Manual

User's Guide — 117
APPENDIX D — IMPORTANT NOTES FOR
OWNERS OF PREVIOUS CONSTRUCTION
MASTERS
®
If you are an owner of a previous Construction Master calculator, the
following list will help you compare several new or enhanced features
available on selected Construction Master Pro calculators.
New/Enhanced Function Description
New Block/Brick, Column,
Footing and Roof Keys
−− New construction project keys have been added for
quickly figuring quantities and costs of materials.
Circle
−− You may now calculate additional circle properties,
including: radius from a circular segment height and
base, degree of arc, chord length, segment rise, pie
slice area and segment area.
Jack Rafters/Irregular
Jack Rafters
−− The value stored in the on-center register –
[Stor] [7] – is used for both Jacks (parallel to the
Common) and Irregular Jacks (perpendicular to the
Common).
−− Based on your Preference setting, Jacks/Irregular
Jacks can be calculated in descending (default) or
ascending order.
−− Based on your Preference setting, Irregular Jacks
can be calculated based on stored on-center spac-
ing or spaced to mate with opposing Jacks.
Memories −− The Pro calculators have three separate memories:
(1) a semi-permanent, accumulating memory in
[M+]; (2) two permanent single-value memories in
digits 1 and 2, accessed using the [Stor] key and
the corresponding digit key.
On-Center Spacing −− A single register – [Stor] [7] – is used to establish
all on-center values; used for Jacks, Irreg. Jacks
and Rake Wall Studs.
(Cont’d)