» MIT OpenCourseWare » Mechanical Engineering » Design and Manufacturing I, Spring 2003

Project Kit List

Materials

With the following exceptions, each machine must be constructed solely from materials provided in the kit.

You may use all the gears and bearings that you need, so long as EVERY SINGLE USE has been justified by good design practice and appropriate calculations to verify they will not be overloaded.
You may use additional fasteners and adhesives, but ONLY for fastening and joining (no ballast, caltrops, table sticking devices etc.).
You may use washers as simple bearings and/or parts of a fastening system.
You may use bolts under 1 inch long as posts of pivot joints, but not as structural elements.
You may use lubricants, but only to reduce friction WITHIN your own machine (no oil slicks please).
You may use any materials for non-functional decorations (make your machine look really cool).

Students get to keep their machines intact. We only ask that students recycle unused components after the contest, especially motors!

The following items are not to be used inside the actual machine:

Green FREM boxes and purple lids
Catalogs and flyers

Note: Some items may vary slightly from what is listed on the web page.

IMPORTANT: More information on using the control system is shown on the control systems page. It is very important that you read this page before designing your robot, as it will require some planning. If you are making a robot with a microcontroller, make sure your electronics will work with the table control system.

Note on manufacturing parts: Please note that you must have a drawing before using the large machines (milling machines, lathes, water jet, etc). The shop guys will help you process the parts, but they will not make the parts for you. Drawings are not necessary, but are highly suggested, before processing materials using machines in the general area (belt sanders, drill presses, etc).

