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I start
by making a
simple sketch of what the bowl will look like; knowing
that the idea
will likely evolve dramatically during the process.
I use
a
computer aided design program to
draw the profile and generate
the
vital
coordinates. Using this approach, I can create any slope or curve for
the side wall. This is a great advantage over other
techniques.
In
the table below, the X and Y columns represent the number of degrees
subtracted from 90.
If X is the tablesaw blade, 90 degrees is defined as straight
up, and if Y is
the miter gauge face, then it is 90 degrees when it is perpendicular to
the
tablesaw blade. These values can be switched if the block is rolled
over. .
| ring |
height |
radius |
side |
slope |
X |
Y |
| 7th |
1" |
2.5" |
1.29" |
90' |
0 |
0 |
| 6th |
1" |
6.90" |
3.57" |
90' |
0 |
0 |
| 5th |
2.35" |
7.5" |
3.88" |
73.30' |
4.3 |
14.37 |
| 4th |
2.15 |
7.5" |
3.88" |
82.03' |
2.09 |
14.86 |
| 3rd |
2.42" |
7.22" |
3.74" |
69.19' |
5.33 |
14.25 |
| 2nd |
2.98" |
6.46" |
3.34" |
54.63' |
8.7 |
12.22 |
| 1st |
1/2" |
5.04" |
2.61" |
90' |
0 |
0 |
| base |
1-1/2" |
4.58" |
2.37" |
90' |
0 |
0 |
The
next step, cut
the blocks
