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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
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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. |
#2
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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 |
#3
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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. |
#4
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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 |
#5
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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. |
#6
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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 |
#7
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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 |
#8
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Rashid has been banned.
__________________ [B][URL="http://www.adlamengraving.com"]http://www.adlamengraving.com[/URL][/B] |
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