I am going to build some utility type of blades which will have hollow ground cross-sections and very utility (Ruana / Randall) finishes. I would like some input on how anyone familiar with this blade geometry and finish does it. I have bushings and flanges being built to mount both ten and twelve inch wheels (100 grit Aluminum Oxide)to an arbor which will be driven at 1725 rpm. That's as much as I know. I plan on building a platen to rest the edge of the blade on as I draw it across the face of the wheel - thinking this is how to get a very straight grind. I have seen grinds which both continue straignt (Randall) and also those that curve up to match the curvature of the cutting edge (grind lines that stay perpendicular to a tangent line of the edge). I'm getting better at freehand grinding but why make life difficult? And I have a Beartex (AlO2, 9 hardness) wheel which seems to give close to a Ruana finish on the blade, comming directly from the 100 grit wheel.
Could I get some other views on the process / tooling used?
Thanks,
Ed
Could I get some other views on the process / tooling used?
Thanks,
Ed