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CI MAKES NO WARRANTY OR REPRESENTATION, EITHER 
ExPRESS OR IMPLIED, WITH RESPECT TO THE PRODUCT’S 
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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 
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and replace all others, oral or written, expressed or implied. No CI 
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extension, or addition to this warranty.
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the above limitation or exclusion may not apply to you. This warranty 
gives you specific rights, and you may also have other rights, which 

vary from state to state.

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.

Summary of Contents for 4087

Page 1: ......

Page 2: ...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 an...

Page 3: ...ional Resolution 14 PREFERENCE SETTINGS 15 ENTERING DIMENSIONS 16 Linear Dimensions 16 Square and Cubic Dimensions 17 CONVERSIONS 17 Linear Conversions 17 Square and Cubic Conversions 19 Weight Conver...

Page 4: ...er Tooth Based on Cutting Feed and of Teeth 33 Feed per Tooth Based on Feed Rate RPM and of Teeth 34 Radial Chip Thinning 34 Radial Chip Thinning Based on Feed per Tooth Tool Diameter and Cut Depth 34...

Page 5: ...Adjacent and Opposite Legs 54 Right Triangle Based on Hypotenuse and Angle 55 CIRCLE calculations 55 Circumference and Area Based on Diameter 55 Circumference and Area Based on Radius 56 Basic D M S a...

Page 6: ...lears all non permanent 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 f...

Page 7: ...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 fractional Feet In...

Page 8: ...ic 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 g0 Weight per Volume wt vol Stores a new weight per volum...

Page 9: ...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 unlik...

Page 10: ...epth 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 Inc...

Page 11: ...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 optional gb Thread Classification...

Page 12: ...Enters the Cutting Angle of a Drill Point Calculates the Drill Point Cut Depth that needs to be taken into account when it s necessary to maintain a specific full diameter depth Number of Teeth Enters...

Page 13: ...een 1 and 26 will display the corresponding letter of the alphabet i e 5g8 displays the letter E While in Alpha mode presses of 8 or toggle forward through the alphabet while presses of toggle backwar...

Page 14: ...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 Fra...

Page 15: ...ional 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 DI...

Page 16: ...to the default values see Appendix for more information KEYSTROKE DISPLAY gSS Prefs Functional Result Rounding F RND 0 0000 F RND 0 000 F RND FLOAT repeats options F RND 0 0000 Third press of S Defaul...

Page 17: ...the 7 key so you have to use the g key then 7 to enter or calculate dimensions using Feet Below are some examples Enter 2 Feet then label as square and cubic units DIMENSIONS KEYSTROKE DISPLAY 2 Feet...

Page 18: ...ches to other dimensions including metric KEYSTROKE DISPLAY 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 valu...

Page 19: ...7 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 KEYSTROKE DISPLAY OO 0 8i1 8 8 1 8 INCH gi 8 125 INCH...

Page 20: ...MM g9 m 0 5574182 SQ M g5 cm 5574 1824 SQ CM Convert 0 05 cubic meters to other dimensions KEYSTROKE DISPLAY 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...

Page 21: ...ds tons kilograms and metric tons g4 lbs 933 92229 LBS g6 tons 0 4669611 TON g1 kg 423 62003 KG g3 met tons 0 42362 MTON 4 Change the weight per volume back to the default value 490S00 wt vol 490 LBS...

Page 22: ...KEYSTROKE DISPLAY 2g77i 10 25 FEET 10 INCH Dividing Dimensions Divide 30 Feet 4 Inches by 7 Inches KEYSTROKE DISPLAY 30g74i 7i 52 Divide 20 Feet 3 Inches by 9 KEYSTROKE DISPLAY 20g73i 9 2 FEET 3 INCH...

Page 23: ...ory functions FUNCTION KEYSTROKE Add to Memory M Subtract from Memory gM Recall total in Memory rM Display Clear Memory rr Clear Memory gr Memory is semi permanent clearing only when you do one of the...

Page 24: ...noncumulative values The following example shows the use of M1 S1 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 thes...

Page 25: ...n 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 To exit this mode press to exit...

Page 26: ...TTL 21 25 INCH 21 25 INCH 3i1 2 24 75 INCH USING THE MACHINIST CALC PRO IMPORTANT All examples are based on the default U S units mode displaying entries and calculations in U S units Also note that...

Page 27: ...meter and Cutting Speed RPM Milling Calculate the Spindle Speed RPM when milling with a 375 bit at a Cutting Speed of 300 sfm surface feet per minute RPM Diameter 375 KEYSTROKE DISPLAY OO 0 1 Enter th...

