I have posted a couple of threads in the Sharpening Forum but thought I might get a better response here.
Firstly: I made my own version of the Robert Sorby Pro Edge system on my Hafco 12'disc/belt sander. Worked very well -to a point. I found that the gouge holding jig was rubbing on the belt when rolling the tool right ove for a fingernail grind. A problem I could not readily solve so I abandoned this.
Secondly: I have a Heligrind that I had previously used to give a great edge on bowl gouges. However this jig only does a standard grind. You simply cannot do a fingernail grind with it.
Thirdly: The Heligrind had a bar onto which a table and the gouge jig fit. I found that I could put the jig set-up I had made for the Sorby type gouge on this bar. This allows it to operate like a Tormek, but from the front and not above.
My problem is that I have a Blue Max Wheel. While I can get a great shape to the fingernail grind the wheel is too coarse and the edge on the wings ends up with a scallop. This seems to be due to the coarseness of the wheel. The edge is great but the scallop is problematic.
I am thinking of going to a pink or white alox wheel. The trouble is that a 120 grit pink wheel only comes at
25mm wide. A recessed 80 grit comes at 40mm wide.
I am wondering if 80 grit is fine enough to do the job and not leave a crumbling edge and therefor a scallop.
Firstly: I made my own version of the Robert Sorby Pro Edge system on my Hafco 12'disc/belt sander. Worked very well -to a point. I found that the gouge holding jig was rubbing on the belt when rolling the tool right ove for a fingernail grind. A problem I could not readily solve so I abandoned this.
Secondly: I have a Heligrind that I had previously used to give a great edge on bowl gouges. However this jig only does a standard grind. You simply cannot do a fingernail grind with it.
Thirdly: The Heligrind had a bar onto which a table and the gouge jig fit. I found that I could put the jig set-up I had made for the Sorby type gouge on this bar. This allows it to operate like a Tormek, but from the front and not above.
My problem is that I have a Blue Max Wheel. While I can get a great shape to the fingernail grind the wheel is too coarse and the edge on the wings ends up with a scallop. This seems to be due to the coarseness of the wheel. The edge is great but the scallop is problematic.
I am thinking of going to a pink or white alox wheel. The trouble is that a 120 grit pink wheel only comes at
25mm wide. A recessed 80 grit comes at 40mm wide.
I am wondering if 80 grit is fine enough to do the job and not leave a crumbling edge and therefor a scallop.
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