MACHINIST CALC™ AND MACHINIST CALC™ PRO The Machinist Calc™ Machining Math and Reference Tool (Model 4086) and the Machinist Calc™ Pro Advanced Machining Math and Reference Tool (Model 4087) both provide fast, precise solutions for your every day machining calculations. With the Machinist Calc/ Machinist Calc Pro you will spend less time looking up your mostneeded calculations on charts, in books or on the Internet and more time machining.
Table of Contents GETTING STARTED......................................................................................... 5 KEY DEFINITIONS......................................................................................... 5 Basic Function Keys..................................................................................... 5 Dimensional Function Keys......................................................................... 6 Weight and Volume Function Keys................................
CUTTING SPEED........................................................................................ 25 Cutting Speed – Milling.............................................................................. 26 Cutting Speed – Turning............................................................................ 26 Cutting Speed – Drilling............................................................................. 27 Cutting Speed – Using Metric Mode.................................................
Changing a U.S. Thread Classification...................................................... 46 Changing a Metric Thread Classification................................................... 46 Numeric Thread Size – Model 4087.......................................................... 47 Fractional Thread Size – Model 4087........................................................ 48 Metric Thread Size – Model 4087..............................................................
Getting Started You may want to practice getting a feel for your calculator keys by reading through the key definitions and learning how to enter data, how to store values, etc., before proceeding to the examples. KEY DEFINITIONS Basic Function Keys O On/Clear Key — Turns on power. Pressing once clears the last entry and the display. Pressing twice clears all non-permanent values. o Off — Turns all power off. Clears all non-permanent values. +-* ,= 0-9 and . g Arithmetic operation keys.
Dimensional Function Keys m Millimeters — Identifies 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) — Identifies entry as centimeters, with repeated presses toggling between linear, area and volume units. g9 Meters (m) — Identifies entry as meters, with repeated presses toggling between linear, area and volume units.
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 Metric Tons (met tons) — Enters or converts a weight or volume value to metric tons. 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.
(cont'd) gh Arctangent (ArcTan) — Calculates the angle for the entered or calculated Tangent value. Miscellaneous Functions g. 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 find a given percent of a number. gD Model 4086 g% x2 — Squares the value on the display.
gS Preference Settings (Prefs) — Accesses various customizable settings, such as dimensional answer formats (see Preference Settings section). Machinist Function Keys C Cutting Speed — Enters or calculates Cutting Speed. Unitless entries assumed feet per minute in U.S. mode; meters per minute in Metric mode. Calculates Cutting Speed given entered Diameter and RPM (Spindle Speed). Result is displayed as a whole number. R Revolutions per Minute — Enters or calculates RPM (Spindle Speed).
(cont'd) gf Model 4087 only Wire Size — Enters or calculates Wire Size for 3-Wire Measurements. Unitless entries assumed Inches in U.S. mode; millimeters in Metric mode. Calculates the recommended Best (Ideal), Maximum and Minimum Wire Sizes given an entered Thread Size. b Bolt Pattern — Enters the number of holes in a Bolt Pattern.
D Drill Size — Enters a numeric, letter, fractional or metric Drill Size, displaying the decimal Inch equivalent of the Drill Size. The next smaller Drill Size is displayed if the entered value doesn’t match a Drill Size. Repeated presses of D or + toggle through Drill Sizes in increasing order. Presses of - toggle through Drill Sizes in decreasing order. Selected Drill Size is stored upon exiting function. gD Drill Point — Enters the Cutting Angle of a Drill Point.
(cont'd) gd Model 4087 only Radius — Enters or calculates a Radius. Calculates Radius given entered Diameter. g8 Alpha — Enters alphabet character selection mode. While in this mode, a letter can be selected and used with D to enter a letter Drill Size. Entering this mode with a unitless entry between 1 and 26 will display the corresponding letter of the alphabet (i.e. 5 g 8 displays the letter E).
setting fractional resolutions The Machinist Calc and Machinist Calc Pro are set to display fractional answers in 64ths of an Inch. All examples in this User’s Guide are based on 1/64”. However, you may select Fractional Resolution to be displayed in other formats (e.g., 1/16”, 1/32”, etc.). The methods for permanently and temporarily changing Fractional Resolution are shown in the following sections.