Quantity	Description
ACTUATORS
2 (from staff with justification)	1 1/8" diameter DC solenoid
4	Tamiya Motors
ELECTRICAL Can be obtained from course staff when appropriate stage of design and fabrication has been reached.
4	1/4" electrical spade connectors
4	1/8" electrical spade connectors
1	AMP Connector Reverse-Sex 14-position connector
10	Wires for AMP connector
POWER SUPPLY ELEMENTS
students responsible for providing own	AA batteries
1	AA battery holders
STRUCTURAL ELEMENTS
Wood:
2	16" x 16" x 3/8" birch plywood
Aluminum:
1	¼” x 2" x 12" bar, 6061-T6 (PDF)
2	18" x 18" x 1/16" sheet, 5052-H32 (PDF)
up to 24" total length	3/8" diameter x 12" rod, 6061-T6 (PDF)
1	1" x 3" x 12" x 1/8"box extrusion, 6061-T6 (PDF)
up to 36" total length	¼” x 18" rod, 6061-T6 (PDF)
2	1" x 1" x 18" x 1/16"" th. box extrusion 6061-T6 (PDF)
2	1" x 1" x 18" x 1/8 " th. box extrusion, 6061-T6 (PDF)
1	1.5" x 1.5" x 1/4" x 12" angle, 6061-T6
1	5" x 5" x 0.5" thick plate, 6061-T6
Steel: Note : the piano hinges will not be handed out in kit but rather can be obtained in lab as needed
up to 24" total length	½” DIA rod - various lengths up to 12", mild steel
up to 36" total length	¼” DIA rod - various lengths, 1018 CD steel (PDF)
1	¼” DIA x 12" mild steel HEX rod
1	12" long piano hinge (PDF)
up to 24" total length - available in lab as needed	¼” - 20 thread x 12" long plain steel threaded rod
up to 24" total length - available as needed in lab	1" x 0.048" th. strip steel
up to 30, available in lab	1/8" diameter x 36" welding rod, STRUCTURAL AND FASTENER USE ONLY, NOT FOR UPPING MACHINE WEIGHT (PDF)
Plastic:
4	5.5" diameter x 1" molded plastic wheels (PDF)
2	3" diameter x 13/16" hard plastic wheels
2	12" x 12" x 1/4" ABS Sheet (PDF)
1	1" diameter x 6" Delrin rod (PDF)
1	2" diameter x 4" Delrin rod (PDF)
2	Square HPDE 1/2"x1/2" x6" rod (PDF)
1	1" x 24" PVC pipe (PDF)
1	1.25" x 24" PVC pipe (PDF)
Rubber: Note : rubber items will not be handed out in kit but rather can be obtained in lab as needed.
up to 24" total length	Buna-N 1/16" sheet stock, 6" wide (PDF)
available as needed - no limit provided that use is justified with appropriate analysis and drawings	Buna-N cord stock, 1/8" diameter (PDF)
available as needed - no limit provided that use is justified with appropriate analysis and drawings	Rubber stoppers (PDF)
available as needed - no limit provided that use is justified with appropriate analysis and drawings	Small rubber bands (PDF)
available as needed - no limit provided that use is justified with appropriate analysis and drawings	Medium rubber bands (PDF)
available as needed - no limit provided that use is justified with appropriate analysis and drawings	Large rubber bands (PDF)
Springs: Note : springs will not be handed out in kit but rather can be obtained in lab as needed.
4 max. - available as needed provided use justified with appropriate analysis and drawings	Compression springs (PDF)
4 max. - available as needed provided use justified with appropriate analysis and drawings	Extension springs, small (black) (PDF)
4 max. - available as needed provided use justified with appropriate analysis and drawings	Extension springs, medium (PDF)
4 max. - available as needed provided use justified with appropriate analysis and drawings	Extension springs, large (PDF)
4 max. - available as needed provided use justified with appropriate analysis and drawings	Torsion springs (larger one that fit over 1/4" shaft) (PDF)
4 max. - available as needed provided use justified with appropriate analysis and drawings	Torsion springs (small) (PDF)
4	Constant force springs (PDF)
Gears: Note : gears will not be handed out in kit but rather can be obtained in lab as needed.
1	molded nylon, 24 Diametral Pitch, 12" length, ¼" face, ¼" height (PDF)
limited quantity - available on first come first served basis with appropriate analysis and drawings	Black plastic gears, 24 Diametral Pitch, 48T (PDF)
limited quantity - available on first come first served basis with appropriate analysis and drawings	Black plastic gears, 24 Diametral Pitch, 24T (PDF)
limited quantity - available on first come first served basis with appropriate analysis and drawings	White Gear, 24 Diametral Pitch, 42T (PDF)
limited quantity - available on first come first served basis with appropriate analysis and drawings	White Gear, 24 Diametral Pitch, 25T (PDF)
limited quantity - available on first come first served basis with appropriate analysis and drawings	White Gear, 24 Diametral Pitch, 12T (PDF)
available as needed - no limit provided that use is justified with appropriate analysis and drawings	DELRIN gear, 24 Diametral Pitch, 16T (PDF)
available as needed - no limit provided that use is justified with appropriate analysis and drawings	DELRIN gear, 24 Diametral Pitch, 24T (PDF)
available as needed - no limit provided that use is justified with appropriate analysis and drawings	DELRIN gear, 24 Diametral Pitch, 32T (PDF)
available for use exclusively with right angle gearbox	nylon bevel gear, 24 Diametral Pitch, 24T
available for use exclusively with right angle gearbox	nylon bevel gear, 24 Diametral Pitch, 48T
Fasteners and adhesives: Note : fasteners and adhesives will not be handed out in kit but rather can be obtained in lab as needed.
available as needed in lab	Nylon washers 1/4" I.D. (PDF)
available as needed in lab	Flanged Nyliner bearings, 1/4" bore (PDF)
available as needed in lab	An Assortment of Adhesives (PDF)
available as needed in lab	3M Two Part Epoxy (PDF)
available as needed in lab	E-clips for 0.25" shaft (PDF)
available as needed in lab	Stocked Fasteners (PDF)
available as needed in lab	Hose Clamps
available as needed in lab	Some electrical tape for electrical insulation purposes (PDF)
OTHER STUFF Note : these items will not be handed out in the kit but rather can be obtained in lab as needed.
2	flat ceramic disk magnets
2	Syringe 50 ml
available as needed in lab	25' of your choice of string from 2.007 rolls only (PDF)
4 max.	double shielded ball bearings - specs
Please note: You are responsible for keeping your batteries charged.

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