And, just so you don't think I'm a closet Nossaman, I got the idea for the jig after taking a class with Hand Plane Wizard, Christopher Schwarz (author of many books, including "Handplane Essentials," and "Workbenches"). He uses one and I was allowed to use it (along with some other really nice tools) and I really liked the idea, so I made one. William R. Monroe On Mon, Oct 11, 2010 at 7:02 PM, William Monroe <bill at a440piano.net> wrote: > Hi David, > > On my jig with my holder, the distances for plane irons are: > 20 degree 70mm > 25 degree 52mm > 30 degree 39mm > 35 degree 29mm > > Chisels: > 20 degree 54mm > 25 degree 40mm > 30 degree 30mm > 35 degree 22mm > 45 degree 11mm > > > Having listed all that, the important thing to consider is that the > distances for a specific angle are determined both by your particular set of > chisels/plane irons, and by your holder. A thicker or thinner blade will > change the distances, as will the position on the holder. I determined my > angle by placing my tools in my holder, zeroing out the Beall Tool Tilt Box > on the bench, and then reading the angle with the Tilt Box on the tool, > adjusting as necessary to get a specific degree bevel for the tool. > > It is not strictly important that your stops be perfectly parallel to the > edge of the jig that mates with the tool holder. It's just a stop, and > provided you register your blade "always on the left" or "always on the > right" it won't matter that it's not square; I did do my best to make them > square on my jig, however, because that's the way I wanted it. > > Another important consideration is that whether you sharpen a primary bevel > at 25 degrees or 26 degrees, or 25.327degrees is not important at all. What > is important is that once you make the jig, you have a simple method for > duplicating a bevel on your tools. > > And because the request was made, here's another image that shows the angle > markings on both sides. They are the same as those listed above. > > William R. Monroe > > > On Mon, Oct 11, 2010 at 9:07 AM, Brown, David <dcbrown at mail.smu.edu>wrote: > >> William- >> >> I use that homing guide as well. Can you tell us the distances on the jig >> for the different angles? >> >> Many thanks- >> >> D >> -- >> David C. Brown RPT >> Piano Technician >> Division of Music >> Meadows School of the Arts >> Southern Methodist University >> Dallas Texas 1-214-768-3976 >> dcbrown at smu.edu >> > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20101011/157f150e/attachment.htm>
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