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JoeLee
01-08-2013, 11:30 AM
I've always heard and have been told to set the diamond nib at about 15 degrees to the wheel when dressing and be in the center of the spindle axis.
What is the reason for the 15 degrees??? Every nib I've ever seen looks like a random chip, no two looking exactly the same.
I get satisfactory results either way but do always try to position the nib on center with the spindle.

JL...............

easymike29
01-08-2013, 12:01 PM
The theoretical reason is given that as you periodically rotate the diamond, the point is constantly being renewed.

dian
01-08-2013, 12:24 PM
if you keep it straight and position it above the axis you get the 15. if it were below the axis, it would tend to jam into the wheel. on my surface grinder, the diamond is on top of the wheel at 90. ist a multipind dresser though.

JoeLee
01-08-2013, 10:14 PM
Yes, that is the way I've always done it, set the diamond just forward of the wheel, left hand side, wheel rotates clock wise.
On the T&C grinder I can angle the nib or drop it slightly below the center line.

JL....................