Rodent Edge Angle?

Z

zignal_zero

Joined
Apr 16, 2008
Messages
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anybody know what degree angle the edge on the Rodent Waki is? i realize that, eventually, it's going to need to be sharpened. i don't want to send it in, but i want as close as possible to the exact same factory edge because this thing cuts great :D
 
Mine seems to be convex. I don't recall if the edge was said to be convex or not but mine sure seems to be. If this is the case and you wish to make it a flat grind it will take a little more effort on your part. Just something to keep in mind. 40* plus does seem to be a good bet though. These things were ground thick. There is a lot of steel behind the edge.
 
Mine is V-ground edge with a convex secondary bevel. If I remember to I will measure it and re-post. 40o seems about right.
 
so.... does this mean the Sharpmaker would be a good tool to use on it? it has a 40* and a 30* and says the 30* is for the "back bevel" would that be the same as the "secondary bevel" you mentioned?

thanks
 
On mine it is 40 degrees total, 20 per side. The secondary bevel on mine is convexed and does not really fit an angle measurement easily. I am not familiar with the term 'back bevel' so I cannot be of much help with it.
 
iamtoast said:
On mine it is 40 degrees total, 20 per side. The secondary bevel on mine is convexed and does not really fit an angle measurement easily. I am not familiar with the term 'back bevel' so I cannot be of much help with it.
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thanks, big help :)
 
It's interesting that some say convex and others say flat gind. Does anyone remeber what they were claimed to be?
It doesen't matter to me as these are awesome blades regardless of what geometry the final edge is. I'm just curious as I will have to sharpen mine at some point too and I'm probaly going to give it a flat final grind.
 
gottahaveit27 said:
It's interesting that some say convex and others say flat gind. Does anyone remeber what they were claimed to be?
It doesen't matter to me as these are awesome blades regardless of what geometry the final edge is. I'm just curious as I will have to sharpen mine at some point too and I'm probaly going to give it a flat final grind.
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yea, i'm with ya 100%. that's why i didn't want to change it at all, when it finally does need sharpening which i anticipate being a WAYS down the road because holds an edge nicely.

i'm not sure who actually uses theirs, i heard references made to "safe queens" in one post, but my Waki has to pull it's own weight. last thing i used it on was pig knuckles that my wife was having trouble hacking through with a meat cleaver. crazy as it sounds, that 18" blade is not really cumbersome for table top cutting tasks lol.

but whatever the edge geometry is, it definately works good.
 
IIRC, these were marketed as having a convex edge. Mine has a convex primary and a convexed edge.
 
Mine definately came with a V edge, I just spent a considerable amount of time making it a convexed edge. (not sure what the RC is at the edge, but it is fricken HARD!)

Did few test cuts before and after, and it cuts WAY cleaner and easier now!
 
The edge on mine is definitely convexed. Maybe I'll just keep it that way. Any suggestions for sharpening to keep it convexed? I think I might use a block of wood with mousepad foam and sandpaper glued to it and move the block instead of the knife. Any thoughts? And no, I'm not in the market for a belt sander right now ;)
 
gottahaveit, a belt sander is great for reprofiling but isn't realy needed to touch up an already convexed edge anyway, so no worries for you there.

sandpaper on a mousepad, or sandpaper on leather backing will work fine. You can try glueing the sandpaper if you want, but I wouldn't since you'll need to change paper freaquently, and glue can sometimes make the paper too stiff. -though I do get that it may seem easier to move the sharpener rather than the blade, I found that it's not too bad doing it the other way around.

Don't forget to finish with a leather strop and compound. :)

Just wondering, did you happen to buy yours used? Seems strange that some would come convexed and some wouldn't. You're very lucky to get one that is!
 
BryFry said:
gottahaveit, a belt sander is great for reprofiling but isn't realy needed to touch up an already convexed edge anyway, so no worries for you there.

sandpaper on a mousepad, or sandpaper on leather backing will work fine. You can try glueing the sandpaper if you want, but I wouldn't since you'll need to change paper freaquently, and glue can sometimes make the paper too stiff. -though I do get that it may seem easier to move the sharpener rather than the blade, I found that it's not too bad doing it the other way around.

Don't forget to finish with a leather strop and compound. :)

Just wondering, did you happen to buy yours used? Seems strange that some would come convexed and some wouldn't. You're very lucky to get one that is!
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I've used the sandpaper on mousepad method for smaller knives but it seems like it might be difficult to sharpen the Waki this way. I guess I'll give it a shot though.

My Waki is not second-hand. It came straight from the company store. I guess since they are hand sharpened it leaves more room for variance from blade to blade.
 
BryFry said:
Just wondering, did you happen to buy yours used? Seems strange that some would come convexed and some wouldn't. You're very lucky to get one that is!
Click to expand...

Mine's convexed and it came straight from the factory.
 
Just checked my Waki again and I was wrong. It looks like mine has a V-ground edge.
 
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