Does anyone know the sharpening coordinates on a tormek machine for an Irish bowl gouge profile?
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- Thread starter Fran Ferrer
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An excellent resource for this sort of information is the Sharpening Handbook. I don’t know if this specific grind is documented, but there are many that are documented.
Not sure how you define irish bg profile. I do an Ellsworth/Michelson combination - ~ 60 deg with long wings like Ellsworth, with larger angles on the wings like Micheslon. Hole A, JS = 6, proj 75mm. I relieve the bevel like a Michelson, leaving ~ 1/16” main bevel, which grows with resharpening. The length of the wings is a function of how far the tool is rotated with the svd-185/186 jig.
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Do you have one ground as you like? If so, you may be able to duplicate the grind by trial and error. I paint the bevel with a blue sharpie, set up the jig angle and bar distance till turning the wheel by hand scratches a line at the tip of the bevel, then swing the tool and repeat to check the wings. This sometimes requires several iterations of adjusting the jig angle. There is a diagram in the Tormek manual that gives the settings for many grinds, but they don't give the grinds names. And the Sharpening Handbook Jim provided is amazing - I need to bookmark that!
But I have no idea what defines an "Irish grind". The Tormek jigs are good for many tools but some special grinds are best, and maybe only, done by hand with support from a platform or rod rest. I don't know about other systems - I use only the Tormek and Oneway jigs for gouges, freehand for everything else.
Just curious, what is special or different about the "Irish grind" compared to others?
JKJ
But I have no idea what defines an "Irish grind". The Tormek jigs are good for many tools but some special grinds are best, and maybe only, done by hand with support from a platform or rod rest. I don't know about other systems - I use only the Tormek and Oneway jigs for gouges, freehand for everything else.
Just curious, what is special or different about the "Irish grind" compared to others?
JKJ
Glenn Lucas probably does, but I think he charges for the sharpening cards with the specific settings on them.
There is a Tormek forum. Might be worth signing up if you have one of their machines?
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Great forum, thanks for the link!
@Fran Ferrer wet sharpeners are designed for SHARPENING, they suck loudly for grinding - excruciatingly slow. They do excel at sharpening though.
Using a bench grinder with a coarse wheel (I use 46gr), and the tormek bgm-100 tool bar & support, allows shaping etc. Thegouge jig settings work the same with a bench grinder and wet grinder (using the tts-100 to set bar distance). I use this method to create a secondary bevel, then create the primary on the wet sharpener.
Using a bench grinder with a coarse wheel (I use 46gr), and the tormek bgm-100 tool bar & support, allows shaping etc. Thegouge jig settings work the same with a bench grinder and wet grinder (using the tts-100 to set bar distance). I use this method to create a secondary bevel, then create the primary on the wet sharpener.