Anyone ever heard of this thing? "The Double Grinder"

Double grinders have been around for a long time. The industry uses them to create hollow grinds. There is usually one advertised in Blade mag. I suspect that any good knifemaker can do it by hand for a lot less than $4000. And at $4000 you are locked into one grind size only. You could buy two KMGs and place them facing each other and do the same thing. The belts run backward to normal grinding, BTW.
Stacy
 
Saw that years ago. It looks neat, but I think as Stacy said, it could be kind of limiting. Also, in my opinion pretty simple to build one (did you notice that it's a pair of buffers powering it?) and you could do that for a lot less than $4k.

-d
 
I agree with Bobby and Stacy. Dangerous and a waste of money. Did I read something wrong or does this guy charge 1000.00 a day for knifemaking lessons ?
 
This guy was here before..... lol...

http://www.bladeforums.com/forums/showthread.php?p=2352008&highlight=Bill+McCann#post2352008


I have never heard of Bill McCann and cannot find a single knife he has made on the web. I cannot find any reference to the famous "Iceman" sharpening wizard who won sharpening competitions for 20yrs straight. The only info that comes up is his grinder site and the SPAM posts on BF.

Doesn't seem like terribly complicated technology to me.

Rick
 
Okay, here is my two cents on this product.
I have been making knives for about 5 years, I'm not super productive, in other words its a hobby not an assembly line. This hobby motivates me to learn and try stuff I wouldn't normally have tried. Meeting/talking to really great people was an unexpected bonus. Would I buy a dual head belt grinder for 4000.00 us? No.

though I would love to see Rob Frink take a stab at one of these! (Just a cool cad drawing. Please!)

If I had a contract to produce 500 knives a month. I may think about it. To Bill's credit, his idea is cool. His first entries to the forums, back in 2003 were probably his first exposure to the internet and this forum.

I wish Bill luck, there is a market for this product. I would say mostly in mid volume manufacturing.
 
i've seen similar machine to hollow grind straight razor blades.... .. just can't find the darned bookmark...:confused:
- wasn't their a similar machine that used boron carbide wheels ? for production knives


world champion sharpener ? .. never heard of it... but then again, i don't get out much..;)
 
That's a cool machine, but not worth 4 grand to me. For one thing I almost never hollow grind. If I get into more folders it would be nice, but it doesn't take that long to grind by hand. If I had more time I might consider building something like that but I don't have a need for it or realy much of a use.
 
website in thread said:
And he has cut the time required for making custom handmade knives from 2 days to less than 10 minutes in the hands of an expert. The Iceman's Double Hollowgrinder is the answer to any knife makers dreams.
Click to expand...

I think that even a non-expert can manage to hollow grind a knife faster than two days. I'm guessing they are talking about first grit only, as it would take at least a minute just to switch grits.
 
How would you take up the slack between switch grits?? i think its an awsome grinder!! i would love one.
 
I would love to pay 4 grant to a machine that hand sands in 10 minutes from 400 to 2000. But not to a machine that grinds bevels in minutes, who cares. Even on my primitive slow belt sander, flat grinding takes only 10 minutes for a 5" knife...
 
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