Machinist calc® pro 2 The Machinist Calc® Pro 2 Advanced Machining Math + Materials calculator (Model 4088) provides hundreds of fast, precise machining-specific solutions for turning, drilling, boring and face, end and slot milling. Built-in tables for 20 materials, 6 processes and 3 tools will let you spend much less time looking up your most-needed calculations on charts, in books or on the Internet and more time machining.
USING THE MACHINIST CALC PRO 2..................................15 U.S./METRIC MODES............................................................15 MATERIALS, PROCESSES AND TOOLS..............................15 Materials..............................................................................15 Processes............................................................................16 Tools....................................................................................17 RPM (SPINDLE SPEED).............
internal thread..............................................................39 external thread.............................................................40 Thread Classification...................................................40 Changing Thread Classes...................................................41 Changing a U.S. Thread Classification................................41 Changing a Metric Thread Classification.............................41 Numeric Thread Size.......................................
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. gO Off — Turns all power off. Clears all nonpermanent values. +-* Arithmetic operation keys ,= 0-9 and . Keys used for entering numbers. g Convert — Used with the dimensional keys to convert between units or with other keys to access special functions. gr Store — Used for storing values.
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. g7 Feet — Identifies entry as Feet, with repeated presses of g7 toggling between linear, area and volume units. Also used with i and / for entering Feet-Inch values. Repeated presses of g7 during conversions toggle between Feet-Inch-Fractions and decimal Feet.
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.
g/ 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. g% x2 — Squares the value on the display. A Backspace Function — Used to delete entries one keystroke at a time (unlike the O function, which deletes the entire entry).
d Diameter — Enters a Diameter. Calculates circle Area and Circumference given entered Diameter. gd Bolt Pattern — Enters the number of holes in a Bolt Pattern. Calculates the hole Center-to-Center Spacing and the x and y coordinates for each hole in a Bolt Pattern given entered Diameter, Number of Bolt Holes, Starting Angle (optional) and Center x and y coordinates. N Material — Scrolls through 20 Material types.
gL Length of Cut (LOC) — Enters a Cut Length to calculate Cut Time. S Surface Feet per Minute — Enters or calculates Cutting Speed. Unitless entries are assumed to be Feet in U.S. mode, meters in Metric mode. Calculates Cutting Speed given entered Diameter and RPM. Provides tabular Cutting Speed based on Process, Material, Tooling, Depth of Cut, Width of Cut and Diameter. gS Wire Size — Enters or calculates Wire Size for 3-Wire Measurements.
gT Inches per Revolution (IPR) — Enters or calculates Cutting Feed or Feed per Revolution (IPR). Provides tabular Feed per Revolution based on Process, Material, Tooling and Depth of Cut. I Inches per Minute — Enters or calculates Feed Rate or Feed per Minute (IPM). When applicable, also provides Material Removal Rate and Cut Time. gI Number of Teeth (#Teeth) — Enters the Number of Teeth on a tool. Default value is 1.
gt Thread Classification (Thread Class) — Used to select the Thread Class for numeric and fractional Threads and the Tolerance Class for metric Threads. The default Class for numeric and fractional Thread Sizes is 2B (Internal) and the default Tolerance Class for metric Thread Sizes is 6H (Internal). See Thread Sizing section for further details on available Classes. g8 Alpha — Enters alphabet character selection mode.
n Angle (θ) — Enters or calculates an Angle, providing the Adjacent Angle for both instances. Calculates an Angle given two other right-triangle values. Also enters Lead Angle adjustment for Face Milling, as well as Starting Angle of the first hole of a Bolt Pattern, with 0° being the three oʼclock position and the rotation going counterclockwise. memory operation Whenever the M key is pressed, the displayed value will be added to the Memory.
(cont'd) 255M 745gM (M-) M+ & 255. M745. & TOTAL VALUE rM M+ & - 135. AVERAGE VALUE M M+ & TOTAL ENTRIES M M+ & rr M+ - 45. 3. - 135. 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 (gr1).
175gr1 MEMORY M-Ø1 175. 0. gOO r1 MEMORY M-Ø1 175. 0gr1 MEMORY M-Ø1 0. Using the machinist calc pro 2 U.S. AND METRIC MODE SETTINGS The Machinist Calc Pro 2 allows you to set the calculator to use either U.S. Mode or Metric Mode. The default setting is U.S. units. You can change to Metric Mode by changing your Preference setting (see page 65). The examples in this User's Guide are done in U.S. Mode.
