I am kicking around some ideas for a router tsble, based broadly
on the NYW design with an enclosed bay for the router.

My concern is that with the router inverted, there is a natural
tendency for wood dust to fall into the router from the table. I
am keen to avoid, or at least minimise this, to prolong the life
of my router.

So far I have thought of using a vacuum on "blow" or a small
compressor, to maintain a positive pressure in the router
compartment. However, this strikes me as somewhat impractical.

My next idea was to use some baffles and judicious placement of
ventilation holes to try and create a vortex inside the router
compartment to keep in-fall away from the router, on its way to
the suction.

Has anyone any experience of dealing with this issue. Either
success stories or failures, to stop me repeating past mistakes,
would be welcome. As would anyone who could reassure me that I'm
making the problem bigger than it really is.

Pete

--
.................................................. .........................
.. never trust a man who, when left alone ...... Pete Lynch .
.. in a room with a tea cosy ...... Marlow, England .
.. doesn't try it on (Billy Connolly) .....................................

"Peter Lynch" wrote in message
As would anyone who could reassure me that I'm
making the problem bigger than it really is.

You're building a mountain. Router manufacturers know that wood dust is
flying all over the place when their machines are being used and design
against serious effect from this type of problem. Doesn't matter if it's
being used as a handheld or in a table.

Peter;

I have the PC 890 router mounted in a table similar to what you are
going to build. The 890 has an internal fan that moves a good amount
of air through the router for cooling purposes. The air is flowing
outward or exiting the router on the collet end and keeps the chips
from collecting in the router itself. Your router should have a
similar fan system because they get hot and need some good air flow to
keep them from letting the smoke out.

Redd

In article , Peter Lynch wrote:
I am kicking around some ideas for a router tsble, based broadly
on the NYW design with an enclosed bay for the router.

My concern is that with the router inverted, there is a natural
tendency for wood dust to fall into the router from the table. I
am keen to avoid, or at least minimise this, to prolong the life
of my router.

[snip]

As others have said, you're worrying needlessly. Blow the router clean with
compressed air from time to time, and all should be fine.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

Router designers thought of this years ago. They mounted a high speed (shaft
rpm) fan in the router. They saved you the trouble.
"Peter Lynch" wrote in message
...
I am kicking around some ideas for a router tsble, based broadly
on the NYW design with an enclosed bay for the router.

My concern is that with the router inverted, there is a natural
tendency for wood dust to fall into the router from the table. I
am keen to avoid, or at least minimise this, to prolong the life
of my router.

So far I have thought of using a vacuum on "blow" or a small
compressor, to maintain a positive pressure in the router
compartment. However, this strikes me as somewhat impractical.

My next idea was to use some baffles and judicious placement of
ventilation holes to try and create a vortex inside the router
compartment to keep in-fall away from the router, on its way to
the suction.

Has anyone any experience of dealing with this issue. Either
success stories or failures, to stop me repeating past mistakes,
would be welcome. As would anyone who could reassure me that I'm
making the problem bigger than it really is.

Pete

--
.................................................. ........................
. never trust a man who, when left alone ...... Pete Lynch .
. in a room with a tea cosy ...... Marlow, England .
. doesn't try it on (Billy Connolly) .....................................

in 1306564 20060728 100902 "Upscale" wrote:
"Peter Lynch" wrote in message
As would anyone who could reassure me that I'm
making the problem bigger than it really is.

You're building a mountain. Router manufacturers know that wood dust is
flying all over the place when their machines are being used and design
against serious effect from this type of problem. Doesn't matter if it's
being used as a handheld or in a table.

Pity it doesn't work for heavier particles.
I recently broke a 1/4 inch straight cutter and couldn't find the broken bit anywhere.

I fitted a new bit, switched on ... and found the missing piece - it had dropped into
the router (Ryobi).

"Peter Lynch" wrote in message
...
I am kicking around some ideas for a router tsble, based broadly
on the NYW design with an enclosed bay for the router.

My concern is that with the router inverted, there is a natural
tendency for wood dust to fall into the router from the table. I
am keen to avoid, or at least minimise this, to prolong the life
of my router.

So far I have thought of using a vacuum on "blow" or a small
compressor, to maintain a positive pressure in the router
compartment. However, this strikes me as somewhat impractical.