Temporarily Set Fractional Resolution You can also convert a fractional value to a different resolution temporarily while solving a problem. In the example below, add 1/64th to 44/64th of an Inch and then convert the answer to other Fractional Resolutions: KEYSTROKE OO 44/64 +1/64= g1 (1/16) g2 (1/2) g3 (1/32) g4 (1/4) g6 (1/64) g8 (1/8) OO * DISPLAY 0. 0-44/64 INCH 0-45/64 INCH 0-11/16 INCH 0-1/2 INCH 0-23/32 INCH 0-3/4 INCH 0-45/64 INCH 0-3/4 INCH 0.
KEYSTROKE gS S (Prefs) (Functional Result Rounding) + + + (repeats options) Third press of S : (Default Unit Format) + + (repeats options) Fourth press of S : (Area Answer Format) + + + + (repeats options) Fifth press of S : (Volume Answer Format) + + + + (repeats options) Sixth press of S : (Fractional Mode) + + (repeats options) Seventh press of S : (Mathematical Operation) + + (repeats options) DISPLAY F-RND 0.0000 F-RND 0.000 F-RND FLOAT F-RND 0.0000 US UnITS METRC UnITS US UnITS AREA Std.
Entering dimensions Note: Unlike other Calculated Industries/Construction Master calculators, the Machinist Calc and Machinist Calc Pro do not have a dedicated Feet key. Feet is a secondary function located above the 7 key, so you have to use the g key, then 7 to enter or calculate dimensions using Feet. Below are some examples.
Square and Cubic Dimensions Examples of how square and cubic dimensions are entered (press O after each entry): DIMENSIONS 14 square Inches 11 square millimeters 1.5 cubic meters 3 cubic Feet KEYSTROKE 14ii 11m m 1 . 5g 9 9 9 3g7g7g7 conversions Linear Conversions Convert 10 Feet 6 Inches to other dimensions, including metric: KEYSTROKE OO 10g76i gB * g7 (Feet) gi gm g 5 (cm) g 9 (m) DISPLAY 0. 10 FEET 6 INCH 126.000 INCH 10.5 FEET 126. INCH 3200.4 MM 320.04 CM 3.
(cont'd) Convert 15 Feet 9-1/2 Inches to decimal Feet. Then convert back to Feet-Inch-Fractions. KEYSTROKE DISPLAY 0. OO 1 5 g 7 9 i 1/ 2 g 7 (Feet) g7 15 FEET 9-1/2 INCH 15.791667 FEET 15 FEET 9-1/2 INCH Convert 17.32 Feet to Feet-Inch-Fractions: KEYSTROKE OO 1 7 . 3 2 g 7 (Feet) =g 7 g7 gi g7g7 DISPLAY 0. 17.32 FEET 17 FEET 3-27/32 INCH 17.32 FEET 207.84 INCH 17 FEET 3-27/32 INCH Convert 8-1/8 Inches to decimal Inches. Then convert to decimal Feet. KEYSTROKE OO 8i1/8 gi g 7 (Feet) DISPLAY 0.
Square and Cubic Conversions Convert 6 square Feet to other square dimensions: KEYSTROKE DISPLAY 0. OO 6 g 7 g 7 (Feet) gm g 9 (m) g 5 (cm) 6 SQ FEET 557418.24 SQ MM 0.5574182 SQ M 5574.1824 SQ CM Convert 0.05 cubic meters to other dimensions: KEYSTROKE OO .0 5g 9 9 9 (m) gm g 5 (cm) gi g 7 (Feet) DISPLAY 0. 0.05 CU M 50000000. CU MM 50000. CU CM 3051.1872 CU INCH 1.7657333 CU FEET Weight Conversions Convert 1.5 tons to pounds and kilograms: KEYSTROKE DISPLAY 0. OO 1 .
(cont'd) KEYSTROKE DISPLAY 0. OO 1. Store the weight per volume: 7480. KG/ CU M 7 4 80S 0000 * (wt/vol) 2. Enter steel volume: 2 CU FEET 2g7g7g7 3. Convert to pounds, tons, kilograms and metric tons: 933.92229 LBS g 4 (lbs) g 6 (tons) g 1 (kg) g 3 (met tons) 0.4669611 TON 423.62003 KG 0.42362 MTON 4. Change the weight per volume back to the default value: 4 9 0S 00 (wt/vol) 490.
