Knives for Cutting Competition

Ban

Ban

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Does anyone own one of those custom blades made specifically for cutting competitions? I am curios to see how those things are ground and how thin the edges are on those things. I am guessing that most of them are either flat ground with convexed edges or fully convexed. Also interested to find out the spine thickness of those things. Close-up pics of the edges and primary bevel would be nice :)

I have the urge to mod a INFI version of one of those bad boys.
 
Ban said:
Does anyone own one of those custom blades made specifically for cutting competitions? I am curios to see how those things are ground and how thin the edges are on those things. I am guessing that most of them are either flat ground with convexed edges or fully convexed. Also interested to find out the spine thickness of those things. Close-up pics of the edges and primary bevel would be nice :)

I have the urge to mod a INFI version of one of those bad boys.
Click to expand...

All I know is that all of them are between 1/4 and 5/16 inch thick flat ground. As for the edge, since they are using carbon steels like 1050 or O1, 3V, L6, I would guess that the edges are pretty thin and the tempers ate differential to enhance performance.
 
Wow, those knives are that thick? I was thinking that they would be more like 3/16 or so..... I am just guessing because I would think that the thicker blades would give too much drag on the water bottle cutting event.
 
They are that thick at the ricasso but generally have a strong distal taper over the length of the blade (10" long max, IIRC). Also, they are relatively tall blades (~2") so they can have a good gradual slope to the edge.

This guy can cut 17 bottles in a single swing:

17-bottles.jpg


(taken from here: http://www.bradleysblades.com/cutting.html )

Rick
 
rbmcmjr said:
They are that thick at the ricasso but generally have a strong distal taper over the length of the blade (10" long max, IIRC). Also, they are relatively tall blades (~2") so they can have a good gradual slope to the edge.

This guy can cut 17 bottles in a single swing:

17-bottles.jpg


(taken from here: http://www.bradleysblades.com/cutting.html )

Rick
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Yeah, I saw that. He set the world record with 17 bottles ;):thumbup::thumbup:
 
Ban said:
Yeah, I saw that. He set the world record with 17 bottles ;):thumbup::thumbup:
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Wow, that's crazy! Could you post the link to the previous world record of less than 17 Aquafina plastic water bottles?;):thumbup:
 
The comp knives I have seen have edge geometry that is convexed with flat main bevels. Very little disernable transition from bevel to edge. Not overly thinned out either though as I had expected to find. Most were right around 1/4in thick. I was talking with the fellow in the pic and he liked his blades a little weight foward for the chopping part of the competition. He surely seems to know what he is talking about :) His blades were comfortable in the hand and didn't seem like they were far from the weight and geometry of a nice camp knife.
 
he set a new one of 18, the picture of his knife on his site is quite helpful in fiuguring out what a good competition knife is. I wonder how a FBM would fare as a competition knife?
 
Thanks Bill! That was very insightful. I sounds full flat grind that transitions to a full convex towards the cutting edge.

Matteo, I am not sure what the previous record was...
 
Keith_H said:
he set a new one of 18, the picture of his knife on his site is quite helpful in fiuguring out what a good competition knife is. I wonder how a FBM would fare as a competition knife?
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That is exactly what I am thinking right now. However, it exceeds the overall length of 15"
 
Justabuyer said:
You could grind some of that stuff off the end...
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Yeah I suppose I can remove some material off the rear tip of the handle. However, I do not want to go too far because that rear portion is the only part of the fusion that fit my hands. Also the blade would need to be shortened slightly.

Hell why does it matter anyway? It is not like I plan on entering the events or anything. Would probably get eaten alive by the big boys :D
 
Ban,

Great Thread :thumbup:
If you decide to go for a mod - please let us see some pics.

I've been curious about this as well. I wonder what Jerry B uses when he does his demonstrations?
 
mostly unrelated, but i used to own a katana that was designed for cutting competitions. it had some weird edge geometry. a convex main bevel that went to hollow, then another convex and finally flat the rest of the way (that was the edge. it was extremely thin).
 
silverdragon33 said:
mostly unrelated, but i used to own a katana that was designed for cutting competitions. it had some weird edge geometry. a convex main bevel that went to hollow, then another convex and finally flat the rest of the way (that was the edge. it was extremely thin).
Click to expand...

Those katanas are designed for cutting tatami mats. I highly doubt it that it would stand up heavy 2X4 chopping. That is quite a interesting edge that you described.
 
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