Parts Selection
Handbooks and Reference
COTS Parts Sourcing
Green Materials
Electronics
Chips and PCB Design
MAE 156A
Handbooks and Reference Handbooks are helpful at understanding the language used to describe a part, fixture, or component.
Many reference guides and handbooks have already been cited in lecture: Shigley, J.E., Mischke, C.R., and Brown, T.H. (eds), Standard Handbook of Machine Design, McGraw-Hill, 2004. http://roger.ucsd.edu:80/record=b6343736~S9
Lingaiah, K., Machine Design Databook, McGraw-Hill, 2003. http://roger.ucsd.edu:80/record=b6677148~S9
Rothbart, H.A., Mechanical Design Handbook, McGraw-Hill, 2006. http://roger.ucsd.edu:80/record=b6679220~S9
Bishop, R.H., The Mechatronics Handbook, CRC Press 2008. http://roger.ucsd.edu:80/record=b6601065~S9
Geng, H. (ed), Manufacturing Engineering Handbook, McGraw-Hill, 2004. http://roger.ucsd.edu:80/record=b6678812~S9
MAE 156A
2
Commercial Off-The-Shelf Commercial Off-The-Shelf (COTS) items are pre-assembled components that perform common functions. Advantage : Let the specialist be a specialist. Disadvantage: Reliance on a specific vendor.
Texas Instruments INA2321 Instrumentation Amplifier
MAE 156A
3
COTS Parts Sourcing The “Thomas Register of American Manufacturers” served as the go-to guide for COTS part sourcing from the early 1900's until 2006. Print copies of the Thomas' Register ceased in 2006. Online version is now found at: http://www.thomasnet.com
MAE 156A
4
Small Parts, Small Quantities McMaster-Carr http://mcmaster.com
Small Parts Inc. http://smallparts.com
Grainger Industrial Supply http://www.grainger.com
Marshall's Industrial Hardware http://www.marshallshardware.com 8423 Production Ave., San Diego CA, 92121
MAE 156A
5
Materials Sourcing MatWeb provides a serachable database of materials and manufacturers. http://www.matweb.com
MAE 156A
6
Green Materials The eco-indicator is an attempt to quantify the environmental impact of a material. The eco-indicator can therefore be useful for initial screening of candidate materials.
Material
Energy (MJ/kg)
Eco-Indicator (points/kg)
Aluminum Carbon Steel Stainless Steel Titanium
230 to 300 50 to 60 100 to 120 500 to 550
10 to 18 4 16 to 18 80 to 100
Nylon Polyethylene
170 to 180 80 to 120
12 to 14 3
Glass Cement/Concrete
10 to 25 4 to 8
2 1
Wood Glass-Fiber Polymer
2 to 4 90 to 100
1 12
Kutz, M. (ed), Environmentally Conscious Mechanical Design, Wiley, 2007.
MAE 156A
7
Arduino Development Boards Arduino development boards are useful for rapid prototyping.
Arduino UNO
Arduino Mini
Arduino Mega
All images from Sparkfun Electronics http://www.sparkfun.com MAE 156A
8
More Development Boards Development boards are available from many chip makers and third-party vendors.
Sparkfun Electronics, Inc. http://www.sparkfun.com
Microchip Technology, Inc. http://www.microchip.com
Parallax, Inc. http://www.parallax.com
mbed Microcontrollers http://mbed.org
MAE 156A
9
Chip-Level Parts Microcontrollers and sensors are available as chip-level parts.
Digi-Key Corporation http://www.digikey.com/
Newark http://www.newark.com/
Jameco Electronics http://www.jameco.com/
Mouser Electronics http://mouser.com/
MAE 156A
10
Printed Circuit Boards Single-layer printed circuit boards (PCBs) are surprisingly easy to make.
ExpressPCB Free layout and schematic software (3) 2.5” x 3.8” single-layer boards for $51 + shipping http://www.expresspcb.com
Pad2Pad Free layout software http://www.pad2pad.com
PCBCore, EzPCB, AP Circuits, PCB-Pool, SpeedyPCB and others... Commercial board layout software (Gerber, Eagle) is required.
MAE 156A
11
Further Reading Kutz, M. (ed), Environmentally Conscious Mechanical Design, Wiley, 2007. http://roger.ucsd.edu:80/record=b6684932~S9
MAE 156A
12