Multiplying Dimensions Multiply 5 Feet 3 Inches by 11 Feet 6-1/2 Inches: KEYSTROKE 5g 7 3i* 11g 76 i 1/ 2 = DISPLAY 5 FEET 3 INCH 60.59375 SQ FEET Multiply 2 Feet 7 Inches by 10: KEYSTROKE 2 g 7 7 i * 10 = DISPLAY 25 FEET 10 INCH Dividing Dimensions Divide 30 Feet 4 Inches by 7 Inches: KEYSTROKE 30g 7 4 i, 7 i = DISPLAY 52.
(cont'd) KEYSTROKE 1 7 g 76 i- 2 0 % DISPLAY 14 FEET 0 INCH MEMORY OPERATION Whenever the M key is pressed, the displayed value will be added to the Memory. Other Memory functions: FUNCTION Add to Memory Subtract from Memory Recall total in Memory Display/Clear Memory Clear Memory KEYSTROKE M gM rM rr gr Memory is semi-permanent, clearing only when you do one of the following: – turn off the calculator – press rr – press gr – press g*(Clear All).
Using Memory Storage Keys (M1- M9) In addition to the standard cumulative Memory (as previously described), your calculator has nine independent Storage Registers – M1 through M9 – that can be used to permanently store single, noncumulative values. The following example shows the use of M1 (S 1). To use M2 - M9, replace the presses of the 1 key with presses of the corresponding number key (2 - 9). You can replace a value in one of these Memory registers by storing a new value in place of the stored value.
(cont'd) While in the Paperless Tape mode, the display will show the previously entered or calculated value, along with the sequential number of the entry (e.g., 01, 02, 03, etc.) and the math operator (+, –, x, ÷, %) in the upper left corner of the display. Note: If = has been used in the middle of a sequence, SUB (for Subtotal) will display in the upper left. If = was the last operation performed, the display will show TTL (Total) as the last entry.
KEYSTROKE DISPLAY 3. Scroll from first value to total: + + + + + 01 4 INCH 02+ 7-1/2 INCH 03+ 6 INCH 04+ 3-3/4 INCH TTL = 21-1/4 INCH 4. Scroll last two values: - 04+ 3-3/4 INCH 03+ 6 INCH 5. Exit Tape function and add another value to your total: = + 3i 1/ 2 = TTL = 21-1/4 INCH 21-1/4 INCH 24-3/4 INCH USING THE MACHINIST CALC/ MACHINIST CALC PRO IMPORTANT: All examples are based on the default U.S. units mode, displaying entries and calculations in U.S. units.
(cont'd) Cutting Speed – Milling Calculate the Cutting Speed for a mill using a 1/2” tool running at 1,250 RPM (Spindle Speed): KEYSTROKE DISPLAY 0. OO 1. Enter the Diameter of the tool: DIA 1/ 2d 2. Enter the RPM: RPM 1250R 3. Calculate the Cutting Speed: C* C C rC* 0-1/2 INCH 1250. CUT 164. FEET/MIN DIA 0-1/2 INCH RPM CUT 1250. 163.62462 FEET/MIN * The calculated Cutting Speed is displayed as a rounded, whole number value.
* Repeated presses of C will toggle through the inputs and outputs, starting with the entered Diameter. Cutting Speed - Drilling Calculate the Cutting Speed using a 10.5 mm drill bit with the Spindle Speed set to 750 RPM: KEYSTROKE DISPLAY OO 0. 1. Enter the Diameter of the hole to be drilled: DIA 10 . 5m d 10.5 MM 2. Enter the RPM: 750R RPM 750. 3. Calculate the Cutting Speed: CUT 81.
(cont'd) KEYSTROKE DISPLAY 3. Store as the Diameter: DIA =d 0.228 INCH 4. Enter the RPM: RPM 750R 750. 5. Calculate the Cutting Speed: CUT 14. M/MIN C* 6. Return calculator to U.S. Mode: US UnITS gS S S + * Repeated presses of C will toggle through the inputs and outputs, starting with the entered Diameter. RPM (SPINDLE SPEED) RPM is the rotational speed of the spindle in revolutions per minute. In a milling machine or drill, the Spindle Speed is the rotation of the attached cutting tool.