Like every one else has said, routers have fans that keep the dust out. Not
to worry.

Larger debris is another matter entirely.

Many routers have an improved design fan that keeps debris out of the
router. Some fans on some routers will allow debris to fall into the
housing when the router is not running in its upside down position. Better
routers designed to be hung upside-down have a style fan that blocks
anything from falling inside the router motor.

Peter Lynch wrote:
I am kicking around some ideas for a router tsble, based broadly
on the NYW design with an enclosed bay for the router.

My concern is that with the router inverted, there is a natural
tendency for wood dust to fall into the router from the table. I
am keen to avoid, or at least minimise this, to prolong the life
of my router.

So far I have thought of using a vacuum on "blow" or a small
compressor, to maintain a positive pressure in the router
compartment. However, this strikes me as somewhat impractical.

Been there (momentarily,D only), done that.

DeWalt 621 router sits under my table, with vacuum hose into its
dust-pickup port. Shop-Vac sucks up the debris very nicely. BTW, great
router.

For highly "productive" cuts, a second vac connected above the table
enables sucking up serious amounts of chips/dust per hour.

See the pattern? Suck it up. Not blow it about.

J

Not to add fuel to the fire, but I've got an upside down M12V
and found that dust was getting into the place where the switch
is and making it inoperable (mechanical interference). This isn't
part of the space that's got moving air to keep it clean. I covered
the holes around the plunger shafts with duct tape. So far, so good.

Chris

--
Chris Richmond | I don't speak for Intel & vise versa

On Fri, 28 Jul 2006 13:45:07 GMT, Bob Martin
wrote:


Pity it doesn't work for heavier particles.
I recently broke a 1/4 inch straight cutter and couldn't find the broken bit anywhere.

I fitted a new bit, switched on ... and found the missing piece - it had dropped into
the router (Ryobi).

What happened then?

On Fri, 28 Jul 2006 08:54:50 GMT, Peter Lynch
wrote:

I am kicking around some ideas for a router tsble, based broadly
on the NYW design with an enclosed bay for the router.

My concern is that with the router inverted, there is a natural
tendency for wood dust to fall into the router from the table. I
am keen to avoid, or at least minimise this, to prolong the life
of my router.

So far I have thought of using a vacuum on "blow" or a small
compressor, to maintain a positive pressure in the router
compartment. However, this strikes me as somewhat impractical.

My next idea was to use some baffles and judicious placement of
ventilation holes to try and create a vortex inside the router
compartment to keep in-fall away from the router, on its way to
the suction.

Has anyone any experience of dealing with this issue. Either
success stories or failures, to stop me repeating past mistakes,
would be welcome. As would anyone who could reassure me that I'm
making the problem bigger than it really is.

Pete

What the other guys say is true, routers live in a dusty environment
and the designers have allowed for that.

However, the time I was routing MDF freehand with my Bosch 1617EVS, it
began emitting sounds of mechanical pain about the time I completed
the task. It required complete disassembly to clean out a significant
amount of dust. Of course, the whole work area was very significantly
dustier than I've ever seen if before or after.

YMMV. Caveat Emptor. This is just my experience and it probably has
never happened to anyone other than me. Take this with a grain of
salt.

in 1306622 20060728 164014 George Max wrote:
On Fri, 28 Jul 2006 13:45:07 GMT, Bob Martin
wrote:


Pity it doesn't work for heavier particles.
I recently broke a 1/4 inch straight cutter and couldn't find the broken bit anywhere.

I fitted a new bit, switched on ... and found the missing piece - it had dropped into
the router (Ryobi).

What happened then?

Lots of noise and smoke !!

Peter Lynch wrote:
I am kicking around some ideas for a router tsble, based broadly
on the NYW design with an enclosed bay for the router.

My concern is that with the router inverted, there is a natural
tendency for wood dust to fall into the router from the table. I
am keen to avoid, or at least minimise this, to prolong the life
of my router.

So far I have thought of using a vacuum on "blow" or a small
compressor, to maintain a positive pressure in the router
compartment. However, this strikes me as somewhat impractical.

My next idea was to use some baffles and judicious placement of
ventilation holes to try and create a vortex inside the router
compartment to keep in-fall away from the router, on its way to
the suction.

Has anyone any experience of dealing with this issue. Either
success stories or failures, to stop me repeating past mistakes,
would be welcome. As would anyone who could reassure me that I'm
making the problem bigger than it really is.

