Calculated Industries MACHINIST CALC PRO Manual de usuario

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MACHINIST CALC™ PRO

The Machinist Calc™ Pro Advanced Machining Math and

Reference Tool (Model 4089) provides fast, precise solutions for

your every day machining calculations. With the Machinist Calc Pro

you will spend less time looking up your most-needed calculations

on charts, in books or on the Internet and more time machining.

The Machinist Calc Pro gives you hundreds of machining-specific

calculations, including:

• Cutting Speed, Spindle Speed (RPM)

• Feed Rate, Cutting Feed, Feed per Tooth (Chip Load)

• Built-in Drill and Thread Size reference tables

• Drill Point Cut Depth solutions

• Wire Sizes and 3-Wire Measurements

• Bolt Pattern hole layouts with center x, y coordinate

• Right triangle math

• Trigonometric solutions

• Work in and convert between U.S. and Metric units, including:

• m, mm, cm

• Decimal Inches/Mils

• Feet-Inch-Fractions

• Area, Volume and Weight

Note: The Machinist Calc Pro calculator Model 4089 and User’s Guide are

designed for machinists who work with metric drill, screw and thread sizes

and metric thread tolerance classes. The calculator can be used for non-metric

applications, so some examples for working in U.S. units – numeric, letter,

and inch drill sizes and numeric and fractional thread sizes and classes –

are included in the Appendix of this User’s Guide.

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Us e r 'sGU i d e — 1

TABLE OF CONTENTS

GETTING STARTED ............................................................................................. 4

KEY DEFINITIONS ............................................................................................ 4

Basic Function Keys........................................................................................ 4

Dimensional Function Keys............................................................................. 5

Weight and Volume Function Keys ................................................................. 6

Trigonometric Function Keys .......................................................................... 6

Miscellaneous Functions ................................................................................. 7

Machinist Function Keys ................................................................................. 8

PREFERENCE SETTINGS ............................................................................. 12

ENTERING DIMENSIONS .............................................................................. 13

Linear Dimensions......................................................................................... 13

Square and Cubic Dimensions...................................................................... 13

CONVERSIONS............................................................................................... 14

Linear Conversions........................................................................................ 14

Square and Cubic Conversions.................................................................... 14

Weight Conversions ...................................................................................... 14

Weight per Volume and Volume Conversions .............................................. 15

BASIC MATH OPERATIONS........................................................................... 15

Adding and Subtracting Dimensions............................................................. 15

Multiplying Dimensions.................................................................................. 16

Dividing Dimensions...................................................................................... 16

Calculating Percentages ............................................................................... 16

MEMORY OPERATION................................................................................... 17

Using M+ ....................................................................................................... 17

Using Memory Storage Keys (M1 – M9)....................................................... 18

PAPERLESS TAPE OPERATION.................................................................... 18

USING THE MACHINIST CALC PRO................................................................ 20

(cont’d)

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RPM (SPINDLE SPEED)................................................................................. 20

RPM – Milling ................................................................................................ 21

RPM – Turning............................................................................................... 22

RPM – Drilling................................................................................................ 22

FEED RATE ..................................................................................................... 23

Feed Rate – Based on Cutting Feed and RPM (for Turning)........................ 23

Feed Rate – Based on Cutting Feed and RPM (for Drilling)......................... 23

Feed Rate – Based on Feed per Tooth, RPM and # of Teeth....................... 24

CUTTING SPEED............................................................................................ 25

Cutting Speed – Milling ................................................................................. 25

Cutting Speed – Turning................................................................................ 26

Cutting Speed – Drilling................................................................................. 26

FEED PER TOOTH (CHIP LOAD) .................................................................. 27

Feed per Tooth – Based on Cutting Feed and # of Teeth ............................ 27

Feed per Tooth – Based on Feed Rate, RPM and # of Teeth ...................... 27

RADIAL CHIP THINNING ................................................................................ 28

Radial Chip Thinning –

Based on Feed per Tooth, Tool Diameter and Cut Depth ............................ 28

CUTTING FEED............................................................................................... 29

Cutting Feed – Based on Feed per Tooth and # of Teeth............................. 29

Cutting Feed – Based on Feed Rate and RPM ........................................... 30

