grinding trick

If your on a small grinder, 6 x 12, 6 x 18 etc... Here's a neat trick.
Go buy an extended hub for your wheel. They just make your wheel stick out
an inch or so.
Take your magnet (hopefully a walker) and throw it on an angle plate and grind the front square. While the magnet is off the machine, grind the strip of machine in front of the magnet with the extended hub. Put the magnet back on.
Now you have a built in magnetic squaring block. Grind your blocks flat, then stick them on the front of the chuck, it holds like a rock, and grind it square with the extended hub. If a stop is needed, you ground the casting in front of the magnet, so lay your part on it. This will also allow you to get another inch or 2 of height out of your grinder.
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Would'nt a magnetic squaring chuck be a good idea? IMO they are the "cat's meow". Its basically a 6X6 or what ever size, precision ground on all sides, that can stand on edge, with your piece sticking out the front. Grind your piece, then rotate the whole chuck for the 2nd side (without taking the piece off). Its doing the same as a grinding vise, only one side is needed to be ground flat and its quicker than a vise to do the first two sides. Plus your not dealing with vise jaw "flex" - from tightening the shit out of it<g>. And sometimes you have a piece that cant be held in a vise due to length or front details. Depending on the style of grinding vise, the solid vise jaw will flex causing an out of sqr work piece. A really quick shop trick: Use a Harig head with a magnet held to the face,for squaring small pieces You guys do have Harig (precision indexing)heads in other parts of the country? There's a #1 & a larger #2. Now the question is: how good is your grinder chuck? closer than 50millionths?(thats a 1/2 tenth) .00005" And how do you check it?
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wrote:

Would'nt a magnetic squaring chuck be a good idea?
***** Yah, but you have one built into the front of a mag chuck. ****
IMO they are the "cat's meow". Its basically a 6X6 or what ever size, precision ground on all sides,
***** I have a 3 X 3 X 6 I think. I wish it held as strong as the front of a walker mag. *****
that can stand on edge, with your piece sticking out the front. Grind your piece, then rotate the whole chuck for the 2nd side (without taking the piece off). Its doing the same as a grinding vise, only one side is needed to be ground flat and its quicker than a vise to do the first two sides. Plus your not dealing with vise jaw "flex" - from tightening the shit out of it<g>. And sometimes you have a piece that cant be held in a vise due to length or front details. Depending on the style of grinding vise, the solid vise jaw will flex causing an out of sqr work piece. A really quick shop trick: Use a Harig head with a magnet held to the face,for squaring small pieces You guys do have Harig (precision indexing)heads in other parts of the country?
****** Nope. Those are obsolete. Herman Smidt spinners all the way! ******
There's a #1 & a larger #2. Now the question is: how good is your grinder chuck? closer than 50millionths?(thats a 1/2 tenth) .00005" And how do you check it?
-- As we enjoy great advantages from the inventions of others, we should be glad of an opportunity to serve others by any invention of ours; and this we should do freely and generously. (Benjamin Franklin)
\|||/ (o o) ______.oOO-(_)-OOo.____________________ ~ Gil ~ the HOLDZEM king
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Wheel hub extenders are common in your area? Not up here. Unless you buy your own. Then your taking it off & on all the time. Next thing is some coook will tell you "its hard on the spindle bearings" Gear/spline drive spindle nuts are suweet though

Fine pole or course? Maybe the slides inside your chuck are wore? Unless its electric, then never mind. Would not recommend "hogging" Its just a dust off for initial squareness. Final grinding done flat on the grinder chuck.
Whats the best magnetic blocks? Laminated or the ones with tons of rods pressed in?

What make's em obsolete?

any suggestions?

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