Pete


that's how I have mine set up- dust extraction above the table, a small
furnace blower below. I worked that configuration out when I was doing
a long run of heavy cuts and the chips filled the motor up enough to
make it audibly strain and get quite hot.

I do find that the above the table suction is enough by itself most of
the time.

VACCUME ONLY FROM THE TOP.
I HAD AN EYE INJURY, WHILE WEARING SAFTY GLASSES, USEING A SHAPER THAT HAD A
BLOWER ON TOP. CHIP WENT UP AND UNDER MY GLASSES AND IN MY EYE.

SAFETY FIRST, YOU CAN WALK WITH AN ARTIFICAL LEG, PICK THINGS UP WITH AN
ARTIFICIAL HAND/ARM. BUT NO ONE HAS MADE AN ARTIFICIAL EYE THAT YOU CAN SEE
WITH.

WOODWORM
wrote in message
ups.com...

Peter Lynch wrote:
I am kicking around some ideas for a router tsble, based broadly
on the NYW design with an enclosed bay for the router.

My concern is that with the router inverted, there is a natural
tendency for wood dust to fall into the router from the table. I
am keen to avoid, or at least minimise this, to prolong the life
of my router.

So far I have thought of using a vacuum on "blow" or a small
compressor, to maintain a positive pressure in the router
compartment. However, this strikes me as somewhat impractical.

My next idea was to use some baffles and judicious placement of
ventilation holes to try and create a vortex inside the router
compartment to keep in-fall away from the router, on its way to
the suction.

Has anyone any experience of dealing with this issue. Either
success stories or failures, to stop me repeating past mistakes,
would be welcome. As would anyone who could reassure me that I'm
making the problem bigger than it really is.

Pete


that's how I have mine set up- dust extraction above the table, a small
furnace blower below. I worked that configuration out when I was doing
a long run of heavy cuts and the chips filled the motor up enough to
make it audibly strain and get quite hot.

I do find that the above the table suction is enough by itself most of
the time.

J. Mohnike wrote:
VACCUME ONLY FROM THE TOP.
I HAD AN EYE INJURY, WHILE WEARING SAFTY GLASSES, USEING A SHAPER THAT HAD A
BLOWER ON TOP. CHIP WENT UP AND UNDER MY GLASSES AND IN MY EYE.

SAFETY FIRST, YOU CAN WALK WITH AN ARTIFICAL LEG, PICK THINGS UP WITH AN
ARTIFICIAL HAND/ARM. BUT NO ONE HAS MADE AN ARTIFICIAL EYE THAT YOU CAN SEE
WITH.

WOODWORM

the blower from below is only in use when the volume of chips exceeds
what the DC hose positioned directly over the cutter can slurp up. even
then the air flow from the blower isn't particularly high volume- just
enough to keep stuff from falling down through the hole in the insert
plate.

J. Mohnike wrote:

VACCUME ONLY FROM THE TOP.

snip

Your Cap Lock Key broken?

Lew

"Bob Martin" wrote in message

Pity it doesn't work for heavier particles.
I recently broke a 1/4 inch straight cutter and couldn't find the broken
bit anywhere.

I fitted a new bit, switched on ... and found the missing piece - it had
dropped into
the router (Ryobi).

Just thinking of that when turning the router on makes me grimace.

I understand the logic here, and it highlights a real deficiency in my
current set-up which has the dust collection via the Triton, pulling the
dust / chips down the insert plate hole, encouraging more rubbish below. I
will try to incorporate your extra blower thought in my *in progress*
ultimate router table.

Mike

the blower from below is only in use when the volume of chips exceeds
what the DC hose positioned directly over the cutter can slurp up. even
then the air flow from the blower isn't particularly high volume- just
enough to keep stuff from falling down through the hole in the insert
plate.

In article , "J. Mohnike" wrote:
VACCUME ONLY FROM THE TOP.
I HAD AN EYE INJURY, WHILE WEARING SAFTY GLASSES, USEING A SHAPER THAT HAD A
BLOWER ON TOP. CHIP WENT UP AND UNDER MY GLASSES AND IN MY EYE.

Which is why I keep yammering about this point over and over -- wear a face
shield.

And fix your Caps-Lock key. It's broken.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.