CNC belt grinder

I see plenty of people hollow grinding now days Bill. In fact I've read enough to make me think I'm missing the boat a little. Having slid into a making a lot of kitchen knives I just haven't really had the need myself. But I have a 10" wheel I picked up with my grinder that I'd like to put into use someday...

I think I might be a below average maker because it takes me a lot longer than that. Would one of you guys be willing to demonstrate a 60 second basic hand grind for me? I would love to see a video of that.

In fact, if anyone wants to come show me in person at my shop I'll offer a permanent full time position here at our company to anyone who can do a good finished hand grind in under ten minutes.

I don't remember how long it is but Nick W has a video out there where someone must have commented he can't grind freehand or something. All I remember is him saying that someone called him out and him showing how he can grind a bowie freehand and I'm pretty sure it was quick. Probably not in 60 seconds and I don't know if it was up to his level of quality, but I've seen some impressive grinding speeds from him and others at his level. The problem is its almost always a demonstration and I doubt most put as much effort into grinding when demonstrating techniques. No real need to when you're showing someone how to hold a knife when grinding. Something that just occurred to me is that I bet Andy at fiddleback has some good insight into this.

Regarding the CNC grinder, several years ago I saw a video about Chris Reeves where towards the end of it he was showing the guy interviewing him a new machine he was working on. It was a CNC stone wheel wet grinder that he was going to use to grind bevels if I remember correctly. I know he said it was his own invention. I'll see if I can find the video, it was interesting and I wonder if he ever got it working well enough to put it into production.

-Clint

EDIT:
I think this is the video. I didn't have time to watch it all but I scanned it until I thought I saw the machine I recalled and I think he is talking about it around 7:30 into the video. Either way its a fascinating watch and reminded me why I respect him.

 
Last edited:
Now , look what I found ...........I imagine this CNC something like this ......... go forward to 45 sec ...

I suggest you spend some time in a 3D modeling program - because you'll need to do this anyway to program your CNC grinder once you build it. Create a computer simulation of your intended plan that includes the motion of the table, the motion of grinding head, the fixturing - and make sure you account for deflection. At that point, you'll have a clear picture of what is involved and what is within your abilities and resources.
 
I know he said it was his own invention. I'll see if I can find the video, it was interesting and I wonder if he ever got it working well enough to put it into production.

What? He did not say the machine was his own invention. He gestured to the machine to his left and said "Here is our grinding machine." Then he turned to his right, picked up a knife blank and said "So this technology that we have developed that is way more advanced than anybody else in the knife industry. It gives us a surface finish that is extremely fine and refined."
 
Back
Top