I went up to Salem, OR last night to catch Jimmie Allen of Boxmaster Tools. He has been friends with Eric Loffstrom for some time, and will be taking over officially for Dave Schweitzer at D Way Tools after the first of next year. Interesting demo, and now I have some more experimenting to do.... Both he and Eric sharpen their NRS's up side down, about a 70/25 degree angles, on a 60 grit CBN wheel. That is kind of contrary to most of what I do. You can't argue with the results though, ending up with a 320 or so surface in sugar maple. The 70 degree bevel on the bottom is more blunt than most people use, and is standard for my roughing scrapers, but the upside down burr is another thing. I had tried them before, and it seemed that the upside down burr vanished more quickly than the right side up burr, and not sure about the coarseness of the wheel.... He uses the NRS as his primary hollowing tool on boxes.....
Hmmmmm, another domino cascade for my brain....
robo hippy
Hmmmmm, another domino cascade for my brain....
robo hippy