(cont'd) 4. 4140 Chromium-Molybdenum Alloy Steel 5. 4340 Nickel-Chromium-Molybdenum Alloy Steel 6. 52100 Chromium Alloy Steel 7. 304 Austenitic Stainless Steel 8. 316 Austenitic Stainless Steel 9. 410 Martensitic Stainless Steel 10. 430 Ferritic Stainless Steel 11. P20 Mold Type Tool Steel 12. H13 Hot Work Tool Steel 13. 2024-T3 Wrought Aluminum Alloy 14. 6061-T6 Wrought Aluminum Alloy 15. A390.0-T5 Cast Aluminum Alloy 16. Ti-6Al-4V Alpha-Beta Titanium Alloy 17. Ti-10V-2Fe-3Al Beta Titanium Alloy 18.
1. Face Milling (Default) 4. Turning 2. End Milling 5. Boring 3. Slot Milling 6. Drilling Tools The Machinist Calc Pro 2 has three built-in Tool Types that can be used to determine tabular Feed and Speed values. You can scroll through the available Tool Types by repeatedly pressing the L key, or by pressing the + key or - key to scroll forward and backward through the Tools.
(cont'd) .375d DIAMETER 0.375 INCH 2. Enter the Cut Speed: 300S CUT SPEED /MIN 300. FEET 3. Calculate the Spindle Speed (RPM): R RPM 3056. RPM – Face Milling Find the Spindle Speed when milling 1060 Hi-Carbon Steel (3) with a 0.5" High Performance bit (3) at a Depth of Cut of 0.25": 1. Clear the calculator: 0. OO 2. Set Process to Face Milling: 1P FACE MILLING 1. 3. Set Tooling to High Performance: 3L high performance TOOL 3. 4. Set Material to 1060 Hi-Carbon Steel: 3N 1060-HI C.
.5d DIAMETER 0.5 INCH 7. Calculate RPM: R rpm 4584. 8. Show tabular Cut Speed: R cut speed /MIN 600. FEET 9. Now, change the Depth of Cut to 0.1" and find new RPM and tabular Cut Speed: .1gN (DOC) R R DEPTH OF CUT rpm 0.1 INCH 6875. cut speed /MIN 900. feet RPM – End Milling Find the Spindle Speed when milling 316 Stainless Steel with a 1" 4-fluted Uncoated Carbide bit at a 0.5" radial Width of Cut. Then, change the Depth of Cut to 0.25" and recalculate: 1. Clear the calculator: 0. OO 2.
4. Set Material to 316 Stainless Steel (selection #8): 8N 316-aus. s. STEEL MATL 8. 5. Enter Width of Cut: .5gP (WOC) widTH OF CUT 0.5 INCH 6. Enter Tool Diameter: 1d DIAMETER 1. INCH 7. Calculate RPM: R rpm 802. 8. Show tabular Cut Speed: R cut speed /MIN 210. FEET 9. Now, change Width of Cut to 0.25" and find new RPM and tabular Cut Speed: .25gP (WOC) R R WIDTH OF CUT RPM cut speed /MIN 0.25 INCH 859. 225.
Feed Rate – Based on Cutting Feed and RPM (for Turning) Calculate the Feed Rate if you are turning a 1" steel round stock down using a Cutting Feed of 0.031 Inches per Revolution and a rotational speed of 900 RPM: 0. OO 1. Enter the Feed per Revolution: .031gT (IPR) feed/REV. 0.031 inch 2. Enter the RPM: 900R RPM 900. 3. Calculate the Feed Rate: I Feed/minute 27.
(cont'd) I feed/minute 3.200 inch 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 0.005" turning at 1,000 RPM: RPM: 1000 Feed per Tooth: 0.005″ Number of Teeth: 4 Feed Rate g* ALL CLEARED 0. 1. Enter the Feed per Tooth: 5BT feed/tooth 0.005 inch 2. Enter the Number of Teeth: 4gI (#Teeth) number of teeth 4. 3. Enter the RPM: 1000R rpm 1000. 4.
Feed Rate – End Milling For End Milling (2), find the Feed Rate (IPM) using 1020 Low-Carbon Steel (1) and a 4-Tooth High Speed Steel Tool (1) with a Diameter of 0.5", a 0.25" Width of Cut and a 20" Length of Cut. Then, change the Width of Cut to 0.15" to show the Adjusted Feed per Tooth and the RCT Adjustment Factor. Then, add a 0.125" Depth of Cut and find the Material Removal Rate, Spindle Power and Spindle Torque: g* ALL CLEARED 0. 1. Select the Process: 2P end milling 2. 2.
