I have been using the lansky diamond system for probably 6 months now and thought I had every trick and process down pat but.... I just can't seem to figure this problem out, I've had hair whittling edges on almost every knife with this system but on my latest knife I have sharpened(zt0770cf) I reprofiled it to a 20 degree and it will whittle hair but the bevel isn't consistently polished. That may sound goofy but that's what I'm getting, the apex of the edge is polished and sharp and is perfect but the top of the bevel where the shoulder is scratched and not polished or refined at all. Any help with trying to correct this would be greatly appreciated, thanks.
-
The BladeForums.com 2024 Traditional Knife is ready to order! See this thread for details: https://www.bladeforums.com/threads/bladeforums-2024-traditional-knife.2003187/
Price is$300$250 ea (shipped within CONUS). If you live outside the US, I will contact you after your order for extra shipping charges.
Order here: https://www.bladeforums.com/help/2024-traditional/ - Order as many as you like, we have plenty.
Trouble with the lansky
- Thread starter Tgriff
- Start date
- Joined
- May 19, 2007
- Messages
- 7,734
Probably one of your stones is out of alignment to the others, or one of the rods is a bit bent. With diamonds, even fine, its easy to take off a lot of metal, especially if its a bit steeper than the courser stone, meaning you are hitting the apex harder. Not sure how you could easily correct it, besides trying to match the bevel, unless you polish them out with a strop of some sort, even very fine sandpaper, but it might not end up looking great.
I would think that could be the problem but I haven't had this problem with any of my other knives. I would try to remove some more metal to see if it refines the bevel more but it may just make it worse I'll look at everything and make sure it's all straight and not out of whack, thanks for the input!
- Joined
- Nov 23, 2012
- Messages
- 23
I'd say your using the other stones , not diamond. They will wear. Id also bet your using the yellow ceramic to polish. It doesn't wear as fast or much at all even like the other stones. This will cause the angle to be different causing the ceramic stone to hit the apex instead of the whole face of the bevel. Just my guess, take it for what it's worth.
Ajack60
Platinum Member
- Joined
- Apr 21, 2013
- Messages
- 8,440
The 0770 has a taper from the spine to the edge.
What may be happening is that the blade is moving in the clamp while sharpening. I tape the blade where the clamp will be. On some blades, a double layer of tape will fill in the gaps where the blade won't move in the clamp. I make sue the blade has no wiggle in the clamp. I've also noticed that during a sharpening, the clamp needs to be retightened depending on the blade shape.
Sounds like you're pushing the knife where it won't get the full bevel.
What may be happening is that the blade is moving in the clamp while sharpening. I tape the blade where the clamp will be. On some blades, a double layer of tape will fill in the gaps where the blade won't move in the clamp. I make sue the blade has no wiggle in the clamp. I've also noticed that during a sharpening, the clamp needs to be retightened depending on the blade shape.
Sounds like you're pushing the knife where it won't get the full bevel.
- Joined
- May 19, 2007
- Messages
- 7,734
It might have only been one shallow pass that put the scratches on there. Not much you can do besides remove more material.
- Joined
- Sep 22, 2014
- Messages
- 2,930
Geez, going from a $50 system to a $750 system to fix a few scratches?
Ya know, there are some talented pros here that offer 'mirror polished' services for a fraction of that.
Geez, going from a $50 system to a $750 system to fix a few scratches?
Ya know, there are some talented pros here that offer 'mirror polished' services for a fraction of that.
Where can I find these pros? Would be cool if there was one in Los Angeles.
- Joined
- Sep 22, 2014
- Messages
- 2,930
They post in the Exchange's Custom Shop: Services Offered subsection ...
http://www.bladeforums.com/forums/forumdisplay.php/870-The-Custom-Shop-Services-Offered
Be sure to explore all of BF's subforums and subsections. There's a ton of info and experience available, free for the asking.
I started with the lansky. A less expensive option than the wicked edge is the KME. I use it on every knife I make and I love it. And I'm picky. Another plus is any 4 inch stone fits in it. It operates a lot like the lansky, but without the shortcomings. I wasn't too crazy about having to buy each stone as a set of two for the wicked edge either.
Their website is kmesharp.com
Their website is kmesharp.com
- Joined
- Feb 27, 2006
- Messages
- 5,191
sounds like an alignment problem. if the wife says no to the other system, lay the stones you use on a flat surface, with the rods installed. make sure the rods are the exact same height off the flat surface , if one is bent just bit higher it will be a different angle and not abrade the entire surface the last stone did, and leave an uneven finish. for lansky clamp slipping/moving, i put a piece of masking tape on each side of the spine before clamping.