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Grinding Turning and Facing Tools for the Lathe

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TLGriff:
Here's a little video I threw together where I discuss the geometry of turning and facing tools for the lathe and demonstrate how to grind them.

Tom

DavidA:
Tom,

Nice demo.
No doubt there will be purists around the world having kittens while watching that. 'You can't grind lathe tools without a jig'.  Guess you just proved them wrong.

Dave. :thumbup:

TLGriff:
Thanks Dave.

Surprisingly, I don't hear that much from the purists. I guess a picture (or video) truly is work a thousand words.

Tom

lordedmond:
One tip I would like to add
people often ask how do i know when i have ground up the edge of the tool without taking it off the wheel , just look at the sparks traveling round the when when they hit the top of the tool and bounce off you have a full contact up to the edge i.e. sharp , it helps to prevent multiple angles with repeated stabs at the job hold it there ( if you can due to heat ) and let the sparks tell you


and to back up Tom safety glasses must be worn

I did a grinding wheel course and when you see whats in the grinder tray magnified you will be surprised its dust yes and metal turnings just like that which comes off the lathe only in miniature not nice things at all


Take care

Stuart

TLGriff:
Stuart,

As I mentioned in the video, the ability to remove the tool from the wheel and place it back in the same position is the part of hand grinding that only comes with practice. Little tips like the spark thing and touching the bottom of the tool to the wheel first greatly aid that ability.

Like anything else requiring good hand/eye coordination, learning to grind well by hand requires lots of PRACTICE!

Tom

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