DRILL SIZES .................................................................................................... 30

DRILL POINT ................................................................................................... 31

THREAD SIZING ............................................................................................. 32

Internal Thread .............................................................................................. 32

External Thread ............................................................................................. 33

Thread Classification..................................................................................... 33

Changing a Thread Classification ................................................................. 33

Thread Size ................................................................................................... 34

(cont’d)

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Custom Thread Percentage .......................................................................... 35

WIRE SIZES AND 3-WIRE MEASUREMENTS .............................................. 36

Wire Size ....................................................................................................... 36

3-Wire Measurement – Known Thread Size and Wire Size ......................... 37

Pitch Diameter – Known 3-Wire Measurement and Wire Size..................... 38

BOLT PATTERN ............................................................................................... 39

Bolt Pattern.................................................................................................... 40

RIGHT TRIANGLE FUNCTIONS..................................................................... 41

Right Triangle – Based on Adjacent and Opposite Legs .............................. 41

Right Triangle – Based on Hypotenuse and Angle ....................................... 42

CIRCLE CALCULATIONS ............................................................................... 42

Circumference and Area – Based on Diameter ............................................ 42

Circumference and Area – Based on Radius................................................ 43

BASIC D:M:S AND TRIGONOMETRY EXAMPLES ....................................... 43

Converting Degrees:Minutes:Seconds ......................................................... 43

Time Calculations Using D:M:S..................................................................... 44

Trigonometric Functions ................................................................................ 44

APPENDIX A – U.S. MODE EXAMPLES.......................................................... 45

APPENDIX B – DEFAULT SETTINGS............................................................... 52

APPENDIX C – PREFERENCE SETTINGS................................................... 53

APPENDIX D – CARE INSTRUCTIONS ........................................................ 56

APPENDIX E – ACCURACY/ERRORS, AUTO SHUT-OFF,

BATTERIES, RESET ...................................................................................... 56

ACCURACY/ERRORS ................................................................................ 56

AUTO SHUT-OFF ........................................................................................ 57

BATTERIES ................................................................................................. 57

Battery Replacement Instructions ............................................................. 57

RESET ......................................................................................................... 57

REPAIR AND RETURN................................................................................... 58

WARRANTY.................................................................................................... 59

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4 — Ma c h i n i s t ca l c ™Pr o

GETTING STARTED

KEY DEFINITIONS

Basic Function Keys

On/Clear Key — Turns on power. Pressing once clears

the last entry and the display. Pressing twice clears all

non-permanent values.

Off — Turns all power off. Clears all

non-permanent values.

+-*

Arithmetic operation keys.

0-9

and.

Keys used for entering numbers.

Convert — Used with the dimensional keys to convert

between units or with other keys to access special functions.

Store — Used for storing values.

1-9

Storage Registers M1 through M9 — Used to store

values in Memory registers 1 through 9.

Recall — Used with other keys to recall stored values

and settings.

Memory Clear (M-R/C) — Clears Accumulative Memory

without changing current display.

Memory Clear — Clears Accumulative Memory and

displays total.

Accumulative Memory — Adds displayed value to

Accumulative Memory.

M- — Subtracts displayed value from

Accumulative Memory.

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Us e r 'sGU i d e — 5

Dimensional Function Keys

mMillimeters — Identies entry as millimeters, with

repeated presses toggling between linear, area and

volume units. Converts dimensional value to units of

millimeters, with repeated presses toggling between

millimeters and meters.

g5 Centimeters (cm) — Identies entry as centimeters,

with repeated presses toggling between linear, area

and volume units.

g9 Meters (m) — Identies entry as meters, with

repeated presses toggling between linear, area and

volume units.

g7 Feet — Identies entry as Feet, with repeated

presses of

g 7 toggling between linear, area and

volume units. Also used with iand /for entering

Feet-Inch values. Repeated presses of g 7 during

conversions toggle between fractional Feet-Inch and

decimal Feet.

iInch — Identies entry as Inches, with repeated

presses toggling between linear, area and volume

units. Entry can be whole or decimal numbers. Also

used with

/ for entering fractional Inch values (e.g.,

9i1/2). Repeated presses during conversions

toggle between fractional and decimal Inches.

