36 —
M
achinist
c
alc™
P
ro
(cont’d)
3. Calculate the Cutting Feed:
c
CUT 0.0200
INCH/ReV
c
fPT
$
0.005
INCH
c
TeeTH
$
4.
Cutting feed –
based on Feed rate and rpM
Calculate a Cutting Feed using a 15" Feed Rate and a Spindle
Speed of 800 RPM:
KeySTROKe
DISPLAy
O O
0.
1. Enter the Feed Rate:
1 5 f
feeD
$
15.
INCH/MIN
2. Enter the Spindle Speed (RPM):
8 0 0 R
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 Feed Rate.
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 (maximum of 3-1/2 Inches)
▪ Millimeter value (maximum of 78 mm).
KeySTROKe
DISPLAy