Some plane blades are too wide to sharpen with my honing guide. Instead, I use this shop-made guide. It’s made from a glued-up wood block cut at an angle to match the bevel of the plane blade. With the guide sitting on a flat surface, place the plane blade on top, bevel side down, and tighten the threaded knob. Roll the guide back and forth on the abrasive surface to sharpen. Loosen the knob and adjust the blade to maintain contact with the surface if needed. Go to the next slide to see how I made this jig.
Two inner pieces (fender pieces) are notched to house nylon wheels, while a knob and washers on top hold the plane blade in place. They're sandwiched between the outer pieces as you see here.
These patterns provide all the information needed to make the body of the jig. The previous drawing shows how they're arranged.