(cont'd) 7. Enter the Diameter: .5d diameter 0.5 inch 8. Calculate the Feed Rate: I feed/minute 3.667 inch 9. Calculate the Cut Time: I cut time MIN 5.454 10. Calculate the RPM: I rpm 917. 11. Change the Width of Cut (Radial Chip Thinning Adjustment): .15gP (WOC) WIDTH OF CUT 0.15 INCH 12. Recalculate Feed Rate, Cut Time and RPM: I I I FEED/MINUTE cut time MIN rpm 9.336 INCH 2.142 1070. 13. Show Adjusted Feed per Tooth and RCT Adjustment Factor: feed/tooth I ADJ. 0.
rct. adj. factor I 1.091 14. Now, add a 0.125" Depth of Cut and find the Material Removal Rate, Spindle Power and Spindle Torque: depth of cut 0.125 inch .125gN (DOC) FEED/MINUTE I 9.336 INCH I MATERIAL REMOVAL /MIN 0.175 CU INCH I SPINDLE POWER HP 0.123 I SPINDLE TORQUE LBFT 0.602 cutting speed - sfm Cutting Speed (SFM) is the speed of the workpiece surface relative to the edge of the cutting tool during a cut, typically measured in Surface Feet per Minute.
(cont'd) 300R RPM 300. 3. Calculate the Cutting Speed: S cut speed /MIN 314. FEET Cutting Speed – End Milling Find the Cutting Speed when End Milling (2) using 1060-High Carbon Steel (3) using a High Performance 0.5" bit (3) and 0.1" radial Width of Cut: 0. OO 1. Select the Process: 2P end milling 2. 2. Select the Tooling: 3L HIGH PERFORMANCE TOOL 3. 1060-hi C. steel MATL 3. 3. Select the Material: 3N 4. Enter the Width of Cut: .1gP (WOC) WIDTH OF CUT 0.1 INCH 5. Enter the Diameter: .5d 6.
S CUT SPEED /MIN 370. 7. Calculate the RPM: S RPM 2827. Cutting Speed – Drilling Find the Cutting Speed for Drilling (6) 1020-Low Carbon Steel (1) with a 0.5" HSS (1) drill: g* ALL CLEARED 0. 1. Select the Process: 6P DRILLING 6. 2. Select the Tooling: 1L HIGH speed steel TOOL 1. 1020-Lo C. steel MATL 1. 3. Select the Material: 1N 4. Enter the Drill Size: .5D 1/2" DRILL SIZE 0.500 INCH 5. Find the Cutting Speed: S CUT SPEED /MIN 85. FEET 6. Calculate the Spindle Speed: S RPM 649.
(cont'd) 7. Change the Material to 1060-High Carbon Steel and recalculate: 3N S S 1060-hi C. Steel MATL CUT SPEED /MIN 3. 65. FEET RPM 497. feed per tooth/chip load - IPT Feed per Tooth (IPT), or Chip Load, is the distance that the workpiece feeds into each tooth on a multi-point cutting tool as it rotates. You can calculate Feed per Tooth given values for Number of Teeth and Cutting Feed (IPR).
Feed per Tooth – Based on Feed Rate, RPM and # of Teeth Calculate Feed per Tooth (IPT) with a Feed Rate (IPM) of 12.8" per Minute, 4 Teeth and a Spindle Speed of 775 RPM: 0. OO 1. Enter the Feed Rate: 12.8I feed/Minute 12.8 inch 2. Enter the Number of Teeth: 4gI (#Teeth) number of teeth 4. 3. Enter the RPM: 775R rpm 775. 4. Calculate the Feed per Tooth: T feed/tooth 0.
(cont'd) high speed steel 1L TOOL 1. 4140-alloy steel MATL 4. 3. Select the Material: 4N 4. Enter the Number of Teeth: 2gI (#Teeth) number of teeth 2. 5. Enter the Depth of Cut: .1gN (DOC) 6. Enter the Diameter: 1d Depth of cut 0.1 inch diameter 1. inch 7. Find the Feed per Tooth and other values: T feed/tooth 0.012 inch T feed/minute T number of teeth T rpm 12.376 INCH 2. 516. 8. Now, add a Width of Cut to 0.15" and a 45° Lead Angle and recalculate: width of cut .15gP (WOC) 0.
45 n angle (Ө) 45.° feed/tooth T ADJ. 0.024 inch T T T T T FEED/MINUTE 24.508 INCH NUMBER OF TEETH 2. RPM 516. rct. adj. factor 1.400 lead angle adj. 1.414 cutting feed – ipr Cutting Feed is the distance the cutting tool or workpiece advances during one revolution of the spindle, typically measured in Inches per Revolution (IPR). You can calculate Cutting Feed given values for the Feed per Tooth or Chip Load (IPT) and Number of Teeth.
