Made mistake.. need guidance to move forward

Mimic Knife & Tool

The super part time maker
Knifemaker / Craftsman / Service Provider
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Mar 15, 2021
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After glueing my scales yesterday and sanding some today…. I took all that tape off the blade and realized my blade was warped about an inch from the tip. It’s chisel ground so it makes it look worse than it is. I don’t know how I didn’t notice it after heat treat.

Check my photos for the warp put up against my surface plate.

So question for you vets… can I fix this somehow? If not, is it bad etiquette to sell heavily discounted? Should I just suck it up, call it a learning opportunity, and finish and carry the knife myself?

Thanks in advance,

Andrew
 

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First - Part of the look is optics. A chisel grind makes the tip look warped anyway.
I think whatever warp is there can be flat ground from the back side (ura) on a disc grinder and will need very little adjustment of the other side or profile.

Second - If you decide you don't want to fix it that way you have two options. One is to take off the handles and re-do the blade. The other is to keep the knife for a shop knife or personal hunting knife.

Notice I did not include selling it at a discount. Don't sell or give away an imperfect knife with a known error.
 
First - Part of the look is optics. A chisel grind makes the tip look warped anyway.
I think whatever warp is there can be flat ground from the back side (ura) on a disc grinder and will need very little adjustment of the other side or profile.

Second - If you decide you don't want to fix it that way you have two options. One is to take off the handles and re-do the blade. The other is to keep the knife for a shop knife or personal hunting knife.

Notice I did not include selling it at a discount. Don't sell or give away an imperfect knife with a known error.
Thanks! Ok I think I’ll try and grind it out. That seems like the best option to me. I had a feeling trying to sell it with the error would be a no go but wanted to make sure. I appreciate the insight
 
Thanks! Ok I think I’ll try and grind it out. That seems like the best option to me. I had a feeling trying to sell it with the error would be a no go but wanted to make sure. I appreciate the insight

You might be able to safely do that, it depends what equipment you have and what finish you want. If you can grind it out with a disc sander on super slow speed or even better by hand with a surface plate it might be easier (or less likely to ruin the knife than a 2x72) then blast it or the likes it will probably be fine.

I have ground thousands of chisel ground blades, sometimes when they warp that way it is from grinding one side... either heat, stress or the likes but they never warp the opposite way. I wonder (and doubt) if that is where the Urasuki thing came from.

I would never let a second out of the shop. It will come back someday or haunt your dreams forever!!! Muahaahaha!!! (just kidding about the last part)
 
"...or haunt your dreams forever!!! Muahaahaha!!! (just kidding about the last part)."

He is not really kidding. Daniel is haunted in his dreams almost every night where he is chased by some of his reject knives. It is what makes knifemakers drink (as if most of us needed a reason!)
 
"...or haunt your dreams forever!!! Muahaahaha!!! (just kidding about the last part)."

He is not really kidding. Daniel is haunted in his dreams almost every night where he is chased by some of his reject knives. It is what makes knifemakers drink (as if most of us needed a reason!)

It's true!

I have something like 50 pounds of reject knives in this box I keep.

A lot is Titanium so it's pretty big. As I get better my reject rate goes up!

Cheers!
 
You might be able to safely do that, it depends what equipment you have and what finish you want. If you can grind it out with a disc sander on super slow speed or even better by hand with a surface plate it might be easier (or less likely to ruin the knife than a 2x72) then blast it or the likes it will probably be fine.

I have ground thousands of chisel ground blades, sometimes when they warp that way it is from grinding one side... either heat, stress or the likes but they never warp the opposite way. I wonder (and doubt) if that is where the Urasuki thing came from.

I would never let a second out of the shop. It will come back someday or haunt your dreams forever!!! Muahaahaha!!! (just kidding about the last part)
Yes I’m gunna take my time on the surface plate with sandpaper 💪🏼.

Please don’t haunt my dreams, I already have enough nonsense there to deal with!
 
So......did this happen during grinding?
What steel?
Are you grinding too hot?


Reason I ask is I have my first chisel blades coming up in a few months
 
Single bevel grinds tend to warp in heat treating.

If you sell the knife, it will come back to haunt you over and over again.

Looks like you are going to be a good knife maker.

Hoss
 
I’m fixing it. Spent an hour sanding it on my surface plate. It’s already getting straighter!
 
Good deal.
I am impressed by how nice your knife looks with no 2X72 grinder or fancy equipment. Your results show that taking your time and planning the build are the important steps. Even files and sandpaper can make a lovely knife if you spend the time.
 
Good deal.
I am impressed by how nice your knife looks with no 2X72 grinder or fancy equipment. Your results show that taking your time and planning the build are the important steps. Even files and sandpaper can make a lovely knife if you spend the time.
Thank you, and thank you Hoss.

I don’t have alot of space to make knives where I live right now, and was really wanting to get the ball rolling so I just decided to start with what I could. Takes more time than I’d like but eventually it turns out a finished product. Can’t wait till I can set up all the tools I spent money on!
 
Nobody suggested the carbide hammer trick to fix the warp?
 
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