wagon willie
07-30-2016, 1:36 AM
I have been making small, medium and big ugly tools, mostly scrapers, but also other shapes like a fluteless gouge. I love that they stay sharp for a long time right off of my aluminum oxide wheels, but not quite as sharp as my HSS tools, which lose their burr or edge fairly quickly. It's a good trade off in my book, and when I need a really sharp tool for finish cuts then my Tormek gets gouges and other tools very sharp after they have been shaped elsewhere.
OK, so I talked to Ken at Woodturner's Wonders and have read what Reed Gray has to say on his site and watched his videos, but I still don't know if I can sharpen my "hybrid" Uglies on CBN wheels without loading the wheels. Ken was ambivalent, but he has not tried the Big Ugly that he got from Reed as yet. Reed and Ken both say to not use the CBN wheels with softer steels, like the cold rolled steel that I silver solder my Tantung bits to. Reed suggests that the CBN wheels can be cleaned up after "abusing" them with soft steel by grinding hard steels like V10 or other CPM steels. Since I'm grinding really hard Tantung and pretty soft cold rolled steel at the same time will I be OK, or will I just load up the wheels quickly? If they do load up is cleaning them constantly too time consuming as opposed to using something like Norton's SG wheels instead? I'm considering getting the 80/180 combo pack that Ken offers. Reed, you're probably the most knowledgeable about both CBN and Big Uglies, so I'm hoping you'll weigh in here. I'd love to get other comments from anybody else too!
Also, on a vaguely related note, has anyone tried to burnish Tantung with a carbide burnisher? Results?
Thanks! I'm new to woodturning and I'm trying to get up to speed by watching videos and reading stuff on the 'Net. One lesson so far.....
OK, so I talked to Ken at Woodturner's Wonders and have read what Reed Gray has to say on his site and watched his videos, but I still don't know if I can sharpen my "hybrid" Uglies on CBN wheels without loading the wheels. Ken was ambivalent, but he has not tried the Big Ugly that he got from Reed as yet. Reed and Ken both say to not use the CBN wheels with softer steels, like the cold rolled steel that I silver solder my Tantung bits to. Reed suggests that the CBN wheels can be cleaned up after "abusing" them with soft steel by grinding hard steels like V10 or other CPM steels. Since I'm grinding really hard Tantung and pretty soft cold rolled steel at the same time will I be OK, or will I just load up the wheels quickly? If they do load up is cleaning them constantly too time consuming as opposed to using something like Norton's SG wheels instead? I'm considering getting the 80/180 combo pack that Ken offers. Reed, you're probably the most knowledgeable about both CBN and Big Uglies, so I'm hoping you'll weigh in here. I'd love to get other comments from anybody else too!
Also, on a vaguely related note, has anyone tried to burnish Tantung with a carbide burnisher? Results?
Thanks! I'm new to woodturning and I'm trying to get up to speed by watching videos and reading stuff on the 'Net. One lesson so far.....