What you will need:
- Permanent marker, fine point
- Round file, about 3/8" in diameter
- Needle file (half round or triangular)
The Basic Pattern
1). Mark the spine with the marker. Alternate left and right. I used 3/8" (10 mm) spacing.
2). Cut semi-circles on the left side every other mark.
3). Cut semi-circles on the right side, every other mark. These are cut the same depth as the left side, but cuts will be shifted ahead by 3/16" (5 mm).
4). With the narrowest edge of a triangular or half round needle file, cut the 'leaves' about 3/32" (2 mm) above each big half round.
5). Repeat the leaves on the right side.
6). Carefully shape the lower portions of the big half rounds to smooth the vine.
And now with pictures...
Start by securing the knife in a vise and cleaning the spine with some sandpaper. Make a mark every 10 mm (3/8") along the spine.
You should end up with something like this.
Now with the half round needle file cut the leaves. These are about 3/32" to 1/8" above the large half rounds. The strokes are kept as close as you to being 45° forward and on 45° downward.
A lot of people ask about filling in or not. Or with what?
Leaving any openings, cracks, slits or any microscopic hiding places is not good for hygienic reasons.
Always prepare the steel surfaces for epoxy by cleaning them with mild abrasive (I like 220 sandpaper) immediately followed by chemical cleaning with acetone or methanol.