robo_hippy
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I do know that I mention it in my sharpening video, but haven't done the NRS video yet... There are two 'styles' of the NRS, one has the same angle grind on both sides, more resembling a skew, and the other has different grinds, most seeming to be in the 70/30 range or so. With the skew type ones, you just set the angle on your platform. Grind the old burr off, which is the side you will be using up, then grind/raise a new burr by grinding the other side. Most of mine are in the 30/30 range. For the 70/30 ones, I use the same process, so grind the 30 degree angle first, then grind the 70 degree one second. This style, I generally prefer the raised burr with a carbide burnishing tool rather than the grinder burr.
The NRS with the skew type grind is a high maintenance tool. I do show one short clip with it at the end of the shear scraping video I have up in the video section here. With a 1/4 round profile, you can make one sweep from center to rim of about a 10 inch bowl, starting with the pointed nose, and finishing with the rounded heel, and the burr is gone. If you are trying it with a very hard wood, the burr most likely will not make the full cut without a second sharpening. In use, you just barely touch the edge to the wood. If you have to push at all, the edge is dull.
The 70/30 with a burnished burr is far more durable. The 30/30 type does not burnish as well due to the acute angle and fragile edge.
robo hippy
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