Found this article...

"Single-phase induction motors drive many arbor-mounted cutting tools in the
home workshop. Stationary grinders, table and radial arm circular saws
frequently turn abrasive or cutting disks that are directly mounted on the
motor's spindle. These disks have large inertial moments that allow them to
free wheel for a long time after the power is turned off. A lengthy coast to
complete stop often amounts to a major inconvenience."

http://www.homemetalshopclub.org/new...html#reversing

"HeyBub" wrote in message
...
Found this article...

"Single-phase induction motors drive many arbor-mounted cutting tools in
the home workshop. Stationary grinders, table and radial arm circular saws
frequently turn abrasive or cutting disks that are directly mounted on the
motor's spindle. These disks have large inertial moments that allow them
to free wheel for a long time after the power is turned off. A lengthy
coast to complete stop often amounts to a major inconvenience."

http://www.homemetalshopclub.org/new...html#reversing

Why did you find it???????????????

EXT wrote:
"HeyBub" wrote in message
...
Found this article...

"Single-phase induction motors drive many arbor-mounted cutting
tools in the home workshop. Stationary grinders, table and radial
arm circular saws frequently turn abrasive or cutting disks that are
directly mounted on the motor's spindle. These disks have large
inertial moments that allow them to free wheel for a long time after
the power is turned off. A lengthy coast to complete stop often
amounts to a major inconvenience."
http://www.homemetalshopclub.org/new...html#reversing

Why did you find it???????????????

I was looking for a home remedy for a festering, fulminating, giant red mass
on my, er, never mind. Just say I stumbled across it and thought it might be
interesting to some (the motor business, not my, um, temporary disability).

On Sat, 09 Oct 2010 12:47:25 +0100, Stuart
wrote:

In article ,
HeyBub wrote:
I was looking for a home remedy for a festering, fulminating, giant red
mass on my, er, never mind.

A boil on the bum then :-)

Sounded like election-time talk to me. shrug

--
Ask not what the world needs. Ask what makes you come
alive... then go do it. Because what the world needs
is people who have come alive. -- Howard Thurman

"HeyBub" wrote in message
...
Found this article...

"Single-phase induction motors drive many arbor-mounted cutting tools in
the home workshop. Stationary grinders, table and radial arm circular saws
frequently turn abrasive or cutting disks that are directly mounted on the
motor's spindle. These disks have large inertial moments that allow them
to free wheel for a long time after the power is turned off. A lengthy
coast to complete stop often amounts to a major inconvenience."

http://www.homemetalshopclub.org/new...html#reversing


Great ... I may rig up my table saw this way. Would be safer with a brake.
WW

WW wrote the following:
"HeyBub" wrote in message
...

Found this article...

"Single-phase induction motors drive many arbor-mounted cutting tools in
the home workshop. Stationary grinders, table and radial arm circular saws
frequently turn abrasive or cutting disks that are directly mounted on the
motor's spindle. These disks have large inertial moments that allow them
to free wheel for a long time after the power is turned off. A lengthy
coast to complete stop often amounts to a major inconvenience."

http://www.homemetalshopclub.org/new...html#reversing


Great ... I may rig up my table saw this way. Would be safer with a brake.
WW

If I need to stop a spinning table saw blade in a hurry to change or
reset something, I find that a scrap piece of lumber makes a great blade
brake. Turn the saw off and slide the scrap up to the still spinning
blade. Blade stops in a couple of seconds. No extra parts needed.

--

Bill
In Hamptonburgh, NY
In the original Orange County. Est. 1683
To email, remove the double zeroes after @

On 10/10/10 11:35 AM, willshak wrote:
WW wrote the following:
"HeyBub" wrote in message
...
Found this article...

"Single-phase induction motors drive many arbor-mounted cutting tools
in the home workshop. Stationary grinders, table and radial arm
circular saws frequently turn abrasive or cutting disks that are
directly mounted on the motor's spindle. These disks have large
inertial moments that allow them to free wheel for a long time after
the power is turned off. A lengthy coast to complete stop often
amounts to a major inconvenience."

http://www.homemetalshopclub.org/new...html#reversing


Great ... I may rig up my table saw this way. Would be safer with a
brake. WW

If I need to stop a spinning table saw blade in a hurry to change or
reset something, I find that a scrap piece of lumber makes a great blade
brake. Turn the saw off and slide the scrap up to the still spinning
blade. Blade stops in a couple of seconds. No extra parts needed.


Someone could make some money by developing an aftermarket saw brake,
under the table.... pads or rollers or whatever, that would squeeze the
blade.


--

-MIKE-

"Playing is not something I do at night, it's my function in life"
--Elvin Jones (1927-2004)
--
http://mikedrums.com

---remove "DOT" ^^^^ to reply

On Sun, 10 Oct 2010 11:54:19 -0500, -MIKE-
wrote:

On 10/10/10 11:35 AM, willshak wrote:
WW wrote the following:
"HeyBub" wrote in message
...
Found this article...

"Single-phase induction motors drive many arbor-mounted cutting tools
in the home workshop. Stationary grinders, table and radial arm
circular saws frequently turn abrasive or cutting disks that are
directly mounted on the motor's spindle. These disks have large
inertial moments that allow them to free wheel for a long time after
the power is turned off. A lengthy coast to complete stop often
amounts to a major inconvenience."

http://www.homemetalshopclub.org/new...html#reversing


Great ... I may rig up my table saw this way. Would be safer with a
brake. WW

If I need to stop a spinning table saw blade in a hurry to change or
reset something, I find that a scrap piece of lumber makes a great blade
brake. Turn the saw off and slide the scrap up to the still spinning
blade. Blade stops in a couple of seconds. No extra parts needed.