KEYSTROKE DISPLAY 0. OO 1. Enter the bit Diameter: 3/8d DIA 0-3/8 INCH 2. Enter the Cutting Speed: 300C CUT 300. FEET/MIN CUT 300. FEET/MIN 3. Calculate the Spindle Speed (RPM): R R R rR* RPM 3056. DIA 0-3/8 INCH RPM 3055.7749 * The calculated RPM is displayed as a rounded, whole number value. r R displays the stored RPM value in decimal floating point format.
RPM - Drilling Calculate what the RPM (Spindle Speed) should be set to when drilling into material with a recommended Cutting Speed of 90 sfm using a 5/8” bit: KEYSTROKE DISPLAY 0. OO 1. Enter the Diameter: DIA 5/ 8d 0-5/8 INCH 2. Enter the Cutting Speed: 9 0C CUT 90. FEET/MIN 3. Calculate the RPM: RPM 550. R* * Repeated presses of R will toggle through the inputs and outputs, starting with the entered Cutting Speed.
KEYSTROKE DISPLAY 2. Enter the Number of Teeth: 4# TEETH 4. 3. Calculate the Feed per Tooth: F F F FPT 0.0060 INCH TEETH CUT 4. 0.024 INCH/REV Feed per Tooth – Based on Feed Rate, RPM and # of Teeth Calculate Feed per Tooth (Chip Load) with a 12.8 Inch per minute Feed Rate, 4 Teeth and a Spindle Speed of 800 RPM: KEYSTROKE DISPLAY 0. OO 1. Enter the Feed Rate: 1 2 .8f FEED 12.8 INCH/MIN 2. Enter the Number of Teeth: 4# TEETH 4. 3. Enter the Spindle Speed (RPM): 800 R RPM 800. 4.
(cont'd) Cutting Feed – Based on Feed per Tooth and # of Teeth Calculate Cutting Feed with a Feed per Tooth (Chip Load) of 0.005 Inch and 4 Teeth: KEYSTROKE DISPLAY 0. OO 1. Enter the Feed per Tooth: FPT .00 5F 0.005 INCH 2. Enter the Number of Teeth: TEETH 4# 4. 3. Calculate the Cutting Feed: c c c CUT 0.0200 INCH/REV FPT 0.005 INCH TEETH 4. Cutting Feed – Based on Feed Rate and RPM Calculate a Cutting Feed using a 15-Inch Feed Rate and a Spindle Speed of 800 RPM: KEYSTROKE DISPLAY 0.
FEED RATE Feed Rate is the speed of the cutting tool’s movement relative to the workpiece as the tool makes a cut. You can calculate Feed Rate given values for Cutting Feed and RPM (Spindle Speed). If you don’t know the Cutting Feed, you can calculate Feed Rate with Feed per Tooth (Chip Load), Number of Teeth and RPM. Feed Rate – Based on Cutting Feed and RPM (for Turning) Calculate the Feed Rate if you are turning a 1” steel round stock down with a Cutting Feed of 0.
(cont'd) KEYSTROKE DISPLAY 0. OO 1. Enter the Cutting Feed: .00 4c CUT 0.004 INCH/REV 2. Enter the RPM: 800 R RPM 800. 3. Calculate the Feed Rate: FEED 3.2000 INCH/MIN f* * Repeated presses of f will toggle through the inputs and outputs, starting with the entered RPM (Spindle Speed). Feed Rate – Based on Feed per Tooth, RPM and # of Teeth Calculate the Feed Rate for a four-fluted end mill using a Feed per Tooth (Chip Load) of 0.
KEYSTROKE DISPLAY RPM 1000 R 1000. 4. Calculate the Feed Rate: FEED 20.0000 INCH/MIN f* * Repeated presses of f will toggle through the inputs and outputs, starting with the entered RPM (Spindle Speed). Drill Sizes The D key allows the selection of a desired Drill Size, which can be entered as a: Numeric value (whole digits 1 through 97) Letter between A and Z Fractional or decimal Inch value (max. of 3-1/2”) Millimeter value (max. of 78 mm).
(cont'd) * Repeated presses of D display the next larger Drill Sizes. The + and - keys will toggle forward and backward, respectively, through all available Drill Sizes. Letter Drill Size Entry You can enter letter Drill Sizes by selecting an alphabet character via Alpha Mode (g8) and then storing it using the D key.
