2. REVERSE
ENGINEERING
A HUB
PATRICK BUTLER
ZACH RILETT

3. WHAT’S THE PLAN, STAN?
1. Measurements
2. CMM
3. 3D model
4. Report
5.

4. TOOLS
 Digital caliper
 Height Gage (Dial)
 Radius Gage
 Go-No-Go Gage
 CMM

5. MEASUREMENTS
 250 Measurements
 A-AO
 Hole Locations
 Data Tables
)
rage
re 5 Ave
ensions (in
Hub #1 Dim
re 4 Me asu
1.0067
re 3 Me asu
1.0070
re 2 Me asu
X
1.0075
re 1 Me asu
X
1.0095
ion Me asu
X
1.0065
X
Dimens
X
1.0030
X
A
X
X
1.3649
X
X
1.3655
B
X
1.3660
1.3557
X
1.3610
1.3560
C
670
550
1.3
1.3
1.2569
1.3650
1.3580
1.2580
D
1.3575
1.2575
1.3543
1.3250
1.2600
1.3575
E
1.2575
1.3570
1.2717
1.2515
1.3545
1.2760
F
1.3515
1.2685
0.1887
1.3510
1.2695
0.1900
G
920
1.2715
0.1
1.3768
1.2730
0.1905
1.3805
H
0.1805
1.3735
1.7003
0.1905
1.3755
1.6820
I
1.3750
1.7100
1.0008
795
085
1.3
1.7
0.9915
J
1.7015
1.0085
0.4632
1.6995
0.9910
0.4585
K
555
1.0065
0.4
0.2009
1.0065
0.4685
0.2020
L
0.4660
0.2050
1.4927
0.4675
0.1995
1.4725
M
0.2070
1.4725
2.3780
910
670
0.1
1.4
2.3770
N
1.5755
2.3770
2.1168
1.4760
2.3770
2.1185
O
175
2.3788
2.1
0.1289
2.3800
2.1195
0.1290
P
2.1140
0.1290
0.2688
2.1145
0.1280
0.2705
Q
0.1285
0.2685
0.0902
300
735
0.1
0.2
0.0880
R
0.2715
0.0910
0.2437
0.2600
0.0900
0.2420
S
385
0.0930
0.2
0.2608
0.0890
0.2500
0.2585
T
0.2450
0.2615
1.4784
0.2430
0.2610
1.4770
0.2640
U (above )
1.4770
1.0120
590
805
0.2
1.4
1.0115
1.4805
U (be low)
1.0120
2.4343
1.4770
1.0130
2.4285
V
1.0130
2.4300
2.7296
1.0105
2.4320
2.7320
W
2.4385
2.7320
3.7324
2.4425
2.7345
3.7335
X
2.7245
X
3.7320
310
2.7250
X
3.7
Y
X
3.7320
X
X
3.7335
X
Z
X
X
1.5863
X
X
1.5885
AA
X
1.5830
1.5531
X
1.5860
1.5400
AB
1.5880
1.5475
0.2239
1.5860
1.5625
0.2235
AC
1.5690
0.2245
2.6758
1.5465
0.2255
2.6720
AD
0.2240
2.6750
0.0323
0.2220
2.6755
0.0315
AE
775
2.6
0.0310
1.5411
2.6790
0.0325
1.5440
AF
0.0335
1.5390
2.7338
410
0.0330
380
1.5
2.7
AG
1.5405
2.7500
1.6666
1.5410
2.7380
1.6635
AH
2.7295
1.6675
0.1381
2.7285
1.6660
0.1330
AI
715
1.6
0.1350
1.8880
1.6645
0.1330
1.8825
AJ
0.1490
1.8880
2.0679
0.1405
740
1.8975
2.0
AK
1.8799
2.0565
3.9990
1.8835
2.0715
4.0020
AL
2.0650
4.0000
0.3125
2.0725
3.9970
0.3125
AM
010
4.0
0.3125
3.9950
0.3125
AN
0.3125
0.3125
AO
Screw Holes (in)
Dimensions for Location of
e 2 Average Measure 3
Dimension Measure 1 Measur
X
0.3713
0.3705
0.3720
1
0.3760
0.3540
0.3530
0.3550
2
0.3705
0.3073
0.3015
0.3130
3
0.3905
0.3663
0.3610
0.3715
4
0.2945
0.2748
0.2740
0.2755
5
0.3340
0.3183
0.3200
0.3165
6
0.4675
0.4575
0.4650
0.4500
7
X
0.3623
0.3615
0.3630
8
0.3240
0.3195
0.3200
0.3190
9
0.4040
0.3843
0.3840
0.3845
10
X
0.3595
0.3585
0.3605
11
0.3740
0.3555
0.3575
0.3535
12
0.4170
0.3938
0.3940
0.3935
13
X
0.3715
0.3715
0.3720
14
0.3675
0.3493
0.3475
0.3510
15
0.3145
0.3083
0.3090
0.3075
16
CMM Ve rif
ie d Measu
Di mensio
re ments
n Aver
(in)
age
CMM
A
Di ffe re nc
1.0067
e
1.0116
B
0.0049
X
0.2890
C
X
X
0.8456
D
1.3649
X
E
X
1.3557
X
1.3675
F
1.2569
0.0118
1.2630
G
1.3543
0.0061
1.3610
H
1.2717
0.0067
1.2759
I
0.1887
0.0042
J
X
1.3768
X
1.3816
K
1.7003
0.0048
1.7113
L
1.0008
0.0110
M
X
0.4632
X
N
X
0.2009
X
0.1964
O
1.4927
0.0045
P
X
2.3780
X
2.3792
Q
2.1168
0.0012
2.1047
R
0.1289
0.0121
S
X
0.2688
X
T
X
0.0902
X
U (above
X
)
0.2437
X
U (bel ow
0.2503
)
0.2608
0.0066
0.2659
V
1.4784
0.0051
1.4805
W
1.0120
0.0021
1.0139
X
2.4343
0.0019
2.4410
Y
2.7296
0.0067
2.7218
Z
3.7324
0.0078
AA
3.7328
0.0004
X
0.9333
AB
X
X
AC
X
1.5863
X
AD
1.5850
1.5531
0.0013
1.5685
AE
0.2239
0.0154
0.2175
AF
2.6758
0.0064
AG
2.6780
0.0323
0.0022
AH
X
1.5411
X
AI
X
2.7338
X
AJ
x
1.6666
X
1.6624
AK
0.1381
0.0042
AL
X
1.8880
X
AM
X
2.0679
X
AN
X
3.9990
X
AO
4.0027
0.3125
0.0037
0.3125
AP
0.0000
X
1.3716
X

6. DIMENSION LOCATIONS

7. CMM
 PCS
 27 validated
 Method

8. 3D MODEL
 SolidWorks
 Method

9. ENGINEERING DRAWING

10. WHAT WE’VE LEARNED
 GD&T
 Teamwork
 Real-life Scenario

12. IMAGES
http://jefflynchdev.files.wordpress.com/2010/02/cmm_closeu
p_01_large.jpg
http://imavl.com/Portals/0/images/new_images/3Services/Engineering%20Systems%20Design/engineering_ru
lerandpencil.jpg