Kit Requirements

- Get all the components

* Aluminum [6061-T6 has good mechanical properties]

http://www.onlinemetals.com/ [An amazing place for metal and so close to Fremont]

note: You can either buy a square tube (a) or make your own (b). Of course with the square tube you are limited by the sizes available in store, which need to fit with the actual size of the motor mounting board. Also, I highly suggest option (b) to get more practice on the mills. So in this tutorial, I will discuss option (b). Remember, when you order, it is cheaper to buy regular length 12", 24", 36" rather then make a special length cut. Also, I always buy a little bit more than what is needed, so I can face all my parts later on.

(a) 1 x Aluminum 6063-T52 Square Tube, 0.25" x 3” Random Length 10"-12" ($19.96) (gearbox casings)
1 x Aluminum 6061-T6 Bare Rectangle 0.125" x 4" Cut to 13" ($5.20) (gearbox casings)
1 x Aluminum 6061-T6 Bare Rectangle, 0.5" x 1.25" Cut to 4" ($1.92) (bearing mount and coupling)
1 x Aluminum 6061-T6 Bare Rectangle, 0.25" x 1.50" Cut to 12" ($1.88) (mounting arm plates and small arms)

(b) 1 x Aluminum 6061-T6 Bare Rectangle 0.25" x 2.5" Cut to 24" ($6.00) (gearbox casings)
1 x Aluminum 6061-T6 Bare Rectangle 0.125" x 2.5" Cut to 12" ($2.01) (gearbox casings)
1 x Aluminum 6061-T6 Bare Rectangle, 0.25" x 1.50" Cut to 12" ($1.88) (mounting plate and small arms)
1 x Aluminum 6061-T6 Bare Rectangle, 0.5" x 1.25" Cut to 4" ($1.92) (bearing mount and coupling)

* Worm drive [worm mesh with a worm gear]

https://sdp-si.com/eStore/

note: Cheaper worm drives can be found but the quality will vary. Just make sure that your worm gear and mesh are compatible together. For this project, we will use a worm drive with 64DP/ 2 leads /0.5PD

+info on gear: http://www.howstuffworks.com/gear5.htm

2 x Worm gear, #S1D96Z-P064SD, ($17.78) (Available at Fremont Lab)
2 x Worm mesh, part # S1C86Z-P064B040D, ($15.89) (Available at Fremont Lab)

* Screws and Tap & Drill bits

http://www.tacomascrew.com/

20 x machine screws 4-40 1/2" countersunk head
16 x machine screws 4-40 1/4" countersunk head

12 x machine screws 10-32 3/8" countersunk head (bearing mount, coupling, motor)

2 x setscrews 10-32 1/2" (coupling)

4 x setscrews 6-32 1/2" (mount arm)
2 x setscrews 10-32 1/4" (small arms)
1 x tap bit 4-40 and drill bit #43
1 x tap bit 6-32 and drill bit #36
1 x tap bit 10-32 and drill bit #21 and 1 x 1/4" x 82 countersink bit

* Mini ball bearings and shaft

https://sdp-si.com/eStore/ (bearings), http://www.grainger.com (shaft)

note: You can definitely buy some very cheap plastic bearings and aluminum rods if you are planning to use this device for some lightweight object. Look under skateboards or toy bearings. The parts below are high quality and quite pricey, but they will last forever! You can also make your own bushings on the lathe in a self-lubricating plastic.

1 x Shaft, #2CNZ9, 0.25" Diameter x 12", ($10.50) (Available at Fremont Lab)
2 x Mini Ball Flanged Bearings, #1ZEL1, 0.25" Bore, ($6.68) (Available at Fremont Lab)
2 x Mini Ball Flanged Bearings, #1ZEX4, 0.25" Bore, ($9.67) (Available at Fremont Lab)
3 x Thrust Ball Bearings, #A7Z 7025, 0.25" Bore, ($2.94) (Available at Fremont Lab)

* Detect Switches

http://www.radioshack.com/product/index.jsp?productId=3190382

note: These are very cool little switches- perfect to detect a position. Check them out!

2 x Detect switches, #275-008 ($1.99)

* Stepper Motors and Microcontrollers

http://www.interinar.com/tl57st56-02b2.html

note: You can use smaller or larger motors related to the final application of your device. How smooth do you want your movement to be and how much weight should it hold? Personally, I suggest the 24VDC Anaheim stepper motors for heavier cameras but for this demo I will use what is available at the Fremont Lab. You will also need stepper motor drivers and a power supply. There are many options for the driver, such as the EasyDriver Stepper Motor Driver from Sparkfun or for more robust purposes the G02 Drive from GeckoDrive (much more expensive too!!). For more information on this topic - check out Step 08.

2 x Stepper Motors, TL57ST56-02b2, 12Vdc, 1.2Amp (Available at Fremont Lab)
1 x Arduino Microcontroller and 2x Sparkfun EasyDrivers (Available at Fremont Lab)

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note: This project can be built at the Fremont Dxarts Lab on a budget of under $20. You mainly need to buy your own aluminum, screws, and switches. All other parts are available at Fremont Lab for testing only and will need to stay in the lab. After testing and experimenting with them, if you plan to use this device for your own project, you should order your own parts. All right, let's start!

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