Help with a blade

I need a little help with a 5/8 Dovo Best Quality. I couldn't get it sharp in the middle of the blade. I noticed, with a loupe, that it wasn't making contact in the middle. So, I thought I'd tape the spine and do some circles with some slurry on my Norton 4k ( my lowest grit stone besides my 325 DMT). I think I made some improvement, but there is still a small area that's not contacting the stone.

I've noticed that on one side of the razor the bevel seems to disappear where it's not contacting the hone, but on the opposite side, in the same spot, the bevel gets really wide. Not sure if I has anything to do with my issue, just an observation.

If I keep doing circles with some pressure, will I eventually start making contact with the trouble spot?

Thanks for any tips,

Ken

Sounds like a Warped blade, I have the same razor and my blade has a slight warp. Lay it flat on a Perfectly flat surface (maybe a lapped hone) see if it's in contact all along the edge and spine. If it seems like it's not warped then you may have a frown:( .

Either way I thing i would add some layers tape to the spine and do some aggressive circles to take metal off until you have established a bevel, then reduce the amount of tape(or none at all) and remake a new bevel at that angle and go on from there.

Take a look at this thread it may have some good hints : http://straightrazorpalace.com/showthread.php?t=88941

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Originally Posted by 111Nathaniel

Sounds like a Warped blade, I have the same razor and my blade has a slight warp. Lay it flat on a Perfectly flat surface (maybe a lapped hone) see if it's in contact all along the edge and spine. If it seems like it's not warped then you may have a frown:( .

Either way I thing i would add some layers tape to the spine and do some aggressive circles to take metal off until you have established a bevel, then reduce the amount of tape(or none at all) and remake a new bevel at that angle and go on from there.

Take a look at this thread it may have some good hints : What's wrong with this blade?

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Thanks for the advice and for pointing me towards that thread! I'll try adding some tape.

Ken

An update: I used two layers of tape and did many, many circles. I think it may have gotten a little better, but I'm not sure. Should I try adding another layer of tape? Will that harm anything?

Thanks,

Ken

Keep two or three layers of tape and keep at it. With 4K, it will take a while longer, but your patience will pay off in the end. It sounds like the razor has a little warp or the grind may be a little off, but with some work you will get it into shape. Once you are where you think you should be, lap your 4K and give it one more go to be sure you have the bevel just right.

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Originally Posted by shooter74743

Keep two or three layers of tape and keep at it. With 4K, it will take a while longer, but your patience will pay off in the end. It sounds like the razor has a little warp or the grind may be a little off, but with some work you will get it into shape. Once you are where you think you should be, lap your 4K and give it one more go to be sure you have the bevel just right.

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Ok, thanks! I will give it a try when I get a chance.

Ken

Depending on how bad the warp is, you may or may not be able to "correct" it by honing.

You can also hone the edge, and keep the warp. It won't degrade the shave. The honing will involve both "rolling strokes" (on the convex side) and "off-the-edge-of-the-stone" strokes (on the concave side).

Try a search on "honing warped blade" -- there are several threads, and maybe a video.

. Charles

Thanks Charles! I will keep that in mind as I continue honing this razor. I added a third piece of tape tonight and did many more circles. The spot in question is now making contact with the hone. Not much contact, but contact. Should I make sure it passes the TNT before I remove the excess tape and reset the bevel using one piece of tape? Good to be getting somewhere.

Ken

Question are you taping the whole blade or just the section with the problem( or the section without the problem?) would you tape both sides or just one? And if one, which one?
This warp thing has me confused.
I had one this week that I just got off ebay( not a lot of money) that you just wish you could put into a vise and crank it down and leave for a few days!

If you cant get it I will help you out. Just cover shipping

It's touching hey, well it's able to be honed out, keep at it, i'm sure you'll get it. And That's a great offer by shooter, might be good to get someone to set the bevel and make it shave ready for you then you should be set for the rest of the razor's life. Once the warp is honed out. But this could be a good learning experience!

Nathaniel

Quote:

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Originally Posted by Johnus

Question are you taping the whole blade or just the section with the problem( or the section without the problem?) would you tape both sides or just one? And if one, which one?
This warp thing has me confused.
I had one this week that I just got off ebay( not a lot of money) that you just wish you could put into a vise and crank it down and leave for a few days!

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I'm taping the entire length of the spine on both sides with 3 layers of tape. I don't think the warp on this blade is too bad, just enough to notice and be a PITA on the 4k. If I owned a 1k I don't think it would've taken this long. From my understanding, when it starts making good contact, I can go back to 1 piece of tape and re-set the bevel.

Quote:

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Originally Posted by shooter74743

If you cant get it I will help you out. Just cover shipping

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Thank you very much for the offer! I'm a pretty stubborn guy, and since it's now contacting all along the edge, I'll do a few more sets of circles with 3 layers of tape, then drop down to 1 and set the bevel.

IF, I still can't get it and I have the urge to throw it across the room, I'll throw it in a box instead and send it to you!

Thanks again for the tips and the kind offer,


Ken

Quote:

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Originally Posted by 111Nathaniel

It's touching hey, well it's able to be honed out, keep at it, i'm sure you'll get it. And That's a great offer by shooter, might be good to get someone to set the bevel and make it shave ready for you then you should be set for the rest of the razor's life. Once the warp is honed out. But this could be a good learning experience!

Nathaniel

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It IS a great learning experience!!!! I felt like I've learned a ton from this razor!

When you take the "extra" two layers of tape off, you'll be changing the bevel angle. So your bevel-setting stone will be removing metal where the side of the blade meets the bevel. And you'll slowly expose new metal, until you meet the existing edge. [If you have a 10x loupe, you should be able to see this happening as you grind.]


I don't think it matters whether the edge passes the TNT _before_ you take off the two layers of tape. What matters is that the edge is OK (by whatever test you use) _after_ you take off the tape, and finish with the bevel-setter.

. Charles

PS -- IMHO, warped blades are a bitch to work on. Frowning blades aren't fun, but there's a clear path from "frown" to "straight".