|Forum topic by Pendragon1998||posted 05-08-2015 06:54 PM||4305 views||0 times favorited||7 replies|
05-08-2015 06:54 PM
(First, let me say I am new to saw sharpening, so I may be to blame here. If so, please let me know what I’m doing wrong.) I recently sharpened my first saw, the Veritas 14 TPI dovetail saw, and had no problems. I used a Bahco saw file of appropriate size (the depth of the teeth was a little less than half the width of the file face). The saw cut better after sharpening it, and I felt a little more confident.
So I moved on to a new-to-me Disston D-8, 26”, 8 TPI saw (manufactured between 1896-1917). It was advertised as a crosscut on ebay, but when I got it, it looked like the previous sharpener had basically made it into a rip saw configuration. I decided to continue with sharpening it as a rip saw.
I followed Paul Sellers’ approach to sharpening. I jointed the saw aggressively because the teeth were pretty uneven in height, then proceeded down the blade using a brand-new Bahco Portugal Slim Taper file (#1 in the image). By the time I was done, it was screeching badly, even though I’d changed up sides of the file halfway down. The saw was sharper, but didn’t seem as sharp as it should be (still had some flats on the teeth), so I took another pass down the saw with another brand new file, this one a Bahco Portugal X-Slim Taper file (#2 in the image). I had to switch to a new edge on the file at 1/3 and 2/3 of the way down the saw, and it barely finished the job. Considering the saw was nearly sharp to begin with, I’m not happy about that.
Take a look at the missing teeth on the two file corners. I asked Paul Sellers about this in the comments on one of his recent posts and he graciously answered, suggesting that I might have a saw with unevenly tempered teeth. Is this unusual? I don’t think I’m going to buy any more Bahco files in the future if I can barely get one sharpening out of them. It doesn’t seem much better than what I’ve read about Nicholson Mexico-made files.