Click images for larger view |
|
 |
This project requires one special tool to perform the
texture pattern. Sorby makes this tool along with wheels for spiral
cutting (that’s another project). Homemade versions using a shaft with
a slot cut to fit a small sprocket or wheel from a star grinding wheel
dresser work well. A hole for a bolt or roll pin the wheel can rotate
on is also required as you can see from the picture.
The texturing
wheel is the one beveled on both sides in the shaft now. The points
are dull. The texturing wheel does not cut the wood it compresses
it. The spiral cutters have one bevel only and use a plate attached
to
the shaft to cut spirals of different pitches. |
 |
I always turned my eggs more pointed on one side than
the other did. What I turn is my vision of how I think the egg should
look. The eggs to the left are an ostrich egg and a hen egg. You can
see that both ends of the eggs are about the same shape. Use a real
egg to make a profile template for turning the shape if you want. |
 |
I start by cutting a square of wood long
enough to turn three or four eggs. I turn eggs from the blank without
stopping the lathe until the wood is gone. I turn these eggs at public
demonstrations to give to the children, and grown-ups, who watch. The
finish from the tool is good enough that I do not need to sand. I do
not like to create clouds of dust when I am turning for a group of
people. This project works well as a demonstration of how quick a finished
product comes off the lathe. |
 |
I chuck the square in the chuck jaws. This
centers the blank on the headstock end if the turning blank is square.
I always cut my wood slightly over size so I do not worry about the
exact centering. If this were a table leg with a square section left
in the design I would carefully center the blank. The jaw design on
Oneway chucks hold a square section better than any of the other chucks
I have used. Most chuck jaws would only have two points on the edge
of each jaw to grip the square. With the Oneway jaws, I have two multi-grooved
flat areas per jaw. |
 |
The jaws on the right are Nova chuck jaws. The jaws
on the left are Oneway. |
 |
I center the tailstock end of the blank
by rotating the corners around by hand and adjusting until centered.
Here you can see I use my finger as a fixed point to rotate the corners
past. Once centered I will tighten the chuck securely and screw the
tailstock in. If you screw the tailstock in first and the chuck pulls
more on one side while tightening it could cause a bow in the wood.
This bow is released when the tailstock end is freed and then the egg
would be spinning around off center. This is more noticeable in small
diameter spindles. It is always best to tighten the chuck first and
then seat the tailstock to the natural alignment of the spindle blank. |
 |
Start roughing the blank to round at the
tailstock end and work back toward the headstock. Starting in the middle
could cause sections of the wood to break out along the growth lines.
I am using a ¾” roughing gouge. |
 |
Once the blank is mostly round I use a ¾” skew
to start shaping the egg. The cutting taking place on the lower 1/3
of the edge. This is the area of the cutting edge nearest the tool
rest supporting point. The skew is angled with the cutting edge leading
the cut and the handle of the tool following. Cutting from largest
diameter to smallest on spindle oriented blank.
Spindle gouges work
well for this stage of turning also. I have used the skew a lot and
it is just my preference. |
 |
Cutting the bottom curve of the egg with
the skew. Only turn away the wood needed at this stage for the texturing.
Leave the base area thick to support finishing the egg top. |