(cont'd) .005T FEED/TOOTH 0.005 inch 2. Enter the Number of Teeth: 4gI (#Teeth) Number of Teeth 4. 3. Calculate the Cutting Feed: gT (IPR) feed/rev. 0.020 inch Cutting Feed – Based on Feed Rate and RPM Calculate the Cutting Feed (IPR) using a 15" Feed Rate (IPM) and a Spindle Speed of 800 RPM: 0. OO 1. Enter the Feed Rate: 15I FEED/minute 15. inch 2. Enter the Spindle Speed: 800R RPM 800. 3. Calculate the Cutting Feed: gT (IPR) 32 — Machinist Calc ® Pro 2 feed/rev. 0.
Cutting Feed – Turning Find the Cutting Feed (IPR) when Turning (4) 1", 1020 Low-Carbon Steel (1) at a 0.1" Depth of Cut using a High Speed Steel (1) bit: g* ALL CLEARED 4P TURNING 0. 1. Select the Process: 4. 2. Select the Material: 1N 1020-lo c. steel MATL 1. high speed steel TOOL 1. 3. Select the Tool: 1L 4. Enter the Depth of Cut: .1gN (DOC) depth of cut 0.1 inch 5. Enter Diameter: 1d DIAMETER 1. INCH 6. Find the Cutting Feed: gT (IPR) FEED/REV. 0.
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). The selected Drill Size is displayed along with its decimal Inch equivalent. If the entered value doesn't match a Drill Size, the nearest Drill Size is displayed.
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. The desired letter can be selected by scrolling through Alpha Mode until the letter is reached or by specifying the numerical order of the letter within the alphabet prior to entering Alpha Mode. Both methods are shown below. Select Drill Size E by scrolling through Alpha Mode.
(cont'd) 5. Enter order of letter G and enter Alpha Mode: 7g8 (Alpha) 6. Enter as Drill Size: D* ALPHA CHARACTER G "g" DRILL SIZE 7. 0.261 INCH * Repeated presses of D display the next larger Drill Sizes. The + and - keys will scroll 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, scroll through the available sizes to view the next larger and next smaller sizes: 0. OO 1. Enter the 0.
3. Enter the 1-19/64" hole size and view next larger and next smaller sizes: 1-19/64" DRILL 1i19/64D SIZE 1.297 INCH D 33.00mm DRILL SIZE 1.299 INCH -- 1-9/32" DRILL SIZE 1.281 INCH Millimeter Drill Size Entry Enter a 5.7 mm hole size and scroll through the available sizes to view the next larger and next smaller sizes: 0. OO 1. Enter the hole size as millimeters: 5.7mD 5.70mm DRILL SIZE 0.224 INCH 2. View next larger and next smaller sizes: D -- 5.75mm DRILL SIZE 0.226 INCH #2 DRILL SIZE 0.
(cont'd) 0. OO 1. Enter the Drill Size: 1/2D 1/2" DRILL SIZE 0.500 INCH 2. Enter 118° Angle and calculate the Drill Point Cut Depth: 118gD (Drill Point) DRILL POINT CUT DPTH 0.150 INCH D DRILL CUT ANGLE 118.000° D 1/2" DRILL SIZE 0.500 INCH 3. Enter 127° Angle and calculate the Drill Point Cut Depth: 127gD DRILL POINT CUT DPTH 0.
The following specifies the entry ranges that the calculator allows for the Thread Size and TPI/Pitch values for numeric, fractional and metric Thread Sizes: Numeric Thread Size TPI/Pitch 0, 1, 2, 3, 4, 5, 6, 8, 10, 12, 14 less than 100 Fractional 0.06" to 6" less than 100 Metric less than or equal to 10 1.6 mm to 300 mm Note: Entries outside of the ranges mentioned above will result in an Entry Error.
External Thread Thread Size Minimum Pitch Diameter Thread Pitch* Maximum Major Diameter Cut Rod Size Minimum Major Diameter Roll Shank Size Maximum Minor Diameter Maximum Pitch Diameter * Thread Pitch is only displayed for Numeric and U.S. Thread Sizes. Thread Classification With the Machinist Calc Pro 2 you can choose between Internal and External Threads. Entering a U.S. Thread Size will allow you to choose among U.S. Thread Classes as shown below. Thread Type U.S.
Changing Thread Classes To display the current Thread Classification, press gt. Repeated presses of t will toggle between External and Internal Thread Types. You can change the number of a Thread Class by entering the number of the desired class/ grade and pressing gt. Changing a U.S. Thread Classification g* ALL CLEARED 0. 1. Recall the current Thread Classification: gt (Thread Class) U.S. INT. THREAD 2b 2. 2. Change to U.S. External Thread Class 2: t U.S. EXT. THREAD 2a 2. 3. Change to U.S.
