Made a hollow grinding jig for scythe blades!

FortyTwoBlades

Baryonyx walkeri
Dealer / Materials Provider
Joined
Mar 8, 2008
Messages
25,979
Grinding on a wheel provides a particular challenge in that you have to hold a consistent position or else the angle of your grind changes. Various jigs exist for 10" wet grinders but they're all designed for straight or upswept edges rather than forward-curving like scythe blades--even the mighty Tormek lists scythe blades under items that they tell you to grind freehand. But creating a good hollow is critical to mowing with ease, so I whipped up this little jig for my Grizzly G1036 to make the task easier. Bent steel round stock with the ends flattened and drilled and acetal bushing stock used for the rollers. The stone turns in the direction of the tool rest (which I clamp a dressing tool to for truing the wheel and otherwise don't use) so it pulls the blade into the rollers, keeping the blade in the same spot on the wheel and allowing me to more easily hold a consistent angle as a result.

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I have a video uploading now, but it won't be done until this evening, unfortunately.
 
[video=youtube;zypSPra29gs]https://www.youtube.com/watch?v=zypSPra29gs&feature=youtu.be[/video]
 
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