Lathe Tool Grinding Jig

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dazz
CNC Expert
CNC Expert
Posts: 243
Joined: Sat 19 Aug , 2006 11:31 am
Hardware/Software: Viceroy TDS 1/1GB lathe, Imperial, stripped down and rebuilt.
Viceroy Taper/Tracer attachment, Shop made cross slide tracer attachment, VSD.
Location: New Zealand

Lathe Tool Grinding Jig

Post by dazz » Thu 07 Jun , 2007 8:30 am

Hi

I needed to make an acurate tool to cut a thread and my off-hand grinding isn't too wonderful. I looked around for a jig and found this one:


http://www.gadgetbuilder.com/ThreadingTools.html

It looked good to me so I made one. Naturally, I added some "improvements".

I used alluminium because that was what came out of the scrap bin. I fabricated because I don't have a mill. I avoided pins by cutting the angle along the base piece. The tool holding block can be located in any one of three positions along the length of the base. I added a fence-plate to allow a wider range of angles to be cut.

No drawings or dimensions. This is a junk box project.
Attachments
IMG_0744.JPG
The jig being used to grind a tool. The cutting edge is face down because it is easier to hold the jig that way. The ruler is being used as a fence to keep the jig at the right angle.
IMG_0744.JPG (111.4 KiB) Viewed 21890 times
IMG_0739.JPG
The fence plate screwed in place so it doesn't get lost.
IMG_0739.JPG (109.87 KiB) Viewed 21890 times
IMG_0738.JPG
When the fence plate is screwed on as shown, the angle is zero degrees.
IMG_0738.JPG (97.1 KiB) Viewed 21890 times
IMG_0737.JPG
When the fence plate is screwed on, angles up to about 30 degrees can be set.
IMG_0737.JPG (114.04 KiB) Viewed 21890 times
IMG_0736.JPG
A tool in the guide read to sharpen.
IMG_0736.JPG (106.52 KiB) Viewed 21890 times
Regards

Dazz

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Mr Magoo
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Posts: 301
Joined: Tue 21 Feb , 2006 21:45 pm
Location: Brisbane, Australia

Post by Mr Magoo » Sun 10 Jun , 2007 7:00 am

Ahhh...

You never fail to impress Dazz...
Keep up the good work!

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