Page 28: ...eated presses of R will toggle through the inputs and outputs starting with the entered Cutting Speed RPM Drilling Calculate what the RPM Spindle Speed should be set to when drilling into material wit...

Page 29: ...d Rate if you are turning a 1 steel round stock down with a Cutting Feed of 0 031 Inches per revolution and a rotational speed of 900 RPM Spindle Speed KEYSTROKE DISPLAY OO 0 1 Enter the Cutting Feed...

Page 30: ...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 0 005 Inch turning at 1 000 RPM Spindle Speed R...

Page 31: ...e surface relative to the edge of the cutting tool during a cut typically measured in surface feet per minute You can calculate Cutting Speed by entering the Diameter of the tool or material you re us...

Page 32: ...indle Speed KEYSTROKE DISPLAY OO 0 1 Enter the Diameter of the rod 4d DIA 4 INCH 2 Enter the RPM 300R RPM 300 3 Calculate the Cutting Speed C CUT 314 FEET MIN Repeated presses of C will toggle through...

Page 33: ...lations in metric units you can easily set your calculator to Metric Mode prior to entering values Calculate the Cutting Speed when using a 1 drill at 750 RPM Spindle Speed KEYSTROKE DISPLAY OO 0 1 Se...

Page 34: ...er of Teeth and Cutting Feed If the Cutting Feed is not known the Feed per Tooth can be calculated given values for Number of Teeth Feed Rate and RPM Spindle Speed Feed per Tooth Based on Cutting Feed...

Page 35: ...0 INCH Repeated presses of F will toggle through the inputs and outputs starting with the entered Number of Teeth Radial Chip Thinning In a Milling operation when the depth of a cut is less than half...

Page 36: ...advances during one revolution of the spindle typically measured in inches per revolution IPR You can calculate Cutting Feed given values for Feed per Tooth Chip Load and Number of Teeth If these val...

Page 37: ...ED 15 INCH MIN 2 Enter the Spindle Speed RPM 800R RPM 800 3 Calculate the Cutting Feed c CUT 0 0188 INCH REV Repeated presses of c will toggle through the inputs and outputs starting with the entered...

Page 38: ...able sizes D 2_75 MM DRILL SIZE 0 1083 INCH D 7 64 DRILL SIZE 0 1094 INCH D 35 DRILL SIZE 0 1100 INCH Repeated presses of D display the next larger Drill Sizes The and keys will toggle forward and bac...

Page 39: ...DRILL SIZE 0 2570 INCH 5 Enter order of letter G and enter Alpha Mode 7g8 Alpha ALPHA G 6 Enter as Drill Size D G DRILL SIZE 0 2610 INCH Repeated presses of D display the next larger Drill Sizes The...

Page 40: ...RILL SIZE 1 2969 INCH D 33_00 MM DRILL SIZE 1 2992 INCH 9 32 DRILL SIZE 1 2813 INCH Note that even though the Drill Size is shown on the upper left of the display without the whole Inch value e g 19 6...

Page 41: ...th 118gD Drill Point DEPTH DRILL 0 1502 INCH D ANGLE DRILL 118 D 1 2 DRILL SIZE 0 5000 INCH 3 Enter 127 angle and calculate the Drill Point cut length 127gD Drill Point DEPTH DRILL 0 1246 INCH THREAD...

Page 42: ...n or equal to 10 Note Entries outside of the ranges mentioned above will result in an Entry Error The following tables list the available Thread characteristics provided by the Thread Size function No...

Page 43: ...s Internal 1B 2B 3B External 1A 2A 3A Entering a Metric Thread will allow you to choose among Metric Thread Tolerance Classes as shown below Thread Type Metric Thread Tolerance Classes Internal 3G 3H...

Page 44: ...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 Intern...

Page 45: ...ss with a Grade of 3 for a Metric Thread Size the Metric Thread Size must be stored prior to accessing the Thread Classification function Numeric Thread Size Enter a 8 32 screw and toggle through the...

Page 46: ...ternal Minor Diameter MINR SIZE 0 1300 INCH t Max Internal Minor Diameter MINR SIZE 0 1390 INCH t Min Internal Major Diameter MAJR SIZE 0 1640 INCH 5 Switch to Thread Class 2A and find the available E...

Page 47: ...TAP DRILL SIZE 5 9 MM t Close Fit Drill Size CLOSE DRILL SIZE F t Free Fit Drill Size FREE DRILL SIZE H t Min Internal Pitch Diameter PTCH SIZE 0 2268 INCH t Max Internal Pitch Diameter PTCH SIZE 0 2...

