Scrapers are often misunderstood, and many of us produce mostly dust instead of nice, thin shavings. As a result, this terrific session was included in the WIA program.
Christopher Schwarz, Editor of Popular Woodworking (PW) magazine, does a terrific job in this session. He is entertaining, and has an uncanny ability to convey his message accurately and succinctly. I split this session into three parts, for easier downloading and viewing. This is the high-resolution video (as high as I can get with an old video camera).
This session is Schwarz’s presentation on a topic he researched, and published on the PW blog in April 20, 2007. The published article shows the steps required to properly do the job, and mentions “…a list of 14 different techniques for sharpening this rectangle of steel that have been published since 1875.” In the video he talks about the references he found, from “12 dead guys and 2 living”, and which were the foundation of this work.
For Part 1:
In this first Part, Chris covers the historical background (nothing about sharpening scrapers appears in the literature until 1875), his work on wood failure (Types 1, 2, and 3 shavings, and why tearout occurs), and the first part of scraper preparation: Filing the edge.
The next two episodes will show the rest of the session with Chris, and the wonderful shavings he produces with a well-sharpened scraper.
Here is Chris at the workbench, filing the edge of the scraper near the end of Part 1:
-- Al Navas, Country Club, MO, http://sandal-woodsblog.com