Reply by runswithscissors

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Posted on DIY Sharpening Rig

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2752 posts in 2025 days

#1 posted 01-19-2013 02:56 AM

I have used a similar setup to sharpen planer and jointer knives. The knives are clamped in a jig made out of 1/4” aluminum plate, which then runs in a “trough” consisting of 1” angle iron welded to a bracket that bolts on in place of the sander’s fence.

In my experience, there is no need to reverse belt direction, as long as the handle of the tool, or blade holding jig, can’t kick out at the bottom. When you lean your tool into the belt, the existing bevel prevents digging in, assuming you’ve set up your jig correctly.

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