To end the year, my students have been making simple marking gauges. My students learned to create a mortise and use hand planes to fit a tenon in this particular project.
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Here’s how we did it.
1. Cut a 1″ or 3/4″ square oak strip into 8″ lengths.
2. Cut a 2″ length from a maple strip about 2″ wide, giving you a 2″ x 2″ square.
3. Use the oak strip to mark your mortise in the center of the maple square. We did this by marking two diagonals across the maple square and then eye-balling the center. Mark the square with a mechanical pencils. If you feel really competent, use a try square to wrap the edges of the mortise around to the back side of the maple square.
4. Drill a pilot hole through the center of the mortise (in the waste section).
5. Use a coping saw with the blade threaded through your pilot hole to cut out the mortise.
6. Clean up the mortise with a sharp woodworking chisel.
8. Fit the tenon to the mortise – use a plane to trim the tenon enough to slide with some resistance.
7. Drill hole for the thumbsrew with a 7/16″ twist bit. Move the drill in a circular motion, widening the hole slightly.
8. Hand tighten the thumbscrew into the tenon.
9. Use a nail to drill a pilot hole through one end of the tenon.
10. Hammer a nail into the pilot hole. Clip the nail short.
11. Use a file to shape the pin into a blade shape. Do this by filing one side flat (the side towards your fence) and angling a mill file to make a spear point pin.
Click to view slideshow.Image may be NSFW.
Clik here to view.
Image may be NSFW.Clik here to view.