(cont'd) 4gt (Thread Class) MM INT. THREAD 4H 4. 2. Scroll through the available Tolerance Positions for the entered Grade: t MM EXT. THREAD 4g 4. t MM EXT. THREAD 4h 4. t MM EXT. THREAD 4e 4. t MM EXT. THREAD 4f 4. t MM INT. THREAD 4G 4. t MM INT. THREAD 4H 4. 3. Enter a Tolerance Grade of 6 and scroll through the available Tolerance Positions for the entered Grade: MM INT. THREAD 6H 6. t MM EXT. THREAD 6g 6. t MM EXT. THREAD 6h 6. t* MM EXT. THREAD 6e 6.
Numeric Thread Size Enter an 8-32 screw and scroll through the available Internal Thread (Class 2B) characteristics, then switch to External Thread (Class 2A) and scroll through the available Thread characteristics: Note: The default U.S. Thread Class is 2B (Internal). To view the current Thread Class, press gt. To change the class, press t again. Thread Size calculations for Pitch, Major, and Minor Diameter attributes are compliant with ANSI/ASME B.1.1-2003 and ANSI/ ASME B.1.13M-2005. g* ALL CLEARED 0.
(cont'd) t CLOSE FIT DRILL #18 0.170 INCH t FREE FIT DRILL #16 0.177 INCH t PITCH DIAMETER MIN 0.144 INCH t PITCH DIAMETER MAX 0.147 INCH t MINOR DIAMETER MIN 0.130 INCH t MINOR DIAMETER MAX 0.139 INCH t MAJOR DIAMETER MIN 0.164 INCH 5. Switch to Thread Class 2A: gtt (Thread Class) U.S. EXT. THREAD 2A 2. 6. Clear the display and find the available External Thread characteristics: 0. O t THREAD SIZE 2A t THREAD PITCH 0.031 INCH t ROD SIZE 8 - 32 0.164 INCH t COLD FORM SIZE 0.
t PITCH DIAMETER MIN 0.140 INCH t MAJOR DIAMETER MAX 0.163 INCH t MAJOR DIAMETER MIN 0.157 INCH t MINOR DIAMETER MAX 0.126 INCH Fractional Thread Size Find the available Internal and External Thread characteristics for a 1/4 Inch, 28 TPI screw: g* ALL CLEARED 0. 1. Verify Thread Class is set to 2B: gt (Thread Class) U.S. INT. THREAD 2B 2. 2. Enter the Thread Size: 1/4t THREAD SIZE 2B 0.25 - INCH 3. Enter the TPI and store the final Thread Size: 28t THREAD SIZE 2B 0.25 - 28 INCH 4.
(cont'd) t CLOSE FIT DRILL F 0.257 INCH t FREE FIT DRILL H 0.266 INCH t PITCH DIAMETER MIN 0.227 INCH t PITCH DIAMETER MAX 0.231 INCH t MINOR DIAMETER MIN 0.211 INCH t MINOR DIAMETER MAX 0.220 INCH t MAJOR DIAMETER MIN 0.250 INCH 5. Switch to Thread Class 2A: gtt (Thread Class) U.S. EXT. THREAD 2A 2. 6. Clear the display and find the available External Thread characteristics: O 0. t THREAD SIZE 2A 0.25 - 28 INCH t THREAD PITCH t ROD SIZE 0.036 INCH 0.250 INCH t COLD FORM SIZE 0.
t PITCH DIAMETER MIN 0.223 INCH t MAJOR DIAMETER MAX 0.249 INCH t MAJOR DIAMETER MIN 0.243 INCH t MINOR DIAMETER MAX 0.207 INCH Metric Thread Size 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 gt after entering the desired Thread Size. To change the class, press t again. g* ALL CLEARED 0. 1.
(cont'd) t ROLL TAP DRILL #14 0.182 inch t CLOSE FIT DRILL 5.300 MM t FREE FIT DRILL 5.800 MM t PITCH DIAMETER MIN 4.513 MM t PITCH DIAMETER MAX 4.588 MM t MINOR DIAMETER MIN 4.188 MM t MINOR DIAMETER MAX 4.306 MM t MAJOR DIAMETER MIN 5.000 MM 5. Switch to External 4g Tolerance Class: gtt (Thread Class) MM EXT. THREAD 4g 4. 6. Clear the display and find the available External Thread characteristics: O 0. t THREAD SIZE 4g 5. - 0.75 MM t ROD SIZE 5.000 MM t COLD FORM SIZE 4.
t PITCH DIAMETER MIN 4.435 MM t MAJOR DIAMETER MAX 4.978 MM t MAJOR DIAMETER MIN 4.888 MM t MINOR DIAMETER MAX 4.166 MM Custom Thread Percentage The Machinist Calc Pro 2 uses a default Thread Grip Percentage of 75% when calculating Tap Drill sizes. With the custom Percentage Thread function, you can enter a different value to calculate Tap Drill sizes. Calculate the Tap Drill Size for a 0.
