Calculated Industries 4087 User Manual - — 29

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 — 29

2. Enter the RPM:

8 0 0 R

RPM 

$

 800.

3. Calculate the Feed Rate:

f

*

feeD  3.2000 

INCH/MIN

* Repeated presses of 

f

 will toggle through the inputs and outputs, 

starting with the entered RPM (Spindle Speed).

feed Rate – based on Feed per Tooth, rpM and # of Teeth

Calculate the Feed Rate for a four-fluted end mill using a Feed 

per Tooth (Chip Load) of 0.005 Inch turning at 1,000 RPM 

(Spindle Speed): 

RPM: 1000

Feed

Rate

Feed per Tooth:

0.005″

Number 

of Teeth: 4

KeySTROKe

DISPLAy

O O

0.

1. Enter the Feed per Tooth:

5 B F

fPT 

$

 0.005 

INCH

2. Enter the Number of Teeth:

4 #

TeeTH 

$

 4.

KeySTROKe

DISPLAy

(cont’d)