"Gunner Asch" wrote in message
...
On 21 Oct 2005 23:02:48 -0700, "Honest A Babin"
wrote:

Hello,
I'm trying to resurface the magnetic chuck on my surface grinder but
the grinding wheel I have is too hard to do the job properly without
clogging and bouncing before I'm even a third through. It's a mess and
iirc the job calls for a soft, open grain wheel, no?
Wheel is 7" maximum and I could use specifics on grain, bond, etc for
all around general purpose use.
A link to a simple tutorial and if possible Graingers or MSC stock #'s
would be appreciated.
Cordially,
Al


Al, you want a nice new White wheel, about an 80 to 120 grit.

Are you sure about that Gunner? KO Lee recommends a 46 grit wheel and I've
seen others recommend that grit on the web for dressing a chuck.

Take a Magic Marker, and swizzle it around the top of the chuck. Dress
the wheel square, and take cuts of no more than a couple tenths per
full pass. When the magic marker is completly gone, repeat once more,
with magic marker, make another couple tenths pass, , then its time
to stop. Holes, gouges and pits will harm nothing. All you want to do
is make sure its flat to the wheel travel, with no raised edges around
the craters. If you have coolant..use it.

Gunner

"Pax Americana is a philosophy. Hardly an empire.
Making sure other people play nice and dont kill each other (and us)
off in job lots is hardly empire building, particularly when you give
them self determination under "play nice" rules.

Think of it as having your older brother knock the **** out of you
for torturing the cat." Gunner