* Repeated presses of D display the next larger Drill Sizes. The + and - keys will toggle forward and backward, respectively, through all available Drill Sizes. Inch Drill Size Entry Enter hole sizes of 0.3”, 1” and 1-19/64”. After entering each size, toggle through the available sizes to view the next larger and next smaller sizes. KEYSTROKE DISPLAY 0. OO 1. Enter the 0.3” hole size and view next larger and next smaller sizes: .3iD D -- 7_60 MM DRILL SIZE 0.2992 INCH N DRILL SIZE 0.
Millimeter Drill Size Entry Enter a 5.7 mm hole size and toggle through the available sizes to view the next larger and next smaller sizes: KEYSTROKE DISPLAY 0. OO 1. Enter the hole size as millimeters: 5.7mD 5_70 MM DRILL SIZE 0.2244 INCH 2. View next larger and next smaller sizes: D -- 5_75 MM DRILL SIZE 2 DRILL SIZE 0.2264 INCH 0.2210 INCH Drill Point (NOT AVAILABLE ON MODEL 4086) The Drill Point function calculates the Drill Point Cut Depth (length) of the stored Drill Size.
THREAD SIZING Basic Thread Sizing On both Machinist Calc and Machinist Calc Pro, the t key allows you to enter a numeric, fractional or metric Thread Size and then toggle through the various available Thread characteristics, as shown in the tables provided later in this section. When using the t key, the first entry is considered the Thread Size. Upon entering the Thread Size, the Threads per Inch (TPI) or Pitch is required.
(cont'd) The following tables list the available Thread characteristics provided by the Thread Size function on each model. Note that Model 4087 has two separate listings, one for Internal Threads and one for External Threads. The listing shown within the Thread Size function is determined by the set Thread Classification (see Thread Classification section).
KEYSTROKE DISPLAY 0. OO 1. Enter the Thread Size: 8t SIZE 8– 2. Toggle through the common TPI values: t t t THRED SIZE 8 – 32 THRED SIZE 8 – 36 THRED SIZE 8 – 32 3. Clear the display and then recall the stored Thread Size: O* t 0. THRED SIZE 8 – 32 4. Find the recommended Cutting Tap Hole Size (Cut Tap Drill Size) and the Thread Outside Diameter (Minimum Major Diameter): t (Cut Tap Drill Size) t (Outside Diameter) TAP DRILL SIZE 29 OD SIZE 0.
(cont'd) KEYSTROKE DISPLAY 3. Find the recommended Cutting Tap Hole Size (Cut Tap Drill Size) and the Thread Outside Diameter (Minimum Major Diameter): TAP DRILL SIZE 36 t (Cut Tap Drill Size) t (Outside Diameter) OD SIZE 0.1380 INCH * After entering the TPI value, the press of t is required in order to store the entered Thread Size.
KEYSTROKE DISPLAY 3. Store selected Thread Size and find the recommended Cutting Tap Hole Size (Cut Tap Drill Size) and the Thread Outside Diameter (Minimum Major Diameter): O* t t (Cut Tap Drill Size) t (Outside Diameter) 0. THRED SIZE 1/2 – 28 INCH TAP DRILL SIZE 0-15/32 INCH OD SIZE 0.5000 INCH * In addition to clearing the display, pressing O upon reaching the desired TPI stores the displayed Thread Size.
(cont'd) KEYSTROKE DISPLAY 0. OO 1. Enter the Thread Size: 2mt SIZE 2. – MM 2. Toggle through the available common Thread Pitches: t t THRED SIZE THRED SIZE 2. – 0.25 MM 2. – 0.4 MM 3. Clear the display and then recall the stored Thread Size: O* t 0. THRED SIZE 2. – 0.4 MM 4. Find the recommended Cutting Tap Hole Size (Cut Tap Drill Size) and the Thread Outside Diameter (Minimum Major Diameter): t (Cut Tap Drill Size) t (Outside Diameter) TAP DRILL SIZE 1.6 MM OD SIZE 2.
KEYSTROKE DISPLAY 3. Find the recommended Cutting Tap Hole Size (Cut Tap Drill Size) and the Thread Outside Diameter (Minimum Major Diameter). TAP DRILL SIZE 7.25 MM t Cut Tap Drill Size) t (Outside Diameter) OD SIZE 8.0000 MM * After entering the Pitch value, the press of t is required in order to store the entered Thread Size. Thread Classification (NOT AVAILABLE ON MODEL 4086) The Machinist Calc Pro provides additional outputs and gives you the choice between Internal and External Threads.
