The challenge is forming a nice cutting edge, or burr, on the scraper. You can do this freehand, but to do it consistently, I find it best to use a scraper-sharpening jig, like this one. It has a number of features that make it the perfect choice for super-tuning your scraper.
This is a link to a Google 3D SketchUp drawing for a jig I use to sharpen the terminal part of the face (non-bevel side) of a plane blade. You will need the SketchUp software to download this drawing and its freely available online. We do not provide support for this software. Not all drawings have the measurements displayed but you can use the measurement tool in SketchUp to easily and accurately determine the dimensions of each lumber part. Most drawings do not have instructions, its assumed you can build it based on the completed drawing provided.
This ShopNotes magazine issue covers projects and articles such as Drill Press Table Counterweight, Pipe Clamp Rack, Radial Arm Saw Return, Random Orbit SSanders, Hand Plane, Portable Miter Saw Station, Sharpening with Sandpaper, Seven Shop Tested Solutions (Frame and Panel Jig, Sanding Belt Storage Rack, Tip for Clamping Edging, Plugging Mortises, Peel and Stick Veneer Tip, No-slip Waterstones, and a Guide for Power Sanding), plus a discussion on Plywood Grades (various grades and uses).
By Joe in a Cleveland Suburb - A couple of weeks ago I asked about making your own sharpening jig. You all pointed me to several resources. I put all that together and came up with this version. All I did was take scrap pieces of walnut, a couple cherry plywood shorts, and some scrap poplar, glued and screwed it all together and here it is! (Not dimensions, and little instruction, but there are good pictures. Enough info to help you make your own.)
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