On Wed, 5 Dec 2012 05:23:38 -0800 (PST), "
wrote:

On Dec 4, 10:51*pm, Leon lcb11211@swbelldotnet wrote:
On 12/4/2012 1:36 PM, DerbyDad03 wrote:





On Dec 4, 9:38 am, Leon lcb11211@swbelldotnet wrote:
On 12/4/2012 8:28 AM, DerbyDad03 wrote:

On Dec 4, 9:11 am, Joseph Gwinn wrote:
In article ,
* *Tom Gardner Mars@Tacks wrote:

On 12/3/2012 10:46 PM, Existential Angst wrote:
"Existential Angst" wrote in message
...
"DerbyDad03" wrote in message
...
This guy purposely caused kickback on his table saw to prove a point.

Make sure you watch what happens at 4:20 into the video.

He agrees with anyone who calls him an idiot.

http://www.youtube.com/watch?v=u7sRrC2Jpp4

Excellent vid, valuable lesson.
He's not an idiot, he just didn't have the control over the situation as
he expected. ***** happens, even with good intentions.

He proly would not have lost a digit or part thereof (as in a RAS), but he
certainly came close to requiring a lot of stitches, and poss. nerve
damage -- which can be almost as bad as losing a digit.

How does a riving knife work? *Never saw one before this.

Apropos of this, the SawStop:
http://www.youtube.com/watch?v=eiYoB...endscreen&NR=1

He claims sumpn like 3600 accidents a year, all severed digits? *I doubt it.
Table saws, iiuc, don't nec'ly sever digits -- RAS's do. *So I'm sure plenty
of people get deep cuts on table saws, but not nec'ly severings.
He may have also been lumping RAS accidents with table saw accidents --
assholes aren't nec'ly careful with stats.

But, this demo was ess'ly bogus. *If the saw stop didn't work, he would have
gotten a bit of a nick (MAYBE), before his nervous system kicked in -- ESP
the way his finger was glued to the table..... *sheeit, I'da done that
WITHOUT a saw stop.... gimme a fukn break with that bull****.....

Now, let him put his system on a RAS, and test DAT with his finger, cutting
in climb.... *yeah, I'll hold effing breath....

Finally, the fuknCOST of this system.... *holy ****.... * God help the home
woodworker if this thing ever becomes mandatory. *Which could happen, given
that they now make crawling helmets for toddlers:
http://www.amazon.com/Thudguard-Baby.../dp/B001OWCOTS
Even insufferable Manhattan Yupsters have a tough time swallowing this one.
Trader4 and Terrel would proly buy a crawling helmet, tho....

I'd love to see the system! *I wonder if it could be adapted to shapers,
routers and other cutting machines. *It would help a lot with OSHA
problems where guards make production next to impossible.

The problem with SawStop has been that each false alarm requires
replacing various mechanical components, which takes time and money. *It
doesn't make too many false alarms to make guards more economical.

My recollection is that the sensor measures resistance (not capacitance)
between saw blade and ground, so it won't work with wet wood or metal
stock. *The patents should tell the tale.

Joe Gwinn- Hide quoted text -

- Show quoted text -

Do you have any figures that indicate that "false alarms" are an
issue?

I agree that "each false alarm requires replacing various mechanical
components" but if there aren't any false alarms, then it's a moot
point.

My only point being that using the words "each false alarm" might make
the reader think that they happen often enough to negate the value of
the device. That is not something I have read or heard about the Saw
Stop device, but the info might be out there somewhere.

False trips have never been proven to be of any fault of the saw. *I
have read about the SawStop having an issue with an older electonic
digital watch but Sawstop isolated the problem and took care of the expense.

That said if you are having false trips it may very well be likely that
you are doing something wrong and probably the perfect candidate for a
SawStop, you are probably going to benefit from it. *I know of no one
and have read of no one that has actually purchased a Sawstop having
this problem with out a reasonable solution. *Users are not complaining.

...

The only people complaining about the perceived SawStop problems are
those that are uneducated on the product.

That's what I thought and that's why I asked.

However, something you said needs some clarification, at least to me.

You said: *"That said if you are having false trips it may very well
be likely that you are doing something wrong and probably the perfect
candidate for a SawStop, you are probably going to benefit from it."

What could a user be doing that would cause "false trips"? If there
are no documented false trip issues, then wouldn't any trips caused by
someone doing something wrong actually be *real*?

Cutting wet wood and not over riding the system. *Just for starters.
No fault of the saw. *I see a false trip as something that should not
have happened and is the fault of the saw.- Hide quoted text -



The question then becomes, what exactly is "wet" wood?
To trip a capacitance/resistance sensor probably doesn't
require the wood to be dripping wet. There would be a
whole range of how much moisture a piece of wood might
have. Everything from wood that has been kept inside
in a heated shop, to a piece of wood that has been laying around
at a job site under a tarp, to a piece that was rained on
two days ago, etc....

AIUI, wood has to be almost dripping wet for the SS mechanism to
false-trip. It's a great technology that I might even buy if it
weren't for that horse's ass Gass. I'd pay a couple of hundred for
the *option* but I wouldn't (didn't) pay double ($1500).