26 — Ma c h i n i s t ca l c ™ Pr o
rC
*
CUT
$
58.904862 M/MIN
* The calculated Cutting Speed is displayed as a rounded, whole
number value.
r
C
displays the stored Cutting Speed value in
decimal oating point format.
Cutting Speed – Turning
Calculate the Cutting Speed when turning a 100 mm rod at 300
RPM (Spindle Speed):
KEYSTROKE DISPLAY
OO
0.
1. Enter the Diameter of the rod:
100d
DIA
$
100. MM
2. Enter the RPM:
300R
RPM
$
300.
3. Calculate the Cutting Speed:
C
* CUT 94. M/MIN
* 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:
10.5d
DIA
$
10.5 MM
2. Enter the RPM:
750R
RPM
$
750.
(cont’d)
KEYSTROKE DISPLAY
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