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Fine Embellishment Everything from hand engraving and scrimshaw to filework and carving. The fine art end of the knifemaker's craft.

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  #1  
Old 05-22-2006, 10:36 AM
rashid11 rashid11 is offline
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Location: New Jersey
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Question Making gravers out of round stock

Folx,

I've made a 2-angle sharpening fixture and am thinking about making
some gravers out of round stock (M2, Tungsten Carbide etc). It is
readily available from me favorite supplier, McMaster. 1/8, 3" length



The question I have is: after making one, how do I resharpen it later ?
Being round, how would I locate it in the sharpening fixture, so that it
aligns (yaw) again ? I guess I can always eyeball it, may be with a magnifier, and
go after the 45 face, making sure it rests squarely on a granite plate or something ?



Square bits are easy, as I have made a 90 degree V-notch in the fixture.
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  #2  
Old 05-22-2006, 03:56 PM
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gravertom gravertom is offline
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maybe grind a flat on the shank before you do the final shaping/inital sharpening? That would allow you to re orient it in the fixture, if you have the set screw bear down on that flat spot.

Tom
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Old 05-22-2006, 04:19 PM
J. Barraclough J. Barraclough is offline
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Location: Gardena,Los Angeles California
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Rashid,
I soft solder 1/16 and also 3/32 inch round graver material into a short length of center drilled square key stock.
The keystock is available from Enco and MSC and other suppliers in 3/32, 1/8 inch square and many larger sizes. this gives you an indexable end on your graver.
Using a square collet, anyone with a lathe can drill the keystock about 1/4 inch deep for you.
When the graver becomes too short just heat it and pull it out and replace it with a new one.
Hope this is some help. John Barraclough.
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Old 05-23-2006, 11:22 AM
ksnyder ksnyder is offline
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Location: Toledo, Ohio
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Rashid,
this is not meant to belittle you but knowing how to sharpen by hand and you'd be on your way. Once you learn the proper tool geometry, it will become easy for you. I'm not engraving full time, darn it, but couldnt see buying a machine when I can sharpen as good & faster with a diamond & ceramic stone.
As for the round stock, I use drill rod , grind & harden it mostly for round buttom stuff. Probably cheaper than Mc Master Carr.
As a builder of 18th century rifles & pistols I like to do stuff the "old" way.
Just my $.02 worth,
happy cutting,
Kent
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  #5  
Old 06-05-2006, 12:19 PM
rashid11 rashid11 is offline
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Folx,

I ended up filing a smallish flat onto the shank with a diamond needle file
and that does the trick. I sharpened a graver, took it out, remounted it
in the sharpening fixture again and all the angles seemed to alight just fine.

Kent - I built both the sharpening fixture and the power hone myself, so
now I can make a graver out of 1/8 round stock in about 3mins. Tungsten
carbide from McMaster works great - with brass and mild steel I tried. Lasts
forever, cuts brightly. The brass does build up on the cutting edge a bit.

The gravers come out looking great, when checked under 20x magnification,
very symmetrical.
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  #6  
Old 06-06-2006, 09:31 AM
ksnyder ksnyder is offline
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try some alumacut and or tapmagic. bet that brass wont stick no more. That's right ,alumacut on brass, silver, steel. Will leave a brilliant cut.
Kent
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Old 06-06-2006, 10:03 PM
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mgdesigns mgdesigns is offline
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Location: Franklin, TN
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Rashid:

Post a few photos of your new powerhone and multi-angle fixture for us to see. I have a GRS setup of both, but occasionally I still use my faceting machine because it has much higher accuracy and repeatability.

MG
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Old 06-06-2006, 10:22 PM
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Tim Adlam Tim Adlam is offline
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