Depending on the tolerance (flatness you want) A table top with machined
bosses on the bottom will run from $35 to $60.00 depending on the labor rate
and how bad the surface is right now.
Typically a table saw can be blanchard ground to be flat and parallel within
.002 for the above prices.
I run the business end of a small tool and die company. Part of my job is
estimating from blue prints. We don't blanchard grind in house but I have
some very good sources. You have to figure in shipping, so I would find
Didn't know general machine shops still offered Blanchard grinding.
My guess is that if you have a common saw, you can probably buy a used
complete unit, cannibalize it for parts for less than a grind job.
As an example, my landlord picked up an old Craftsman table saw less motor
Guy was going to give it away for nothing, but finally took the $15.
S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland)
If there are machined bosses on the underside of the table that are not
smacked to hell and gone, it's going to take about an hour...actually,
likely less, but many small shops will have an unofficial one hour minimum
Where are you? I have access to a 36" Blanchard and could do it for you for
a case of beer.
Oh, I don't drink bud, either...I'm easy, but I ain't cheap.
Time to drag this story out again... I had a science teacher in high school
who had had a bit of Latin and a bit of French, and he found himself
stationed in Mexico during his service in whatever branch of the military.
He didn't speak a lick of Spanish. While at a bar, he was served a bottle
of Dos Equis.
"Hmmmm... 'dos' looks like 'des' so it must mean 'from the.' 'Equis' looks
a lot like 'equus' so it must mean 'horse.' I don't think I want to drink
(dos equis is Spanish for "two Xes" (XX))
That guy was a trip. He was about to quit teaching and go sell life
insurance or something, and he didn't give a rat's ass about anything.
"Didn't do your project? That's OK, you get an A anyway. If you had done
it, it would have been good."
(Wow that was a long time ago... The '80s seem so far away.)
Michael McIntyre ---- Silvan < email@example.com>
Linux fanatic, and certified Geek; registered Linux user #243621
Mike, Blanchard grinding utilizes segmented grinding stones attached
to a disk mounted to an arbor whose spindle is perpendicular to the
work surface. At the same time, the magnetic table holding the part
rotates. These machines can be huge, with 60 HP or more not uncommon.
A word of advice: Tell the shop owner that you want the saw table and
wings flat in the free state. That means he will have to shim as
required under them. If he doesn't do this, then the magnetic table
will pull down the work and when the magnet is turned off after
grinding, the part will return to it's original position. Most
machines automatically de mag but ask anyway to make sure. You don't
want a magnetic table saw. This process leaves swirl marks on your saw
top. While you have the thing apart, ask him to slap the top and wings
on an angle plate on a surface grinder and grind the edges square.
Then everything will be flat and square.
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