(cont'd) 2. Change the Thread Grip Percentage to 50% and calculate the new Cut Tap and Roll Tap Drill Sizes: 50gn (% of Thread) THREAD % - GRIP 50. t THREAD SIZE 2B 0.25 - 26 INCH t THREAD PITCH 0.038 INCH t TAP DRILL SIZE #1 0.228 INCH t ROLL TAP DRILL 6.000 MM * Repeated presses of t will scroll through the inputs and outputs starting with the close Fit Drill Size.
3. Find the Ideal, Maximum and Minimum Wire Sizes: gS (Wire Size) IDEAL WIRE SIZE 0.036 INCH S MAX WIRE SIZE 0.056 INCH S MIN WIRE SIZE 0.035 INCH 3-Wire Measurement – Known Thread Size and Wire Size You can find the Minimum and Maximum 3-Wire Measurements as well as the Pitch Diameters if you know the Thread Size and the Wire Size you want to use.
(cont'd) 16t THREAD SIZE 2A 0.375 - 16 INCH 4. Enter the Wire Size**: .04gS (Wire Size) STORED WIRE SIZE 0.04 INCH 5. Find the Minimum 3-Wire Measurement: gR (3W Measure) 3-WIRE MEASURE MIN 0.395 INCH 6. Find the Maximum 3-Wire Measurement: R 3-WIRE MEASURE MAX 0.399 INCH 7. Find the Minimum Pitch Diameter: R PITCH DIAMETER MIN 0.329 INCH 8. Find the Maximum Pitch Diameter: R PITCH DIAMETER MAX 0.333 INCH R STORED WIRE SIZE 0.
1. If necessary, set the Thread Class to 2A: 2gt* (Thread Class) U.S. EXT. THREAD 2A 2. * If necessary, continue pressing t until the desired External Thread Class is displayed. 2. Enter the Thread Size: .375it THREAD SIZE 2A 0.375 - INCH 3. Enter the Threads per Inch: 16t THREAD SIZE 2A 0.375 - 16 INCH 4. Enter the Wire Size**: .04gS (Wire Size) STORED WIRE SIZE 0.04 INCH 5. Enter the 3-Wire Measurement: .3975gR 3-WIRE MEASURED (3-W Measure) 0.3975 INCH 6.
BOLT PATTERN With the Machinist Calc Pro 2, you can determine a Bolt Pattern by entering the Bolt Circle Diameter, the Number of Bolt Holes and the Angle of the first bolt hole (optional). You can also enter an optional center x and y-coordinate of the Bolt Pattern. In addition to calculating the x and y-coordinates for each bolt hole, the Bolt Pattern function also calculates the hole centerto-center spacing (i.e. On-center distance from hole to hole).
3. Enter the Start Angle: 20n ANGLE (Ө) 20.° 4. Enter Bolt Circle Diameter: 3.5d diameter 3.5 INCH 5. Enter the Number of Bolts: 3gd (Bolt Pattern) NUMBER OF BOLTS 3. 6. Calculate center-to-center Spacing and the x and y coordinates: d OC SPACING 3.031 INCH d BOLT POSITION X-Ø1 11.644 INCH d BOLT POSITION Y-Ø1 15.599 INCH d BOLT POSITION X-Ø2 8.659 INCH d BOLT POSITION Y-Ø2 16.125 INCH d BOLT POSITION X-Ø3 9.696 INCH d BOLT POSITION Y-Ø3 13.277 INCH d BOLT CIRCLE DIA X-Ø2 3.
(cont'd) d BOLT PATTERN CTR Y-ØØ 15.000 INCH d STARTING ANGLE 20.000 ° right triangle functions With the Machinist Calc Pro 2, you can easily solve Right Triangle problems by simply entering two of four variables: Adjacent, Opposite, Hypotenuse or Angle. Right Triangle – Based on Adjacent and Opposite Legs Calculate the Hypotenuse, Angle and Adjacent Angle of a right triangle with an Adjacent Leg of 3 Inches and an Opposite Leg of 4 Inches: B Opposite Leg: 4 Hypotenuse Adjacent Leg: 3 A 0. OO 1.
3. Solve for the Hypotenuse: hypotenuse (r) 5.000 inch h 4. Solve for the Angle (A): angle (Ө) n 53.130° 5. Solve for the Adjacent Angle (B): adjacent angle 36.870° 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°: 0. OO 1. Enter the Hypotenuse: 12ih hypotenuse (r) 12. inch 2. Enter the known Angle: 35.34n angle (Ө) 35.34° 3.
