52 —
M
achinist
c
alc™
P
ro
6. Find the Pitch Diameter:
R
P-DIA
SIZe
0.3316
INCH
R
WIRe
SIZe
$
0.04
INCH
* If no Wire Size is entered, the calculated Ideal Wire Size will be used
to find the Pitch Diameter.
BOlT PaTTErN
With the
Machinist Calc Pro
, you can determine a Bolt Pattern by
entering the Bolt Circle Diameter, the Number of Bolt Holes and
the Angle of the first bolt hole (optional). You can also enter an
optional Center x and y-coordinate of the Bolt Pattern.
In addition to calculating the x and y-coordinates for each bolt
hole, the Bolt Pattern function also calculates the hole center-to-
center spacing (i.e. on-center distance from hole to hole).
Start
Angle
X
C
,Y
C
X
2
,Y
2
X
1
,Y
1
X
3
,Y
3
bolt Pattern
Calculate the Bolt Pattern for a layout with a 3.5" Diameter, a 20°
Start Angle and 3 Bolts. The Center x-coordinate is 10 Inches and
the center y-coordinate is 15 Inches.
Note:
When determining angles, 0° is at the 3 o’clock position and the
rotation goes counterclockwise.
KeySTROKe
DISPLAy
O O
0.
1. Enter the Center x-coordinate:
(cont’d)
KeySTROKe
DISPLAy