Pro-edge video - question on how long grid is formed

Do you have the long grind jig (3 positions for the clamp stem) you then need to set the angle you want for the front of the bevel (usually 45 degrees) but may be more for deep bowls, and let the jig handle the sides. The default jig that comes with Deluxe ProEdge only does the fingernail grind.

Forgot to ask - do you always use 15deg on the back or do you have a variation on this too

Hi Steve

Like you I use the 3 hole Fingernail jig, BUT I only use 45° on Ellsworth, I have 60° on a bowl gouge for deep bowls but that is a standard grind, wouldn't want wings that far inside a piece of timber.  


The Official video shows the 3 stage process clearly. Click Here, I think you may be getting miss-led by Francis's post which is the same video but jumps in after the start. the angles he is quoting are for recovering a damaged tool not the grind angle you want for the wings.

Pete

To get used to my ProEdge, I've been playing around with it and my ProSet gauge and thought I'd share my results. Hopefully this isn't old news to you folks.
I have the 3 hole boss where I understand hole 1 (nearest to the belt) is for a standard fingernail grind (FN below), the middle hole is for long fingernail grinds (FN-L), and the most distant hole is for extra long fingernail grinds (FN-XL). I then made angle measurements using all 12 combinations of ProSet tabs w/all 3 boss holes. Here's what I found:

ProSet 35 tab: FN=35; FN-L=41; FN-XL=47
ProSet 40 tab: FN=40; FN-L=47; FN-XL=53
ProSet 45 tab: FN=45; FN-L=53; FN-XL=60
ProSet 50 tab: FN=50; FN-L=58; FN-XL=65

This makes sense to me as the ProSet is intended for use to establish the standard FN grind so the resulting bevel angles match when using the first hole match the ProSet tabs' marked angles. As I pull the gouge farther away from the belt it touches at a steeper angle. I find this chart useful as I have a a bowl gouge with a 60 degree bevel and XL grind. So now I know I can use my ProSet gauge, set the gouge to the 45 deg ProSet tab, put the jig in the 3rd (most distant) hole in the boss and I know I'll get a 60 deg bevel with the XL fingernail grind I want.

One quirk I noted is that I was getting about a degree less than what the ProSet tabs are marked. I added squares of 1/8" masonite to the tabs to make the extension of my gouges that much shorter and then the standard fingernail grind angles matched the ProSet gauge tab markings. I made all my angle measurements using a properly zeroed Wixey digital angle gauge. I rounded angles up or down to nearest whole degree. I also changed the ProEdge belt angle, re-zeroed the Wixey, and repeated all my angle measurements. They were the same, so I'm pretty confident in my technique.

Hope others find this useful.

Hi Steve,

I am less concerned about angles than repeatable 'cuts nicely' angles so tend to use guestimate backed up by marker pen for setting my tools into the jigs. But good explanations in your post will help others with understanding the ProEdge, thank you.

Pete

Good to have confirmation especially as I'm new to the ProEdge.

Just finished reshaping all my tools from the bench grinder/Wolverine bevels to the ProEdge. Of course, most were just minor tweaks that 120 grit handled well. I just wanted to ensure they were all shaped by the new system as well as practice some with it.

There is one grind I find difficult to achieve. I use a Jimmy Clewes style of grind on a couple of bowl gouges. That is a 60 degree bevel with an Ellsworth grind. I just can't get the Ellsworth grind very far back on the flute as the jig contacts the bed especially on the left side. The right side of the belt is right at the edge of the underlying metal bed so I can lay the gouge over to get that. However, moving left, I can't get far enough over to lay the edge down still on the belt. The tip of the gouge is hanging off the right edge of the belt. Would have liked to keep that grind, but looks like I'll have to live with something closer to 50 deg to be able to get the sweep I want.

Would also have liked to have a 40 deg setting for the tool rests. I can of course get 40 degrees with the gouge jig, but if I wanted a 40/40 grind, can't set the table to that angle. May have to set the table to 35 degs and fashion a shim. Again though, this is a minor inconvenience. I can see I am going to like the ProEdge a lot.

Thanks again for the feedback.

Thanks for the ideas Pete. I usually come up with stuff like that, but the ProEdge perhaps a little too knew for me to have been thinking about drilling through the chassis. LOL Your second alternative (a friction hold) could be augmented with some kind of clamp to form a stop to help hold the stage at the proper angle. Will have to play around with these ideas in the light...