(cont'd) 5. Solve for the Opposite Leg: o opposite (y) 6.941 inch circle calculations Circumference and Area – Based on Diameter Find the Area and Circumference of a circle with a Diameter of 11 Inches: 0. OO 11id diameter 11. inch d circular area 95.033 SQ inch d circumference 34.558 inch basic d:m:s and trigonometry examples Converting Degrees:Minutes:Seconds Convert 23°42'39" to decimal degrees: OO 0. 23.42.39 dms 23.42.39 g. (dms◄►deg) 23.710833° Convert 44.
Time Calculations Using D:M:S Add 7 Hours 45 Minutes 33 Seconds to 11 Hours 16 Minutes 20 Seconds: OO 0. 7.45.33+ dms 7.45.33° 11.16.20= dms 19.01.53° Trigonometric Functions The following drawing and formulas list basic trigonometric formulas, for your reference: Given Side A and angle a, find: Side C A , a go (Cos) = (e.g., 3i,53.
(cont'd) Given Side B and angle a, find: Side A B , a gh (Tan) = Side C B , a ga (Sine) = Given Side C and angle a, find: Side A C * a go (Cos) = Side B C * a ga (Sine) = Given Side A and Side C, find: Angle a A , C =gi (ArcCos) Angle b A , C = gm (ArcSine) Given Side B and Angle b, find: Side C B , b go (Cos) = Side A B * b gh (Tan) = 60 — Machinist Calc ® Pro 2
(cont'd) User's Guide — 61 Hardness 120-170 HB 160-210 HB 180-230 HB 175-225 HB 175-225 HB 175-225 HB Material Low-carbon Steel Medium-carbon Steel High-carbon Steel Chromiummolybdenum Alloy Steel Nickelchromiummolybdenum Alloy Steel Chromium Alloy Steel 52100 4340 4140 1060 1045 1020 AISI /ASTM/ SAE 100Cr6 40NiCrMo8-4 34CrNiMo6 36CrNiMo4 40NiCrMo6 41CrMo4 42CrMo4 C60 Ck 60 C45 Ck 45 C22 DIN 1.3505 1.6562 1.6582 1.6511 1.6565 1.7223 1.7225 1.0601 1.1221 1.0503 1.1191 1.
Hardness 150-200 HB 150-200 HB 150-200 HB 135-185 HB 150-200 HB 200-250 HB 120 HB Material Austenitic Stainless Steel Austenitic Stainless Steel 62 — Machinist Calc ® Pro 2 Martensitic Stainless Steel Ferritic Stainless Steel Mold type Tool Steel Hot work type Tool Steel Copper Al Alloy 2024-T3 H13 P20 430 410 316 304 AISI /ASTM/ SAE 1.4401 1.4436 1.4580 1.4000; 1.4001 1.
User's Guide — 63 Hardness 95 HB 125 HB 32-36 HRC 38-41 HRC 36 HRC 89 HRB 37 HRC Material Magnesium and Silicon Al Alloy Silicon, Copper, and Magnesium Cast Al Ti-6Al-4V Alloy Ti-10V-2Fe-3Al Alloy Nickel-base Heat Resistant alloys Nickel-base Heat Resistant alloys Cobalt-base Heat Resistant alloy Haynes alloy 188 Alloy X Alloy 718 Beta alloy Alpha-beta alloy A390.0-T5 6061-T6 AISI /ASTM/ SAE NiCr22FeMo NiCr19Fe19NbMo TiAl6V4 AlMgSiCu DIN 2.4665 2.4668 3.
appendix B – default settings After a Clear All (g*), your calculator will return to the following settings: STORED VALUES DEFAULT VALUE Material None Process Face Milling Tool High Speed Steel Tool Number Of Teeth 1 Drill Cut Angle 118° Weight per Volume 490 Pounds Per Cubic Foot % Thread Grip 75% Thread Classification U.S.
appendix c – preference settings The Machinist Calc Pro 2 has Preference Settings that allow you to customize or set desired unit formats and calculations. If you replace your batteries or perform a Full Reset* (turn calculator off, hold down *, and press O), your calculator will return to the following settings (in addition to those listed on the previous page), with the default setting for each preference listed first: *Depressing the Reset button located above the d key will also perform a Full Reset.
(cont'd) 3) Functional Result Rounding – 0.000 (FIX): calculation results using Machinist functions are always displayed to three decimal places. – 0.0000 (FIX): calculation results using Machinist functions are always displayed to four decimal places. – 0. (ACTUAL): calculation results using Machinist functions are always displayed to the maximum number of decimal places. 4) Area Answer Format – Standard: if units entered are the same – e.g.
5) Volume Answer Format – Standard: if units entered are the same – e.g., Inch x Inch x Inch – the answer will remain in this format (Cubic Inch), but if units entered are different – e.g., Feet x Feet x Inches – volume answer will be displayed in Cubic Inch. – 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 D – BASIC CALCULATOR FUNCTIONS and dIMENSIONAL MATH OPERATIONS Entering dimensions Note: Unlike other Calculated Industries/Construction Master calculators, the Machinist Calc Pro 2 does 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.
