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#1
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Thanks to Otto Carter for sharing his BULLDOZER graver point! Here is a fixture to help make the point. If you are into some harder metals and breaking points, this fixture can help to modify the cutting edge with a very tiny squared off facet on the cutting edges that provide a bulldozer effect. www.AirGraver.com/news.htm
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__________________________________ Steve Lindsay AirGraver.com EngravingArtist.com |
#2
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Steve, is this similar to what is known in the machinist trade as a "Negative Rake?"
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TOLERANCE is the virtue of a man without convictions. |
#3
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Yes.. Well maybe more like a positive rake cutter with a negative rake honed on the cutting edge.
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__________________________________ Steve Lindsay AirGraver.com EngravingArtist.com |
#4
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Instead of dubbing just the tip, this dubs the entire leading edges. You only need to do it a tiny bit.
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Otto Carter Abilene, Texas www.ottocarter.com ![]() Aside from that, Mrs. Lincoln, did you enjoy the play? |
#5
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Otto, I know from drilling brass and bronze that we would put a flat or negative rake on our drill bits and it would cut those metals much better.
I am assuming that this (flat) tool would be used for relieving background. The tiny (0.010???) flat would make for a very strong edge as well as lessening the tool from digging in. Am I correct?
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TOLERANCE is the virtue of a man without convictions. |
#6
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I make a super thin flat. Maybe one thousandth. I make any cut I need to in tough metals.
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Otto Carter Abilene, Texas www.ottocarter.com ![]() Aside from that, Mrs. Lincoln, did you enjoy the play? |
#7
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Hello Steve,
To prevent breaking on hard metals, I changed my graver face from 45 to 50 degrees and dubbed the point. Can I use the BULLDOZER tool or will I have to change my gravers back to 45 degrees in order to use it? Also will this tool works better than changing the angles for this purpose? Thanks Eli |
#8
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Hi Eli, It works with any face angle.. 45..50 etc.
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__________________________________ Steve Lindsay AirGraver.com EngravingArtist.com |
#9
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That mark is 45 degrees, how do you make 50 degrees?
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#10
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The mark is just for reference. Set your graver on and adjust angle until the cutting edge is parallel with the front edge that you will be honing.
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__________________________________ Steve Lindsay AirGraver.com EngravingArtist.com |
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