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Resharpen blunt tip on delica 4

I think you could do it with your Sharpmaker, but I fear it could take a long, long time.

The most effective way would be to use a belt grinder, if you have access to one. I use a Ken Onion Worksharp, and find it helps you repair things like this quickly. I dropped my D2 Benchmade on my kitchen tile a few days ago, when using it.

A half-inch of the blade rolled, and the tip broke off a bit - not a lot, maybe 1/16" - 1/8". A few minutes on the Worksharp got it back in order.

 
I myself did a knife like that earlier on with the SharpMaker, and found it pretty easily fixable. On the medium stone flats (or ideally diamonds, if you have them) take the tip down the length of the rod at an angle like you're trying to push the edge of the tip up to the spine. A good few passes of even strokes on both sides should restore a nice tip. Once the shape is in place, sharpen as normal, but take care to avoid running the tip off of the stones.
 
I bought a pacific salt with a broken tip and put a file to the top of the tip to make it resemble benchmades modified sheepsfoot griptilian


SSPX0390.jpg
 
Hey all, thanks for the replies!

I went with the Sharpmaker (because that's all I have) .... However, I did take surfingringo's recommendation and taped the knife from tip to spine and took off a fair amount of material...

Using only the medium stone, it did take almost 40 minutes to get the knife to where I want it to be. It still has a hump and could be refined but I was worried about making the tip too weak?

Here is a photo of the results..

A0521E1F-4764-4762-9906-C3EBC12160DD_zpsjg7hqzho.jpg
 
Jetlau3 said:
Hey all, thanks for the replies!

I went with the Sharpmaker (because that's all I have) .... However, I did take surfingringo's recommendation and taped the knife from tip to spine and took off a fair amount of material...

Using only the medium stone, it did take almost 40 minutes to get the knife to where I want it to be. It still has a hump and could be refined but I was worried about making the tip too weak?

Here is a photo of the results..

A0521E1F-4764-4762-9906-C3EBC12160DD_zpsjg7hqzho.jpg
Click to expand...

Man that looks great. Its hard to believe that you could do that with only the medium stone. Its also hard to believe it only took 40 minutes! :D
 
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Looks fine to me. If you wanted faster results, notice Lance used 60 grit sandpaper, which is quite coarse compared to the medium stones.

I'd probably keep it how you have it now.
 
So I actually did take a bit more off the spine and the knife profile looks great now.

However... (this always happens I feel.. one problem after another).. the blade has become extremely dull in the process..

For a little background, I had done some sharpening on a sharpmaker but didn't really know how to do it (thus the tip debacle). I read up and got a good feel for it but was never really able to achieve a good factory sharp edge with the knife . It would initially cut paper after sharpening but I felt like it would dull quickly and I was suspicious that it had developed a wire edge or gotten a burr. Regardless, I took some drastic measures and tried to follow some advice from another post . this included running the knife over the medium stone at a 90 degree angle very softly.

My knife now seems duller than ever and regular sharpmaker technique does not seem to be able to get it even sharp enough to do regular cutting chores (cardboard, tomatoes).. have I totally messed this up beyond repair? I'm considering sending it back to Spyderco for the factory sharpening so I can retain the edge in a normal fashion.

Is it possible to regain the edge with the Sharpmaker? How should I do this if I attempt with the medium stones?
Please advise.

Thanks in advance
 
Definately possible. It will take a little time, but sounds like all you did was dull it. You'll be able to get it back.
 
Get yourself the diamond stones to re-profile the main bevel, then sharpen it according to the instructional DVD. You should have a shaving sharp knife in a matter of 20-30 minutes.
 
The-Stig said:
Get yourself the diamond stones to re-profile the main bevel, then sharpen it according to the instructional DVD. You should have a shaving sharp knife in a matter of 20-30 minutes.
Click to expand...

How long should re-profiling the main bevel take on the diamond stones? I plan on just using the diamond stones on the 30 degree setting until the knife is relatively sharp. Then I will move on to the medium and fine stones. Does anyone have an idea of roughly how many passes or how long this first step will take?
 
Jetlau3 said:
How long should re-profiling the main bevel take on the diamond stones? I plan on just using the diamond stones on the 30 degree setting until the knife is relatively sharp. Then I will move on to the medium and fine stones. Does anyone have an idea of roughly how many passes or how long this first step will take?
Click to expand...
Well it all depends on the type of steel and the amount that you need to remove. They do remove steel quickly though, so they are really nice to have. Just set the back bevel with those to thin out that shoulder and then do your edge bevel with the normal stones. Don't use the diamond stones on the edge bevel, because they will be too aggressive. You could easily remove or damage too much steel.
 
Dude, get yourself some paperwheels and a 8" porter cable variable speed grinder, all together about $150-200.

I did the same thing to the tip on my mini grip, and I restored it with my paper wheels in under 5 minutes. Not only can you restore tips and such, but you will be able to get stupid ridiculous sharp edges in under 5 minutes also. When I say "stupid ridiculous sharp" I mean far beyond scary sharp.

Get them now and you'll thank me later;)
 
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