Calculated Industries 44080 Construction Master Pro Desktop v3.0 User Manual page 72

(Cont'd)
KEYSTROKE
4. Enter irregular pitch and find irregular Hip/Valley rafter length and
cut angles:
8 i Ç H
H
H
H
H
H
5. Display the o.c. and find the irregular jack lengths and cut angles:
Ç j
j
j
j
j
j
j
6. Find the o.c., regular jack lengths and cut angles:
j
j
j
j
j
j
j
7. Reset jack rafter Preference Settings:
o o
Ç ß ß ß ß ß ß
Set Preference to "Descend":
+ (plus sign)
Set Preference to "Jacks On-Center":
ß
+
Exit Preference Settings:
o
*Note: The stored on-center spacing is used as the maximum allowable spacing.
Therefore, it is assigned to the side with the largest entered pitch. In this example, the
"irregular" side pitch is larger than the "regular" side pitch; thus, the irregular side is
calculated using the maximum on-center value (16 inches). If the regular pitch side
had the larger pitch, it would require the larger (16 inches) on-center.
IPCH 8
IH/V 5 9-11/16
FEET
PLMB 23.70°
LEVL 66.30°
CHK1 41.19°
CHK2 48.81°
IJOC 16
IJ1 1 4-13/16
FEET
IJ2 2
FEET
IJ3 4
FEET
PLMB 33.69°
LEVL 56.31°
CHK1 41.19°
JKOC 14
JK1 1
FEET
JK2 3 1-1/16
FEET
JK3 4 7-9/16
FEET
PLMB 30.26°
LEVL 59.74°
CHK1 48.81°
JACK ASCEnd
JACK dESCEnd
IRJK JAC-JAC
IRJK OC-OC
U ' G
SER S
DISPLAY
INCH
INCH
*
INCH
INCH
9-5/8
INCH
2-1/2
INCH
*
INCH
6-1/2
INCH
INCH
INCH
0.
0.
— 71
UIDE