Popular Woodworking 2006-08 № 156, страница 20
Tricks of the Trade Sharpening Rabbet Plane Spurs Sharpening the tiny crosscutting spurs, or "nickers," on Stanley-type rabbet and combination planes was a tedious task until I came up with this simple jig. It consists of two components: a V2"-wide x 3/32"-thick x 6"-long piece of stiff steel and a 6-32 x 3/4" round-head machine screw. The steel came from an old filing cabinet file-hanger rod, but you can use any stiff metal bar of about the same size. The screw, which I robbed from an electrical switch, is perfect for the job because of its slim head profile. To make the jig, I drilled a hole V32" from one end of the steel bar, then tapped it for a 6-32 thread. After grinding a V4" radius on the end of the bar, I screwed the spur to it. (If you don't have the proper tap, you can attach the spur with a screw and nut instead.) I mounted the bar in a side-clamping honing jig, which I set to a 30° angle using a draftsman's triangle. Then I sharpened the spur using #100- through #320-grit aluminum oxide sandpaper on glass. The narrow wheel of the honing jig allows me to tilt the cutter side-to-side to help achieve the necessary radius along the end of the spur. I use the jig near the edge of the glass with the adjustment knob overhanging so that it doesn't prevent tilting to that side. After honing the bevel, I remove the spur from the jig and hone the flat face on #320-grit paper. PW Craig Bentzley Chalfont, Pennsylvania FANATICS circle no. 128 on free information card. CIRCLE NO. 121 ON FREE INFORMATION CARD. |
