HEIDENHAIN CNC Pilot 4290 - Manual (Page 285)

HEIDENHAIN CNC PILOT 4290 273
6.10 User Aids
6.10.1 Calculator
You can use an online pocket calculator for example for standard
calculations, calculation of fit tolerances, and calculation of the core
hole diameter (for inside diameters).
To calculate:
Position the cursor on the input field of the dialog box
Call the pocket calculator – the value of the input box is
loaded.
Perform the calculation.
■ ”OK” – deactivates the pocket calculator and accepts the value
■ ”Delete” - deactivates the calculator and rejects the value
Displays:
■ Display value (below ”=”)
■ saved value (right of ”=”)
■ Operation and intermediate result (to the right of the display
value)
Operation:
■ Select and activate the function/box by cursor key or mouse.
■ The arithmetical functions (SIN, squares, etc.) refer to the value
displayed.
Calculator functions
= Perform calculation; display result
+, –, *, / Basic types of calculation
SIN, COS, TAN
Trigonometric functions
ASIN, ACOS, ATAN
Trigonometric inverted functions
X 2 Square
¹ Square root
STO Store value displayed
STO+, STO– Add/subtract value displayed to memory contents
RCL Recall memory contents to the display
CLR Clear the display
1/x Calculate the reciprocal of the value displayed
π Ratio of circle circumference to diameter (3.14159)
n% Percent calculation
6.1
0 Oper
ating
Aids
Calculator functions
Fit Calculate the mean tolerance for fits
Enter nominal diameter
Press ”fit”
Enter the fit data (”fit” dialog box) –
press ”OK”
The calculator displays the mean
tolerance value.
To calculate a core hole diameter from thread data,
use the ”Internal thread” button.
Press ”inside thread”
Enter the thread data (”inside
thread” dialog box) – press ”OK”
The calculator calculates the core
hole diameter and accepts it as display
value.