spent looking at his site.
Tom says he uses a shop vac on the table. It must be huge. The combined
cross sectional area of 152 3/4" holes is equal to an 9" pipe!
My Dewalt 5" ROS has a port (1"?) that the bag detaches from (can someone
tell me what the bag is good for, anyway). I bought a special hose that
attaches directly to my ShopVac canister and connects to the port. I find
that it works pretty well.
Can you tell me where you got the special hose? I tried to hook up my narrow
diameter shop vac hose to my PC sander but it doesn't quite fit. It would be
nice to have the right hose rather than use duct tape or some other cobbled
up solution all the time.
I built my "Sanding Table" years ago and yes I did use pegboard
over a box (about 3 inches tall)... with dowels (plenty of them)
raising up from the bottom of the box to support the pegboard...
It works...BUT I have had to "slightly" enlarge the holes in the
pegboard as over time they clogged up ...
My Table is almost 2x4 foot.. and is attached to a workbench with
hinges that allows me to swing it up and use it very quickly...BUT I
have to crawl under it to atach the 4 inch Flex hose from the DC when
I want to use it... somewhat of a pain ...
BUT ......IT IS WAY TWO LARGE... suffers from lack of suction near
the edges.. One of these days I will make another ...smaller 2x2
maybe ...and just store it on the floor next to the workbench.. DC
port would be on the side (not the bottom) ...
On Sun, 5 Dec 2004 11:45:24 -0500, "Dick Snyder"
I built one the same as Bob 2 x 4 foot and agree with him it is to
large, I did put the DC port on one end though and it works well at that
end. I tend to throw a piece of plastic over it to block the holes
where I am not working and that improve suction. I should just rebuild
Bob G. wrote:
Mines small, about 18" x 11", mainly because I built it in a fit of
energy when i had to sand a bunch of small drawer fronts...
I made the fitting for my shop vac, figuring that I'd convert it to
the DC when I got one..
It works so well with the shop vac that I haven't bothered converting
Sun, 5 Dec 2004 11:45:24 -0500, "Dick Snyder"
Power sanding machines need power dust collection IMHO.
Sanding tables are great if you have space, otherwise just make a
table-top box that can be stored away. It only needs to be 3-4" deep.
Put a hanging hook on it and store it hung up, as the top is fragile
and doesn't like getting thumped.
The top shouldn't be pegboard. It's too soft, too easily damaged, and
the holes aren't big enough. I've seen one table made with laser-cut
MDF (radiator screening) that was neat, but for the rest of us just
bite the bullet and drill those holes yourself. Use a hexagonal grid
for best void / strength ratio, or an Archimedean spiral if you want
it to look prettier.
My box is cheap plywood, with a drilled MDF top. There's a hole in one
side where the DC hose plugs in. The top is 10mm MDF laid over an
egg-crate construction of 6mm MDF - typical torsion box construction.
Drill big holes through all the egg-crate webs to let the dust flow
In use I feed it with 2" hose into a home-made cyclone powered by a
workshop vacuum cleaner.
I built one from ShopNotes plans (sorry I don't recall the issue). It
is made from MDF and has a door that opens from the side. It uses
three furnace filters in series, a squirrel type 1/4 HP fan motor,
rubber locking casters, and a convenient electrical outlet. The top
is pegboard. I sealed the door with weather stripping. This
downdraft table can be used as a sanding table and/or shop air filter.
It works exceptionally well at clearing the air of airborne dust.
I've even used it to dry items.
Have you ever tried a Shop Vac hose on the sander? I use one with a
HEPA filter equipped vac, and virtually nothing escapes. It's great!
Auto switches are available for ~$20 that'll turn the vacuum on and
off as you use the sander.
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