Thread: Slowing down a Grizzly

Originally Posted by Atchbo

Well, I probably won't take on this project just yet but I can confirm that the Grizzly with a 36 grit ceramic belt moves through steel in a _fast_ kind of way.

I ground a 1.25" by .25" blade in about an hour. Much less time for mistakes than the bench grinder, and I can see slowing it down one day. I'll need more room to lean the arm back though, and that will have to wait till we move (for kids, dogs etc, not just my hobbies).

Yeah, a 36 will do it. You get a Cubitron? I will usually profile with a 36, but then rough with a 60 or 80 (Hermes makes a great 80). It's easier to get rid of the scratches with a 60 or 80, even though it takes longer.

This blade was ground on a bench grinder and a 1x42 Rockwell with various grit belts. The one that amazed me was the Trizact belt from Lee Valley. I'm not sure if they still sell it, but it went through steel like butter, and wore down to a nice mellow shaping belt when it was almost done. I think part of the reason my grind was so wobbly was the fast belt speed and narrow belt, but that work was done a year ago. I don't get much time in the shed.

I'm going to try a finer belt on the 2" and see if I can rig up a slower drive.

Fascinating journey.

Always go hunting with someone who runs slower than you do,,,,