Changing a U.S. Thread Classification KEYSTROKE g* DISPLAY ALL CLEArEd 1. Recall the current Thread Classification: gb (Thread Class) INT 2B 2. Change to U.S. External Thread Class 2: b EXT 2A 3. Change to U.S. External Thread Class 1: 1gb (Thread Class) EXT 1A 4. Change to U.S. Internal Thread Class 1: b INT 1B Changing a Metric Thread Classification Changing a Metric Thread Tolerance Class is done in the same manner, with several selections available for Internal and External Threads.
KEYSTROKE DISPLAY 3. Enter a Tolerance Grade of 6 and toggle through the available Tolerance Positions for the entered Grade: 6gb (Thread Class) b b b* INT MM 6H EXT MM 6G EXT MM 6H EXT MM 6E * Repeated presses of b will continue to toggle through the available Tolerance Positions of the specified Grade. Note: The number 3 can be entered to select both U.S. and Metric classes. If no Thread Size is stored when accessing the Thread Classification function, the U.S. Class will always be displayed.
KEYSTROKE DISPLAY 3. Enter the TPI and store the final Thread Size: 32t THRED SIZE 8 – 32 4. Find the available Internal Thread characteristics: t (Cut Tap Drill Size) t (Roll Tap Drill Size) t (Close Fit Drill Size) t (Free Fit Drill Size) t (Min. Internal Pitch Diameter) t (Max. Internal Pitch Diameter) t (Min. Internal Minor Diameter) t (Max. Internal Minor Diameter) t (Min. Internal Major Diameter) TAP DRILL SIZE 29 R-TAP DRILL SIZE 3.75 MM CLOSE DRILL SIZE 18 FREE DRILL SIZE 16 PTCH- SIZE 0.
KEYSTROKE DISPLAY ALL CLEArEd g* 1. Verify Thread Class is set to 2B: INT 2B gb (Thread Class) 2. Enter the Thread Size: 1/4t SIZE 1/4 – INCH 3. Enter the TPI and store the final Thread Size: 28t THRED SIZE 1/4 – 28 INCH 4. Find the available Internal Thread characteristics: t (Cut Tap Drill Size) t (Roll Tap Drill Size) t (Close Fit Drill Size) t (Free Fit Drill Size) t (Min. Internal Pitch Diameter) t (Max. Internal Pitch Diameter) t (Min. Internal Minor Diameter) t (Max.
Metric Thread Size – Model 4087 Find the available Internal and External Thread characteristics for a 5 mm, 0.75 mm Pitch screw with a Tolerance Class of 4H. Note: The default Metric Tolerance Class is 6H (Internal). To view the current Tolerance Class, press g b after entering the desired Metric Thread Size. To change the class, press b again. KEYSTROKE DISPLAY ALL CLEArEd g* 1. Set Tolerance Class to Internal 4H: INT MM 4H 4gb (Thread Class) 2. Enter the Thread Size: 5m t SIZE 5. – MM 3.
KEYSTROKE t (Rod Size for Cold Forming) t (Max. External Pitch Diameter) t (Min. External Pitch Diameter) t (Max. External Major Diameter) t (Min. External Major Diameter) t (Max. External Minor Diameter) DISPLAY CFORM SIZE 4.5433 MM PTCH+ SIZE 4.4910 MM PTCH- SIZE 4.4350 MM MAJR+ SIZE 4.9780 MM MAJR- SIZE 4.8880 MM MINR+ SIZE 4.
(cont'd) * Repeated presses of t will toggle through the inputs and outputs, starting with the Close Fit Drill Size. Wire Sizes and 3-Wire Measurements (NOT AVAILABLE ON MODEL 4086) Wire Size If you know your Thread Size, you can find the Best (Ideal), Maximum and Minimum Wire Sizes you can use for that size Screw Thread. Find the Ideal (Best), Maximum and Minimum Wire Sizes for measuring a 3/8 Inch Thread with 16 Threads per Inch: KEYSTROKE DISPLAY 0. OO 1.
