|Forum topic by chrisstef||posted 08-02-2013 03:30 PM||3895 views||0 times favorited||9 replies|
08-02-2013 03:30 PM
Im just getting started in filing my own hand saws and have a question to you folks out there with some sharpening experience. Here’s the situation … im about to start work on a 12” 14 ppi Disston backsaw. Its a special saw to me as it was my grandfathers, it feels great in my hand, and would like it to be my go to saw for cutting joinery from dovetails to tenons. In essence it would be considered a short sash saw.
Ive been reading up on sharpening a rip saw with a bit of fleam to it. Hybrid filing I suppose. Traditionally rip saws have zero fleam. Ive been pondering filing this saw with 8-10 degrees of rake and possibly 8-10 degrees of fleam. This would allow it to both rip easier and cross cut in a pinch.
My question is when do I begin to file the fleam to the teeth? Should I shape the teeth like I would any rip saw using no fleam and reshaping just the rake angle, jointing, and then filing the fleam in during the last phase of sharpening? Or do I file in both rake and fleam during the initial shaping process, joint, then sharpen?
I guess I could simply file it with 10 degrees of rake and see how it cuts for me. If I don’t like it could I fall back and add the fleam?
-- "there aren’t many hand tools as awe-inspiring as the #8 jointer. I mean, it just reeks of cast iron heft and hubris" - Smitty