User Manual

U SER ’ S G UIDE — 15
Column/Cone Key
The Column and Cone functions help you quickly estimate volume
and surface area of columns or cones.
Ç C Column and Cone — With an entered diameter
and rise, the first and second presses of C (follow-
ing Ç) will calculate the total volume and surface
area of a column ; the third and fourth consecutive
presses of C calculate the total volume and sur-
face area of a cone .
Compound Miter/Crown Moulding Keys
The Construction Master Pro also calculates compound miter cut
angle solutions for cutting and installing crown moulding on a wall.
The Compound Miter function can also be used for finding angle
cuts for many types of compound miter problems, such as siding,
railing and trim.
 Compound Miter — With an entered crown angle
and wall corner angle*, consecutive presses of Â
will calculate the following:
Press Result
1 Miter Gauge (0° reference)
2 Miter Gauge Angle (90° reference)
3 Blade Tilt Angle
4 Butt Blade Tilt Angle
5 Redisplays Stored Crown Angle
6 Redisplays Entered Wall Angle
*Note: Wall Angle entries of less than 25 into  will be assumed
to be the number of sides; in this case, the calculator will calcu-
late the unknown Wall Angle first, then proceed with the above
angle calculations.
ß Â Store Crown Angle — Stores a value other than
the default crown angle of 45° (e.g., 3 8 ß Â
stores 38° crown angle). This value is permanently
stored until you change it or perform a Clear All
(Ç x). To recall the stored setting, press ® Â.
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