30 — Ma c h i n i s t ca l c ™ Pr o
(cont’d)
c
TEETH
$
4.
Cutting Feed – Based on Feed Rate and RPM
Calculate a Cutting Feed using a 375 millimeter Feed Rate
and a Spindle Speed of 800 RPM:
KEYSTROKE DISPLAY
OO
0.
1. Enter the Feed Rate:
375f
FEED
$
375. MM/MIN
2. Enter the Spindle Speed (RPM):
800R
RPM
$
800.
3. Calculate the Cutting Feed:
c
* CUT 0.4688 MM/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 metric Drill Size,
which can be entered as a millimeter value (maximum of 78 mm).
If the entered value doesn’t match a Drill Size, the next smaller
size is displayed. To set the displayed Drill Size, press
O
(or any
other key).
Note: You can toggle through the available sizes in increasing order with
either the
D
key or the
+
key. The
-
key displays the available sizes in
decreasing order. U.S. drill sizes will be displayed as well, as they are also
included within the Drill Size table.
Enter a 3.7 mm hole size and toggle through the available sizes
to view the next larger and next smaller sizes:
KEYSTROKE DISPLAY
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