Someone could make some money by developing an aftermarket saw brake,
under the table.... pads or rollers or whatever, that would squeeze the
blade.

Lawsuits from the arse with the SawStop patents notwithstanding, I
think he went with the positive stop style because it's the only one
which would keep from taking a finger off. The rest spin just enough
to do serious damage.

--
Ask not what the world needs. Ask what makes you come
alive... then go do it. Because what the world needs
is people who have come alive. -- Howard Thurman

On 10/10/10 4:51 PM, Larry Jaques wrote:
On Sun, 10 Oct 2010 11:54:19 -0500,
wrote:

On 10/10/10 11:35 AM, willshak wrote:
WW wrote the following:
wrote in message
...
Found this article...

"Single-phase induction motors drive many arbor-mounted cutting tools
in the home workshop. Stationary grinders, table and radial arm
circular saws frequently turn abrasive or cutting disks that are
directly mounted on the motor's spindle. These disks have large
inertial moments that allow them to free wheel for a long time after
the power is turned off. A lengthy coast to complete stop often
amounts to a major inconvenience."

http://www.homemetalshopclub.org/new...html#reversing


Great ... I may rig up my table saw this way. Would be safer with a
brake. WW

If I need to stop a spinning table saw blade in a hurry to change or
reset something, I find that a scrap piece of lumber makes a great blade
brake. Turn the saw off and slide the scrap up to the still spinning
blade. Blade stops in a couple of seconds. No extra parts needed.


Someone could make some money by developing an aftermarket saw brake,
under the table.... pads or rollers or whatever, that would squeeze the
blade.

Lawsuits from the arse with the SawStop patents notwithstanding, I
think he went with the positive stop style because it's the only one
which would keep from taking a finger off. The rest spin just enough
to do serious damage.


A saw blade brake wouldn't infringe on SawStop's patent at all.



--

-MIKE-

"Playing is not something I do at night, it's my function in life"
--Elvin Jones (1927-2004)
--
http://mikedrums.com

---remove "DOT" ^^^^ to reply

On 10/10/2010 11:54 AM, -MIKE- wrote:
On 10/10/10 11:35 AM, willshak wrote:
WW wrote the following:
"HeyBub" wrote in message
...
Found this article...

"Single-phase induction motors drive many arbor-mounted cutting tools
in the home workshop. Stationary grinders, table and radial arm
circular saws frequently turn abrasive or cutting disks that are
directly mounted on the motor's spindle. These disks have large
inertial moments that allow them to free wheel for a long time after
the power is turned off. A lengthy coast to complete stop often
amounts to a major inconvenience."

http://www.homemetalshopclub.org/new...html#reversing


Great ... I may rig up my table saw this way. Would be safer with a
brake. WW

If I need to stop a spinning table saw blade in a hurry to change or
reset something, I find that a scrap piece of lumber makes a great blade
brake. Turn the saw off and slide the scrap up to the still spinning
blade. Blade stops in a couple of seconds. No extra parts needed.


Someone could make some money by developing an aftermarket saw brake, under the
table.... pads or rollers or whatever, that would squeeze the blade.

I've always wondered if a set of good quality bicycle brakes couldn't be safely
mounted on the trunnion to perform that very task. Route the cable to the
front of the saw to a hand or foot operated lever and there ya go.

--
Free bad advice available here.
To reply, eat the taco.
http://www.flickr.com/photos/bbqboyee/

"Steve Turner" wrote in message
...
On 10/10/2010 11:54 AM, -MIKE- wrote:
On 10/10/10 11:35 AM, willshak wrote:
WW wrote the following:
"HeyBub" wrote in message
...
Found this article...

"Single-phase induction motors drive many arbor-mounted cutting tools
in the home workshop. Stationary grinders, table and radial arm
circular saws frequently turn abrasive or cutting disks that are
directly mounted on the motor's spindle. These disks have large
inertial moments that allow them to free wheel for a long time after
the power is turned off. A lengthy coast to complete stop often
amounts to a major inconvenience."

http://www.homemetalshopclub.org/new...html#reversing


Great ... I may rig up my table saw this way. Would be safer with a
brake. WW

If I need to stop a spinning table saw blade in a hurry to change or
reset something, I find that a scrap piece of lumber makes a great blade
brake. Turn the saw off and slide the scrap up to the still spinning
blade. Blade stops in a couple of seconds. No extra parts needed.


Someone could make some money by developing an aftermarket saw brake,
under the
table.... pads or rollers or whatever, that would squeeze the blade.

I've always wondered if a set of good quality bicycle brakes couldn't be
safely mounted on the trunnion to perform that very task. Route the cable
to the front of the saw to a hand or foot operated lever and there ya go.

--
Free bad advice available here.
To reply, eat the taco.
http://www.flickr.com/photos/bbqboyee/

The now common disk brakes might be a great match - their designed to grab a
thin metal disk instead of a wide rim.
Kerry

On 10/10/10 7:51 PM, Steve Turner wrote:
Someone could make some money by developing an aftermarket saw brake,
under the
table.... pads or rollers or whatever, that would squeeze the blade.

I've always wondered if a set of good quality bicycle brakes couldn't be
safely mounted on the trunnion to perform that very task. Route the
cable to the front of the saw to a hand or foot operated lever and there
ya go.


Interesting. There is certainly a lot for force against a bike brake
than a coasting saw blade/motor. I think a simple spring and
electromagnet/solenoid would do the trick in the same way an electric
door bell works.
No electric current: spring holds brakes closed.
Electric current: solenoid pulls brakes open.
A manual cable or secondary electric source could be added for manual
brake release.


--

-MIKE-

"Playing is not something I do at night, it's my function in life"
--Elvin Jones (1927-2004)
--
http://mikedrums.com

---remove "DOT" ^^^^ to reply