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mpax356 (August 13, 2008 at 12:59 pm)
This was very informative to me as I just bought a rotary tool and have a blade that will need sharpening soon. I never would have that of using a dremel type tool and the sharpening appears to go very fast.
BucsTex (April 4, 2008 at 6:35 pm)
Very educational, thanks.
DarrellSF (March 29, 2008 at 11:24 am)
The idea for any cutting edge is to have two surfaces meeting at a designated angle. Most systems of sharpening a bandsaw blade use a specially profiled grinding wheel to grind top and back of each tooth at one time. For the small blades we use on shop machines, grinding one surface to meet the other gives a sharp blade that will actually fatigue and break before sharpening the other side is necessary.
dirac007 (March 29, 2008 at 8:49 am)
I am amaze that you grind only the back of the blade. I always thought that we need to sharpen the tooth on the indide not on the back. Could you tell us me more about that?.
DarrellSF (December 1, 2007 at 2:41 am)
I concentrate on the back edge of the tooth, that is the top of it as you look face on. I have used a chainsaw grinding burr in the grinder to clean up the gullet and the bottom of the tooth, but find that the difference is not worth it.
ColonelVandal (December 1, 2007 at 1:51 am)
Interesting. I've sharpened coarser blades with an angle grinder, with limited success. Do you concentrate on the back edge of each tooth, the front face, or is it a combination of the two?
DarrellSF (November 20, 2007 at 2:04 pm)
I can get 3 to 7 sharpenings on a blade. I think I could get more with a larger saw. Mine has 10" wheels and metal fatigue sets in to break the blades while there is still a lot of metal in them. The big help for me is increase in ease of cut with a freshly sharpened blade. I would likely get more sharpenings if I was smart enough to sharpen when the wood needed and extra push.
craftsmanm (November 20, 2007 at 1:52 pm)
Nice one.How many times can you sharpen a blade?Always wanted a dremel, now ive got a good enough reason. |
