Attendance: Joe, Paul, Chris, Wilson, Naq, Miles, Robert, Roy
Leo discussed drill bit sizes and types. Twist bits come in inch sizes eg. 1/32,
1/16, 1/8 etc
Sizes in between this are given numericals from 1 to 80
1 is about 7/32
Sizes in between this are measured in Letters from A to d
Leo went over the method of sharpening various bits.
The Drill Doctor is a gadget that can be used to sharpen twist drill bits.
Measuring the volume of a barrel:
The barrel sides are formed by the arcs of a complete circle on each side.
Magenta line is the height H
Green is the barrel diameter (the radius of the circle that forms it )
Formula( H x D)/2 = gives volume in quarts
Divide by 4 to get volume in gallons
Next we continued on the Urn project.
11.25• angles x 4 is 45 degrees
45•
When making the strips for the body of the urn, use this trick. Cut one extra strip and use it to play with the angle .
The angle subtended by glueing two short pieces of the strips of wood together should make a 45 degree angle. Use this trick to make fine adjustments in the stave belly strips that you cut : i.e change the angle of the saw blade until you can make a 45 degree by gluing the two together.
Then cut all the strips on the saw and glue them up as was demonstrated at the last class. Plane the sides in the sled we made.
Leo helped fix Paul’s project pieces so that they glued together correctly.
Leo demonstrated how to make your thickness planer be a jointer:
Make a platform that is 12 inches wide (if you have a 12 inch planer. The best way to do that is use a core box technique of gluing it up so that it will stay flat over time and not warp.
This platform is used to lay the workpiece board on. Use shims to steady the workpiece. Tape the shims in place. Once it is fairly solidly arranged, run it through the thicknesser and you will have jointed the top face of your board.
Styrated sand paper is best for sanding finishes like laquer.
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