reverse engineering a hub
TRANSCRIPT
REVERSE ENGINEERING A HUB
PATRICK BUTLER
ZACH RILETT
WHAT’S THE PLAN, STAN?
1. Measurements
2. CMM
3. 3D model
4. Report
5. PRESENTATION
TOOLS Digital caliper
Height Gage (Dial)
Radius Gage
Go-No-Go Gage
CMM
MEASUREMENTS 250 Measurements
A-AO
Hole Locations
Data Tables
Dimension Measure 1 Measure 2 Measure 3 Measure 4 Measure 5 Average
A 1.0030 1.0065 1.0095 1.0075 1.0070 1.0067
BX
XX
XX
X
CX
XX
XX
X
D 1.3650 1.3670 1.3610 1.3660 1.3655 1.3649
E 1.3250 1.3575 1.3580 1.3550 1.3560 1.3557
F 1.2515 1.2575 1.2600 1.2575 1.2580 1.2569
G 1.3510 1.3515 1.3545 1.3570 1.3575 1.3543
H 1.2730 1.2715 1.2695 1.2685 1.2760 1.2717
I 0.1905 0.1805 0.1905 0.1920 0.1900 0.1887
J 1.3795 1.3750 1.3755 1.3735 1.3805 1.3768
K 1.6995 1.7015 1.7085 1.7100 1.6820 1.7003
L 1.0065 1.0065 0.9910 1.0085 0.9915 1.0008
M 0.4675 0.4660 0.4685 0.4555 0.4585 0.4632
N 0.1910 0.2070 0.1995 0.2050 0.2020 0.2009
O 1.4760 1.5755 1.4670 1.4725 1.4725 1.4927
P 2.3800 2.3788 2.3770 2.3770 2.3770 2.3780
Q 2.1145 2.1140 2.1195 2.1175 2.1185 2.1168
R 0.1300 0.1285 0.1280 0.1290 0.1290 0.1289
S 0.2600 0.2715 0.2735 0.2685 0.2705 0.2688
T 0.0890 0.0930 0.0900 0.0910 0.0880 0.0902
U (above) 0.2430 0.2450 0.2500 0.2385 0.2420 0.2437
U (below) 0.2590 0.2640 0.2610 0.2615 0.2585 0.2608
V 1.4770 1.4805 1.4805 1.4770 1.4770 1.4784
W 1.0105 1.0130 1.0130 1.0120 1.0115 1.0120
X 2.4425 2.4385 2.4320 2.4300 2.4285 2.4343
Y 2.7250 2.7245 2.7345 2.7320 2.7320 2.7296
Z 3.7335 3.7320 3.7310 3.7320 3.7335 3.7324
AA XX
XX
XX
AB XX
XX
XX
AC 1.5860 1.5880 1.5860 1.5830 1.5885 1.5863
AD 1.5465 1.5690 1.5625 1.5475 1.5400 1.5531
AE 0.2220 0.2240 0.2255 0.2245 0.2235 0.2239
AF 2.6790 2.6775 2.6755 2.6750 2.6720 2.6758
AG 0.0330 0.0335 0.0325 0.0310 0.0315 0.0323
AH 1.5410 1.5405 1.5410 1.5390 1.5440 1.5411
AI 2.7285 2.7295 2.7380 2.7500 2.7380 2.7338
AJ 1.6645 1.6715 1.6660 1.6675 1.6635 1.6666
AK 0.1405 0.1490 0.1330 0.1350 0.1330 0.1381
AL 1.8835 1.8799 1.8975 1.8880 1.8825 1.8880
AM 2.0725 2.0650 2.0715 2.0565 2.0740 2.0679
AN 3.9950 4.0010 3.9970 4.0000 4.0020 3.9990
AO 0.3125 0.3125 0.3125 0.3125 0.3125 0.3125
Hub #1 Dimensions (in)Dimension Average CMM Difference
A 1.0067 1.0116 0.0049B
X 0.2890 XC
X 0.8456 XD 1.3649 X
XE 1.3557 1.3675 0.0118F 1.2569 1.2630 0.0061
G 1.3543 1.3610 0.0067H 1.2717 1.2759 0.0042I 0.1887 X
XJ 1.3768 1.3816 0.0048
K 1.7003 1.7113 0.0110L 1.0008 X
XM 0.4632 X
XN 0.2009 0.1964 0.0045O 1.4927 X
XP 2.3780 2.3792 0.0012
Q 2.1168 2.1047 0.0121R 0.1289 X
XS 0.2688 X
XT 0.0902 X
XU (above) 0.2437 0.2503 0.0066U (below) 0.2608 0.2659 0.0051
V 1.4784 1.4805 0.0021W 1.0120 1.0139 0.0019X 2.4343 2.4410 0.0067Y 2.7296 2.7218 0.0078Z 3.7324 3.7328 0.0004
AAX 0.9333 X
ABX
XX
AC 1.5863 1.5850 0.0013AD 1.5531 1.5685 0.0154AE 0.2239 0.2175 0.0064AF 2.6758 2.6780 0.0022
AG 0.0323 XX
AH 1.5411 XX
AI 2.7338 xX
AJ 1.6666 1.6624 0.0042AK 0.1381 X
XAL 1.8880 X
XAM 2.0679 X
XAN 3.9990 4.0027 0.0037AO 0.3125 0.3125 0.0000AP
X 1.3716 X
CMM Verified Measurements (in)
Dimension Measure 1 Measure 2 Average Measure 3
1 0.3720 0.3705 0.3713 X
2 0.3550 0.3530 0.3540 0.3760
3 0.3130 0.3015 0.3073 0.3705
4 0.3715 0.3610 0.3663 0.3905
5 0.2755 0.2740 0.2748 0.2945
6 0.3165 0.3200 0.3183 0.3340
7 0.4500 0.4650 0.4575 0.4675
8 0.3630 0.3615 0.3623 X
9 0.3190 0.3200 0.3195 0.3240
10 0.3845 0.3840 0.3843 0.4040
11 0.3605 0.3585 0.3595 X
12 0.3535 0.3575 0.3555 0.3740
13 0.3935 0.3940 0.3938 0.4170
14 0.3720 0.3715 0.3715 X
15 0.3510 0.3475 0.3493 0.3675
16 0.3075 0.3090 0.3083 0.3145
Dimensions for Location of Screw Holes (in)
DIMENSION LOCATIONS A-AO
CMM PCS
27 validated
Method
3D MODEL SolidWorks
Method
ENGINEERING DRAWING
SolidWorks
Views
GD&T
WHAT WE’VE LEARNED GD&T
Teamwork
Real-life Scenario
IMAGES
http://jefflynchdev.files.wordpress.com/2010/02/cmm_closeup_01_large.jpg
http://imavl.com/Portals/0/images/new_images/3-Services/Engineering%20Systems%20Design/engineering_rulerandpencil.jpg