Author Topic: Grinding Turning and Facing Tools for the Lathe  (Read 15329 times)

Offline TLGriff

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Grinding Turning and Facing Tools for the Lathe
« on: October 20, 2013, 11:26:16 PM »
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


Offline DavidA

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #1 on: October 21, 2013, 06:14:46 AM »
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:

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #2 on: October 21, 2013, 07:49:51 AM »
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

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #3 on: October 21, 2013, 09:30:24 AM »
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

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #4 on: October 21, 2013, 10:08:58 AM »
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

Offline Pete.

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #5 on: October 21, 2013, 02:53:11 PM »
Tom that's a great video, probably the best I've seen on grinding lathe tools!

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #6 on: October 21, 2013, 02:56:29 PM »
Thanks Pete, I'm glad you enjoyed it.

Tom

Offline kayz1

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #7 on: October 21, 2013, 03:34:48 PM »
Thanks Tom that's a great video for a new guy at this hobby like me.
Lyn.

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #8 on: October 21, 2013, 04:30:11 PM »
Thanks Lyn, you are who the video is directed at.

I am also hard at work on a website that will include what I call project tutorials, where drawings will be provided of useful projects that the viewer can use to follow along while the project is built from start to finish on a video tutorial. The projects will be selected to include a good selection of machining practices and will range from beginners level to advanced.

I am better at machining than web design, but I'm stumbling along and hope to have the site online with the first project tutorial within the next month. The site will also better organize my instructional videos and include one of the largest links page on the net.

Tom

Offline Fredbare

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #9 on: October 21, 2013, 06:06:34 PM »
Another newbie here, who really appreciates your video, and thank you Tom for sharing.


John

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #10 on: October 21, 2013, 06:09:28 PM »
Glad I could help John.

Tom

Offline paulmo101

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #11 on: October 22, 2013, 02:07:38 PM »
Thanks Tom

Great video and easy to follow.

Paul

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #12 on: October 22, 2013, 05:46:36 PM »
Thanks Paul, I appreciate the comment.

Tom

Offline Oldboy

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #13 on: October 23, 2013, 12:59:51 AM »
Thanks Tom.  Enjoyed your video very much

Barry

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #14 on: October 23, 2013, 08:08:08 AM »
Thanks Barry, glad you enjoyed it.

Tom

Offline Chuck in E. TN

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #15 on: October 23, 2013, 12:06:22 PM »
Let me add my compliments to the list. Great video, as all your videos are. You have a natural talent for teaching. I would love to take a class from you.
I was a technical instructor in the AF for many years. Talent like yours is rare! Your love of teaching and confidence in your knowledge show through!
I can't wait to see your website! Best of luck with it!
Chuck
Chuck in E. TN
Famous TN last words: "Hey ya'll, watch this..."
MicroMark 7x14, HF X2 mill, Green 4x6 saw. Harbor Freight 170A mig

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #16 on: October 23, 2013, 02:38:40 PM »
Thanks Chuck.

I'm making good progress on the website and should be shooting the first project tutorial this weekend.

Tom

Offline garym

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #17 on: October 23, 2013, 04:31:48 PM »
Just got yourself a new subscriber Tom, I'll just have to watch all the rest of your videos now  :headbang:

Gary
Workshop activity resumes now ankle improving :-)

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #18 on: October 23, 2013, 05:29:03 PM »
Thanks Gary, that should keep you out of trouble for a while. At last count there was a bit over five hours worth.

Tom

Offline Meldonmech

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #19 on: October 29, 2013, 12:40:21 PM »
Hi
                 
                       Well presented, and nicely ground tools

                                                                                         Cheers David

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #20 on: October 29, 2013, 01:15:50 PM »
Thanks David.

Offline Ned Ludd

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #21 on: December 06, 2013, 10:09:05 AM »
Hi Tom,
Great video but I have to take slight issue with you over hand held versus decent tool rest, (not that awful bit of cr*p that comes fitted to most of  the grinders). You quite rightly say it takes practice to grind and it is indeed a very good skill to learn, but with a tool rest that you can set to the desired angle you don't need to spend time learning and can get repeatable results much more easily. Surely it is the aim of man's intelligence to make things to make life easier and I can't help but feel a tool rest is just such a thing.

Ned
I know enough to do what I do, but the more I know the more I can do!

Leafy suburbs of NW London

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #22 on: December 06, 2013, 10:35:12 AM »
Ned,

My goal is to teach basic skills first, and learning to grind freehand is one that is very useful in the shop. Once that skill is developed, there is nothing wrong with using fixtures to make ones life easier, if you have such fixtures at your disposal.

Glad you liked the video.

Tom

Offline BillTodd

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #23 on: December 06, 2013, 12:12:08 PM »
Tom,

Love the videos :)

What have you done to the brake on that hlv?  It stops in a fraction of the time my one does!  Do you not oil the cork or have you found a super replacement?

Bill - who's hlv-h takes several seconds to stop from 3000rpm!
Bill

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #24 on: December 06, 2013, 12:16:25 PM »
Thanks Bill.

The brake just needs regular adjustment and oil to work properly. There is a section in the operators manual that tells how to do it.

Tom

Offline piper1

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #25 on: December 13, 2013, 03:14:58 PM »
Great video thank you.

Offline TLGriff

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Re: Grinding Turning and Facing Tools for the Lathe
« Reply #26 on: December 13, 2013, 04:26:18 PM »
Thanks for watching.