Find the maximum allowable 3-Wire Measurement and Pitch Diameter for a 3/8 – 16, Class 2A (External) screw using 0.040 Inch wire: KEYSTROKE DISPLAY 0. OO 1. Enter the Thread Size: 3/8t SIZE 3/8 – INCH 2. Enter the Threads per Inch and store the final Thread Size: 16t THRED SIZE 3/8 – 16 INCH 3. Set the Thread Class to 2A: EXT 2A 2 g b * (Thread Class) * If necessary, continue pressing b until the desired External Thread Class is displayed. 4. Enter the Wire Size**: .
(cont'd) Find the Pitch Diameter of a 3/8-16, Class 2A (External) screw with a 3-Wire Measurement of 0.3975 Inches obtained using a 0.040 Inch wire: KEYSTROKE DISPLAY 0. OO 1. Enter the Thread Size: 3/8t SIZE 3/8 – INCH 2. Enter the Threads per Inch and store the final Thread Size: 16t THRED SIZE 3/8 – 16 INCH 3. Enter the Wire Size*: .0 4gf (Wire Size) WIRE SIZE 0.04 INCH 4. Enter the 3-Wire Measurement: . 3 9 7 5g R (3-W Measure) 3WIRE SIZE 0.3975 INCH 5.
X2,Y2 X1,Y1 Start Angle XC,YC X3,Y3 Bolt Pattern – Model 4086 Calculate the Bolt Pattern for a layout with a 4.5 Inch Diameter, a 30° Start Angle and 6 Bolts. Note: When determining angles, 0° is at the 3 o’clock position and the rotation goes counterclockwise. KEYSTROKE DISPLAY 0. OO 1. Enter the Angle of the first bolt hole: 30g b (Start Angle) ANGLE 30.° 2. Enter the Bolt Circle Diameter: 4 . 5 id DIA 4.5 INCH 3. Enter the Number of Bolts: 6b BOLTS 6. 4.
(cont'd) KEYSTROKE b b b b b b b b b b DISPLAY X-03 - 1.9486 INCH Y-03 1.1250 INCH X-04 - 1.9486 INCH Y-04 - 1.1250 INCH X-05 0.0000 INCH Y-05 - 2.2500 INCH X-06 1.9486 INCH Y-06 - 1.1250 INCH DIA 4.5 INCH ANGLE 30° Bolt Pattern – Model 4087 Calculate the Bolt Pattern for a layout with a 3.5 Inch Diameter, a 20° Start Angle and 3 Bolts. The Center x-coordinate is 10 inches and the center y-coordinate is 15 inches.
KEYSTROKE DISPLAY 6. Calculate Center-to-Center Spacing and the x and y coordinates: OC-OC 3.0311 INCH b (Center-to-Center Spacing) b b b b b b b b b b X-01 11.6445 INCH Y-01 15.5985 INCH X-02 8.6594 INCH Y-02 16.1249 INCH X-03 9.6961 INCH Y-03 13.2766 INCH DIA 3.
(cont'd) KEYSTROKE DISPLAY 0. OO 1. Enter the Adjacent Leg length: 3ia ADJ 3. INCH OPP 4. INCH 2. Enter the Opposite Leg length: 4ip 3. Solve for the Hypotenuse: HYP 5 INCH h 4. Solve for the Angle: n ANGLE 53.130102° 5. Solve for the Adjacent Angle: ADJ<Ø 36.8699° n Right Triangle – Based on Hypotenuse and Angle Calculate the Adjacent Angle, Adjacent Leg and Opposite Leg of a right triangle with a Hypotenuse of 12 Inches and a known Angle of 35.34°: KEYSTROKE DISPLAY 0. OO 1.
CIRCLE calculations Circumference and Area – Based on Diameter Find the Area, Circumference and Radius of a circle with a Diameter of 11 Inches: KEYSTROKE OO 11id d d gd (Radius) DISPLAY 0. DIA 11 INCH AREA 95.0332 SQ INCH CIRC 34-9/16 INCH RAD 5-1/2 INCH Circumference and Area – Based on Radius (NOT AVAILABLE ON MODEL 4086) Find the Diameter, Area and Circumference of a circle with a Radius of 3-1/4”: KEYSTROKE OO 3i1/4gd (Radius) d d d DISPLAY 0. RAD 3-1/4 INCH DIA 6-1/2 INCH AREA 33.
