40 — Ma c h i n i s t ca l c ™ Pr o
(cont’d)
Bolt Pattern
Calculate the Bolt Pattern for a layout with a 90 mm Diameter, a
20° Start Angle and 3 Bolts. The Center x-coordinate is 250 mm
and the center y-coordinate is 380 mm.
Note: When determining angles, 0° is at the 3 o’clock position and the
rotation goes counterclockwise.
KEYSTROKE DISPLAY
OO
0.
1. Enter the Center x-coordinate:
250ma
ADJ
$
250. MM
2. Enter the Center y-coordinate:
380mp
OPP
$
380. MM
3. Enter the Start Angle:
20n
ANGLE
$
20.°
4. Enter Bolt Circle Diameter:
90d
DIA
$
90. MM
5. Enter the Number of Bolts:
3b
BOLTS
$
3.
6. Calculate Center-to-Center Spacing and the
x and y-coordinates:
b
(Center-to-Center Spacing) OC-OC 77.9423 MM
b
X-01 292.2862 MM
b
Y-01 395.3909 MM
b
X-02 215.5280 MM
b
Y-02 408.9254 MM
b
X-03 242.1858 MM
b
Y-03 335.6837 MM
b
DIA
$
90.
MM
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