Thinning; Grit for water cooled wheel grinder?

D

drebs

Joined
Dec 6, 2014
Messages
86
Alright, I want to get one of these for thinning behind the edge, I know I know, im going to practice alot with 50+ OLD pocket knives my grandpa left me and some cheapos before I run any of my spyderco's. Anyway it has the option of a 1000 grit and 400 grit ..

1/6 hp @ 420 RMP so once i get to my harder steels, ZDP, M4, S110v, Any advice on which grit wheel to get or both??

I WILL NOT BE SHARPENING WITH THESE Edge pro w congress for that. Just thinning here

Thanks, Drew

http://s79.photobucket.com/user/drewzzer4544_2006/media/Cooler.jpg.html

 
I would not practice on grandpa's old knives, but definetly cheap knives.

When I first started sharpening pocket knives, i bought a tobacco shop gift knife. Still have it haha.
 
I'd run 10 Spyderco knives through that beast before a single inherited knife or any knife in the 50+ year old mark. Let's get this to MTe, that monstrosity doean't look like a knife to me.
 
I'd consider a belt grinder, you might find it slow going on that wheel unless you're only using for changing angles. For really thinning out the primary grind I don't believe that will work as well as other options.
 
RevDevil said:
I'd run 10 Spyderco knives through that beast before a single inherited knife or any knife in the 50+ year old mark. Let's get this to MTe, that monstrosity doean't look like a knife to me.
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Ya when I got all the knives they were badley rusted and corroded and were no brand promotional knifes so I figure the grind will em up too and bring em back to life.
 
HeavyHanded said:
I'd consider a belt grinder, you might find it slow going on that wheel unless you're only using for changing angles. For really thinning out the primary grind I don't believe that will work as well as other options.
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So my 2 concerns about that were overheating the blade which I don't know hot that is? Just keep dipping it in ice water ? And price of you off the top of your head knew of any or would think a <$170 belt grinder would work is be all for that.
 
drebs said:
So my 2 concerns about that were overheating the blade which I don't know hot that is? Just keep dipping it in ice water ? And price of you off the top of your head knew of any or would think a <$170 belt grinder would work is be all for that.
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I have reprofiled quite a few knives with my 1x32 Harbor Freight belt sander. As long as you don't touch the very edge/apex and keep the blade cool enough to be able to touch it you will be fine. The thicker and larger the knife the better (heat sink). Certainly a slow speed belt grinder with cooling mist and cooled platen is best for this, no question.
 
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I would agree you would be better off with a belt grinder. A Kalamzoo with a Mark Reich platen in the long run would be a better investment.
 
pjwoolw said:
I would agree you would be better off with a belt grinder. A Kalamzoo with a Mark Reich platen in the long run would be a better investment.
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Ok I didn't know what a platen was, so I looked it up. So it's essentially a bar behind the belt that you can use as a flat edge? The ones I was looking at had platens, so I googled mark reich platen and didn't find anything. What are the advantages and do you know where I could find one online?

Thanks for the reply I'm leaning towards a belt grinder now
 
drebs said:
Ok I didn't know what a platen was, so I looked it up. So it's essentially a bar behind the belt that you can use as a flat edge? The ones I was looking at had platens, so I googled mark reich platen and didn't find anything. What are the advantages and do you know where I could find one online?

Thanks for the reply I'm leaning towards a belt grinder now
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If you are seriously interested in a wet grinding belt sander set up I suggest you go here http://www.bladeforums.com/forums/forumdisplay.php/741-Shop-Talk-BladeSmith-Questions-and-Answers and ask your questions about recommended tools.
 
awestib said:
I have reprofiled quite a few knives with my 1x32 Harbor Freight belt sander. As long as you don't touch the very edge/apex and keep the blade cool enough to be able to touch it you will be fine. The thicker and larger the knife the better (heat sink). Certainly a slow speed belt grinder with cooling mist and cooled platen is best for this, no question.
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Close, but not quite. It's very possible to burn an edge and have the blade still cool to the touch. Fresh belts, rapid passes, and misting the blade with coolant all work to prevent burning. :thumbup:
 
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