14 square Inches 14ii 11 square millimeters 11mm 1.5 cubic meters 1.5g999 3 cubic Feet 3g7g7g7 conversions Linear Conversions Convert 10 Feet 6 Inches to other dimensions, including metric: OO 0. 10g76i 10 FEET 6 INCH gB* 126.000 INCH g7 (Feet) 10.5 FEET gi 126. INCH gm 3200.4 MM g5 (cm) 320.04 CM g9 (m) 3.2004 M * Converting a linear value using the B key will result in the decimal Inch equivalent of the value, rounded to three decimal places.
(cont'd) Convert 17.32 Feet to Feet-Inch-Fractions: OO 0. 17.32g7 (Feet) 17.32 FEET = g7 17 FEET 3-27/32 INCH g7 17.32 FEET gi 207.84 INCH g7g7 17 FEET 3-27/32 INCH Convert 8-1/8 Inches to decimal Inches. Then convert to decimal Feet: OO 0. 8i1/8 8-1/8 INCH gi 8.125 INCH g7 (Feet) 0.6770833 FEET Convert 9.0625 Inches to decimal Feet. OO 0. 9.0625i 9.0625 INCH g7 (Feet) 0.7552083 FEET Square and Cubic Conversions Convert 6 square Feet to other square dimensions: OO 0.
Convert 0.05 cubic meters to other dimensions: OO 0. . 05g999 (m) 0.05 CU M gm 50000000. CU MM g5 (cm) 50000. CU CM gi 3051.1872 CU INCH g7 (Feet) 1.7657333 CU FEET Weight Conversions Convert 1.5 tons to pounds and kilograms: OO 0. 1.5g6 (tons) 1.5 TON g1 (kg) 1360.7771 KG g4 (lbs) 3000. LBS Weight per Volume and Volume Conversions Convert 2 cubic Feet of stainless steel to pounds, tons, kilograms, and metric tons if the steel weighs 7,480 kilograms per cubic meter: 0. OO 1.
(cont'd) g6 (tons) TON 0.4669611 g1 (kg) KG 423.62003 g3 (met tons) MTON 0.42362 4. Change the weight per volume back to the default value: 490g00 (wt/vol) LBS./ CU. FEET 490. * The number of 0 presses may vary, depending on the last units displayed when wt/vol was last recalled/stored. By default, pounds per cubic foot is displayed first. Calculating Percentages The % key can be used for finding a given percent of a number or for working add-on, discount or division percentage calculations.
BASIC MATH OPERATIONS Adding and Subtracting Dimensions Add the following measurements: • 6 Feet 2-1/2 Inches • 11 Feet 5-1/4 Inches • 18.25 Inches Then subtract 2-1/8 Inches: 6g72i1/2+ 6 FEET 2-1/2 INCH 11g75i1/4+ 17 FEET 7-3/4 INCH 18.25i= 19 FEET 2 INCH -2i1/8= 18 FEET 11-7/8 INCH Multiplying Dimensions Multiply 5 Feet 3 Inches by 11 Feet 6-1/2 Inches: 5g73i* 5 FEET 3 INCH 11g76i1/2= 60.
appendix E – accuracy/errors, auto shut-off, batteries, reset Error Codes DISPLAY ERROR TYPE OVERFLOW Overflow (too large) MATH ERROR Divide by 0 DIMENSION ERROR Dimension error ENTRY ERROR Invalid entry error auto shut-off Your calculator is designed to shut off after about 4 minutes of non-use. battery The Machinist Calc Pro 2 uses one CR2025 (included). This should last approximately 800 hours of actual use. Should your calculator display become very dim or erratic, replace the battery.
reset If your calculator should ever "lock up," insert the tip of a paperclip or a small diameter wire into the small Reset hole above the d key. 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 battery as outlined in the User's Guide. 3.
warranty 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.
Repair Service – Outside the U.S.A. To obtain warranty or non-warranty repair service for goods purchased outside the U.S., contact the dealer through which you initially purchased the product. If you cannot reasonably have the product repaired in your area, you may contact CI to obtain current product repair information and charges, including freight and duties.
FCC Class B This equipment has been certified to comply with the limits for a Class B calculating device, pursuant to Subpart J of Part 15 of FCC rules. Legal Notes Software copyrighted and licensed by Calculated Industries, Inc., 2014. User's Guide copyrighted by Calculated Industries, Inc., 2014. Machinist Calc® and Calculated Industries® are registered trademarks of Calculated Industries, Inc. © 2014. ALL RIGHTS RESERVED Designed in the U.S.A.
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