/Fraction Bar — Used to enter fractions. Fractions

can be entered as proper (1/2, 1/8, 1/16) or improper

(3/2, 9/8). If the denominator (bottom) is not

entered, the calculator’s fractional accuracy setting

is automatically used. Results are always shown in

typical dimensional fractional format.

(cont’d)

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(cont’d)

B1/1000" (mils) — Multiplies a dimensionless entry

by 0.001 Inch and displays the result as Inches.

Converts a linear entry to decimal Inches. For both

methods, the result is rounded and displayed to three

decimal places

Weight and Volume Function Keys

g6 Tons — Enters or converts a weight or volume value

to tons.

g4 Pounds (lbs) — Enters or converts a weight or

volume value to pounds.

g3 Tonnes (tonne) — Enters or converts a weight or

volume value to tonnes.

g2 Grams — Enters or converts a weight or volume

value to grams.

g1 Kilograms (kg) — Enters or converts a weight or

volume value to kilograms.

g0 Weight per Volume (wt/vol) — Stores a new weight

per volume as pounds per cubic foot or other format

as shown below. Default value is 490 pounds per

cubic foot of steel.

● Pounds per cubic foot

● Pounds per cubic inch

● Tonnes per cubic meter

● Kilograms per cubic meter

Trigonometric Function Keys

g# Sine (Sin) — Calculates the Sine of an entered

degree or unitless value.

ga Arcsine (Sin-1)—Calculates the angle for the

entered or calculated Sine value.

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gF Cosine (Cos) — Calculates the Cosine of an

entered degree or unitless value.

gp Arccosine (Cos-1)—Calculates the angle for the

entered or calculated Cosine value.

gc Tangent (Tan) — Calculates the Tangent of an

entered degree or unitless value.

gh Arctangent (Tan-1)—Calculates the angle for the

entered or calculated Tangent value.

Miscellaneous Functions

Degrees:Minutes:Seconds (dms◄►deg)

—

Converts between D:M:S and decimal degree

formats; repeated presses will toggle between the

two formats.

%Percentage — Used to nd a given percent

of a number.

g% x2— Squares the value on the display.

ABackspace Function — Used to delete entries one

keystroke at a time (unlike the O

function, which

deletes the entire entry).

gA Square Root (!)—Calculates the Square Root of

the number on the display.

g, Reciprocal (1/x)—Finds the Reciprocal of a

number (e.g., 8g,=

0.125).

g* Clear All —Returns all stored values to the default

settings. Does not affect Preference Settings.

g- Change Sign (+/–) — Toggle displayed value

between negative and positive value.

g+ Pi — Displays value of π(3.1415927).

(cont’d)

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(cont’d)

g= Paperless Tape (Tape) — Accesses the Paperless

Tape mode (see Paperless Tape section), which

keeps track of your past 30 entries. Useful for

checking strings of numbers.

gS Preference Settings (Prefs) —Accesses various

customizable settings, such as dimensional answer

formats (see Preference Settings section).

Machinist Function Keys

CCutting Speed — Enters or calculates Cutting

Speed. Unitless entries assumed meters per minute

in Metric mode; feet per minute in U.S. mode.

Calculates Cutting Speed given entered Diameter

and RPM (Spindle Speed). Result is displayed as a

whole number.

gC Radial Chip Thinning (RCT) — Enters a Cut Depth

and calculates a Radial Chip Thinning factor to

increase the Feed Rate given Feed Per Tooth, Tool

Diameter and a Cut Depth that is less than one-

half the Tool Diameter. Unitless entries assumed

millimeters in Metric mode; Inches in U.S. mode.

RRevolutions per Minute — Enters or calculates

RPM (Spindle Speed). Calculates RPM given entered

Diameter and Cutting Speed. Result is displayed as a

whole number.

gR 3-Wire Measurement (3-W Measure) — Enters

or calculates a Three-Wire Measurement. Unitless

entries assumed millimeters in Metric mode;

Inches in U.S. mode. Calculates the minimum and

maximum Three-Wire Measurements and Pitch

Diameters given entered Thread Size and Wire Size,

assuming an External thread type. If a Three-Wire

Measurement value is entered, the Pitch Diameter

calculation is based on this entered measurement.

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