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Knowledge You Can Build On — Est. 1998

Combination Press Plough Plane

flat bevel versus hollow grind

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flat bevel versus hollow grind

#1

Jack Guzman from Maine

flat bevel versus hollow grind

Jack Guzman from Maine

I have two 1" belt sanders I use to touch up my roughing gouges. One coarse,one fine. I keep them set up to my preferred angle and it is a quick process to keep them sharp while turning chair legs. I am going to purchase the one-way wolverine sharpening jigs for my bench grinder. What I am wondering is is there any advantage to a hollow grind on my roughing gouges. I am getting the wolverine mainly because I don't have a practical repeatable way to sharpen my other turning tools. Just wondering if I should keep touching up the gouges as I am or start putting a hollow grind on them with the new jig.---Jack

Re: flat bevel versus hollow grind

#2

Re: flat bevel versus hollow grind

Greg Haugen

Unless you're honing afterwards, there's not a real big difference, if any. For skews, a hollow grind is nice because there's less steel to hone the edge-just the front and back edge of the bevel. Repeat-ability and edge geometry are more of a necessity.

Re: flat bevel versus hollow grind

#3

Re: flat bevel versus hollow grind

John C Lucas

That's exactly what I found. The hollow grind is good if you hone. I noticed only slight differences in flat grind ,hollow grind, and convex grinds as far as handling. They each had pros and cons when it came to sharpening. I have a 1" strip sander set up to sharpen along with an 8" CNN wheel with wolverine jig and an aluminum oxide wheel with a platform for hand grinding. I'm trying to learn the differences. Right now I am sharpening one of my roughing gouges on the sander with a 320 belt. This one I use for my mirror handles and grind it to 45 degrees. It will leave a finished cut if I want. For a while I was switching back and forth between the sander or my 180 grit CNN that left a concave grind. There was vitually no difference in handling and a dry subtle difference I the do ish left on the wood. '

Re: flat bevel versus hollow grind

#4

Damn phone

John C Lucas

It won't let me type " see be in" it always corrects it to CNN. I have auto correct turned off. Lord knows I don't want to be associated with CNN. And that's a joke so don't jump on me.

Re: flat bevel versus hollow grind

#5

Re: flat bevel versus hollow grind

Barry L Elder

Whichever grind works best for you. We are all different!

Re: flat bevel versus hollow grind

#6

Re: flat bevel versus hollow grind

David Walser

Jack -- If you like the flat grind (which is what Sorby's Pro Edge system produces), you can set up your Wolverine jig to work with your belt sander. Or, if you haven't bought the Wolverine yet, you could buy just about any of the sharpening jigs to use with the sander. Then, all your tools would have the same style bevel.

Re: flat bevel versus hollow grind

#7

Jack Guzman from Maine

Re: flat bevel versus hollow grind

Jack Guzman from Maine

I looked at Sorbys system and it is pricey. So I went ahead and ordered the wolverine.---Jack

Re: flat bevel versus hollow grind

#8

Re: flat bevel versus hollow grind

Don Stephan

The Robo Rest platform system is very repeatable and angle changes take seconds. It makes freehand platform sharpening an achievable goal.