Page 48: ...change the class press b again KEYSTROKE DISPLAY g ALL CLEAREd 1 Set Tolerance Class to Internal 4H 4gb Thread Class INT MM 4H 2 Enter the Thread Size 5mt SIZE 5 MM 3 Enter the Thread Pitch and store...

Page 49: ...Diameter MAJR SIZE 4 8880 MM t Max External Minor Diameter MINR SIZE 4 1660 MM Custom Thread Percentage The Machinist Calc Pro uses a default Thread Grip Percentage of 75 when calculating Tap Drill si...

Page 50: ...s and 3 Wire Measurements Wire Size If you know your Thread Size you can find the Ideal Maximum and Minimum Wire Sizes you can use for that size Screw Thread Find the Ideal Maximum and Minimum Wire Si...

Page 51: ...ads Find the Minimum and Maximum allowable 3 Wire Measurements and Pitch Diameters for a 3 8 16 Class 2A External screw using 0 040 wire KEYSTROKE DISPLAY OO 0 1 Enter the Thread Size 3 8t SIZE 3 8 IN...

Page 52: ...nt Find the Pitch Diameter of a 3 8 16 Class 2A External screw with a 3 Wire Measurement of 0 3975 Inch obtained using a 0 040 wire KEYSTROKE DISPLAY OO 0 1 Enter the Thread Size 3 8t SIZE 3 8 INCH 2...

Page 53: ...d 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 center to center spacing i e on center dista...

Page 54: ...DIA 3 5 INCH 5 Enter the Number of Bolts 3b BOLTS 3 6 Calculate Center to Center Spacing and the x and y coordinates b Center to Center Spacing OC OC 3 0311 INCH b X 01 11 6445 INCH b Y 01 15 5985 IN...

Page 55: ...posite 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 Opposite Leg 4 Hypotenuse A B Adjacent Leg 3 KEYSTROK...

Page 56: ...ih HYP 12 INCH 2 Enter the known Angle 35 34n ANGLE 35 34 3 Solve for the Adjacent Angle n ADJ 54 6600 4 Solve for the Adjacent Leg a ADJ 9 7888 INCH 5 Solve for the Opposite Leg p OPP 6 9411271 INCH...

Page 57: ...econds Convert 23 42 39 to decimal degrees KEYSTROKE DISPLAY OO 0 23 42 39 DMS 23 42 39 g dms deg 23 710833 Convert 44 29 to degrees minutes seconds format KEYSTROKE DISPLAY OO 0 44 29g dms deg DMS 44...

Page 58: ...st basic trigonometric formulas for your reference Given side A and angle a find Side C A a gF Cos e g 3i 53 13gF Cos Side B A a gc Tan Angle b 90 a Given side A and angle b find Side B A b gc Tan Sid...

Page 59: ...tings STORED VALUES DEFAULT VALUE Number of Teeth 1 Drill Point Angle 118 Weight per Volume 490 pounds per cubic foot Thread 75 Thread Classification US Threads Internal 2B Metric Threads Internal 6H...

Page 60: ...he 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 C key will also per form...

Page 61: ...less values stored within the Machinist functions are automatically assigned the corresponding default Metric units of the selected function 4 Area Answer Format Standard if units entered are the same...

Page 62: ...hes Cubic Feet Cubic Meters volume answers always displayed in Cubic Meters regardless of unit entry e g Feet x Feet x Feet Cubic Meters Cubic Inches volume answers always displayed in Cubic Inches re...

Page 63: ...reset Accuracy Errors Accuracy Display Capacity Your calculator has a twelve digit display made up of eight digits normal display and four fractional digits You may enter or calculate values up to 99...

Page 64: ...alc Pro uses two LR 44 batteries Should your calculator display become very dim or erratic replace the batteries Note Please use caution when disposing of your old batteries as they contain hazardous...

Page 65: ...our 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 If you believe you need to return your product pleas...

Page 66: ...ACKING OF THE LCD WHICH ARE PRESUMED TO BE DAMAGES RESULTING FROM MISUSE OR ABUSE To obtain warranty service in the U S please go to the website A repaired or replacement product assumes the remaining...

Page 67: ...ANY DEFECT IN THE PRODUCT OR ITS DOCUMENTATION The warranty disclaimer and remedies set forth above are exclusive and replace all others oral or written expressed or implied No CI dealer agent or empl...

Page 68: ...lated Industries Inc 2011 ALL RIGHTS RESERVED Designed in the U S A Looking for New Ideas Calculated Industries a leading manufacturer of special function calculators and digital measuring instruments...

Page 69: ...4840 Hytech Drive Carson City NV 89706 U S A 1 800 854 8075 Fax 1 775 885 4949 E mail info calculated com www calculated com...

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