- Joined
- Feb 13, 2007
- Messages
- 17,764
Sold out, thank you.
These are precision machined of A2 steel and hardened to HRC 61-62. It is 1/16" shy of 8" to fit between the rollers, 2" wide and has the KMG 1/4-20 6.75" center to center mounting pattern. $80 shipped continental US.
There are eight 48" for sale (sold out) and I also have nine 36" for sale (sold out). This is a total of 17 platens which should cover the folks who didn't get one when these sold out so quickly the last time (sorry about that).
In using these platens I have found the effect is subtle, but noticeable. It isn't a flat grind, and it isn't a hollow grind. I believe this is a historically accurate grind for blades ground in yesteryear on really big stones. I see this being a cool grind for blades made in an older style, and blades like kitchen knives that you would want a full height grind on a tall thin blade.
I ground this blade here out quick and dirty, starting on a 10" wheel and then just walked the grind up with the platen. Butch told me he did it the other way around (flat platen, then the curved platen). I ground from 5000 SFM to 1000 SFM. I used a 80 grit Blaze, 120, 220, 400 and scotchbrite. All tracked well. As you can see I set it so only about half the platen was touching. It got hot to the touch, but I could still hold my hand to it. I wanted to try it out before selling it and I'm happy with the way it worked. I did nothing to it, no finishing, just bolted it on.
I ran this second lot of platens slightly different than the first. On the first the mounting hole is a through hole. This time around I thought it would a little nicer to run the mounting holes all the way to the curved surface, but stop short of going through it. The threads are thread milled, so they go all the way to the very bottom of the hole (unlike a tap). I didn't skimp on the steel thickness, so the thread depth is sufficient that your existing mounting bolts should work fine without shortening them because the platen thickness is about the same as the original platen at the mounting holes.
If this platen will fit your grinder and you would like to buy one of these, I need you to please follow these instructions to help me keep up with everything (otherwise folks will fall through the cracks).
1: State what you will be getting in this thread.
2: send me an email (not a private message) njcarothers at windstream dought net
The email should include what size you are buying, your BladeForums handle (i.e.: "Nathan the Machinist"), your actual name, your shipping address and your paypal email address.
I will send a PayPal invoice to that email.
3. Pay the paypal invoice. Once it is paid, I will ship your order to the name and address you gave in your order email.
If you don't want to use paypal, we can arrange to send a check.
I hope there are no shortages this time, but if there are, it will be based upon first come first serve who posts in this thread. I have to do it this way to keep things sane. I tried to make plenty for everybody, so hopefully everybody who wants one can get one.
Thanks,
Nathan
These are precision machined of A2 steel and hardened to HRC 61-62. It is 1/16" shy of 8" to fit between the rollers, 2" wide and has the KMG 1/4-20 6.75" center to center mounting pattern. $80 shipped continental US.
There are eight 48" for sale (sold out) and I also have nine 36" for sale (sold out). This is a total of 17 platens which should cover the folks who didn't get one when these sold out so quickly the last time (sorry about that).
In using these platens I have found the effect is subtle, but noticeable. It isn't a flat grind, and it isn't a hollow grind. I believe this is a historically accurate grind for blades ground in yesteryear on really big stones. I see this being a cool grind for blades made in an older style, and blades like kitchen knives that you would want a full height grind on a tall thin blade.
I ground this blade here out quick and dirty, starting on a 10" wheel and then just walked the grind up with the platen. Butch told me he did it the other way around (flat platen, then the curved platen). I ground from 5000 SFM to 1000 SFM. I used a 80 grit Blaze, 120, 220, 400 and scotchbrite. All tracked well. As you can see I set it so only about half the platen was touching. It got hot to the touch, but I could still hold my hand to it. I wanted to try it out before selling it and I'm happy with the way it worked. I did nothing to it, no finishing, just bolted it on.
I ran this second lot of platens slightly different than the first. On the first the mounting hole is a through hole. This time around I thought it would a little nicer to run the mounting holes all the way to the curved surface, but stop short of going through it. The threads are thread milled, so they go all the way to the very bottom of the hole (unlike a tap). I didn't skimp on the steel thickness, so the thread depth is sufficient that your existing mounting bolts should work fine without shortening them because the platen thickness is about the same as the original platen at the mounting holes.
If this platen will fit your grinder and you would like to buy one of these, I need you to please follow these instructions to help me keep up with everything (otherwise folks will fall through the cracks).
1: State what you will be getting in this thread.
2: send me an email (not a private message) njcarothers at windstream dought net
The email should include what size you are buying, your BladeForums handle (i.e.: "Nathan the Machinist"), your actual name, your shipping address and your paypal email address.
I will send a PayPal invoice to that email.
3. Pay the paypal invoice. Once it is paid, I will ship your order to the name and address you gave in your order email.
If you don't want to use paypal, we can arrange to send a check.
I hope there are no shortages this time, but if there are, it will be based upon first come first serve who posts in this thread. I have to do it this way to keep things sane. I tried to make plenty for everybody, so hopefully everybody who wants one can get one.
Thanks,
Nathan
Last edited:
