32 — M
achinist
c
alc™
/ M
achinist
c
alc™
P
ro
Cutting feed –
Based on Feed per Tooth and # of Teeth
Calculate Cutting Feed with a Feed per Tooth (Chip Load) of
0.005 Inch and 4 Teeth:
KeYSTROKe
DISPLAY
O O
0.
1. Enter the Feed per Tooth:
. 0 0 5 F
fPT
0.005
INCH
2. Enter the Number of Teeth:
4 #
TeeTH
4.
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-Inch 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.
(cont'd)