(cont'd) Convert 44.29° to degrees:minutes:seconds format: KEYSTROKE OO 44.29g. (dms◄►deg) DISPLAY 0. DMS 44.17.24° Note: Improperly formatted entries will be redisplayed in the correct convention after any operator key is pressed. For example, 30° 89’ entered will be corrected and displayed as 31° 29’ 0” or 31.483333°. Time Calculations Using D:M:S Add 7 Hours 45 Minutes 33 Seconds to 11 Hours 16 Minutes 20 Seconds: KEYSTROKE OO 7.45.33+ 11.16.20= DISPLAY 0. DMS 7.45.33° DMS 19.01.
Given side A and angle a, find: Side C A , a gF (Cos)= (e.g., 3i,53.
APPENDIX A – DEFAULT SETTINGS After a Clear All (g*), your calculator will return to the following settings: STORED VALUES DEFAULT VALUE Number of Teeth 1.
appendix B – preference Settings The Machinist Calc and Machinist Calc Pro have Preference Settings that allow you to customize or set desired unit formats and calculations.
(cont'd) 3) Default Unit Format – US: unitless values stored within Machinist functions are automatically assigned the corresponding default U.S. units of the selected function. – METRIC: unitless values stored within the Machinist functions are automatically assigned the corresponding default Metric units of the selected function. 4) Area Answer – Standard: if units entered are the same – e.g.
5) Volume Answer Format – Standard: if units entered are the same – e.g., Feet x Feet x Feet – the answer will remain in this format (Cubic Feet), but if units entered are different – e.g., Feet x Feet x Inches – volume answer will be displayed in Cubic Feet. – Cubic Feet: volume answers always displayed in Cubic Feet, regardless of unit entry – e.g., Inches x Inches x Inches = Cubic Feet. – Cubic Meters: volume answers always displayed in Cubic Meters, regardless of unit entry – e.g.
appendix C – CARE INSTRUCTIONS Please follow the guidelines listed in this section for proper care and operation of your calculator. Not following the instructions listed below may result in damage not covered by your warranty. Refer to the Warranty section on page 69 for more details. Do not expose calculator to temperatures outside the operating temperature range of 32ºF – 104ºF (0ºC – 40ºC). Do not expose calculator to high moisture such as submersion in water, heavy rain, etc.
Auto-Range — If an “overflow” is created because of an input and calculation with small units that are out of the standard eight-digit range of the display, the answer will be automatically expressed in the next larger units (instead of showing “OFLO”) — e.g., 200,000,000 mm is shown as 200,000 m. Also applies to inches and feet. Auto Shut-Off Your calculator is designed to shut itself off after about 8-12 minutes of non-use. Batteries The Machinist Calc and Machinist Calc Pro use two LR-44 batteries.
Repair and Return Return Guidelines 1. Please read the Warranty in this User’s Guide to determine if your Calculated Industries product remains under warranty before calling or returning any device for evaluation or repairs. 2. If your product won’t turn on, check the batteries as outlined in the User’s Guide. 3. If you need more assistance, please go to the website listed below. 4.
Warranty Warranty Repair Service – U.S.A. Calculated Industries (“CI”) warrants this product against defects in materials and workmanship for a period of one (1) year from the date of original consumer purchase in the U.S. If a defect exists during the warranty period, CI at its option will either repair (using new or remanufactured parts) or replace (with a new or remanufactured calculator) the product at no charge.
Disclaimer CI MAKES NO WARRANTY OR REPRESENTATION, EITHER EXPRESS OR IMPLIED, WITH RESPECT TO THE PRODUCT’S QUALITY, PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE. AS A RESULT, THIS PRODUCT, INCLUDING BUT NOT LIMITED TO, KEYSTROKE PROCEDURES, MATHEMATICAL ACCURACY AND PREPROGRAMMED MATERIAL, IS SOLD “AS IS,” AND YOU THE PURCHASER ASSUME THE ENTIRE RISK AS TO ITS QUALITY AND PERFORMANCE.
Legal Notes Software copyrighted and licensed to Calculated Industries by Specialty Calculator Technologies, LLC, 2010. User’s Guide copyrighted by Calculated Industries, Inc., 2010. Machinist Calc™ and Machinist Calc™ Pro are trademarks and Calculated Industries® is a registered trademark of Calculated Industries, Inc. © 2010. ALL RIGHTS RESERVED Designed in the U.S.A.
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