Parts, tools, and supplies

1. Custom Parts

Ponoko
http://www.ponoko.com/

1 Twister Cover- 3 mm yellow acrylic, $5.83 ea. Case/twister_cover.eps Twister Base- 3 mm black acrylic, $7.93 ea. (Design file: Case/twister_base.eps)

Silver Circuits
http://www.custompcb.com/

2 Printed Circuit Board, 0.062” FR4, 1oz HASL Blue Solder Mask, White Silkscreen, $214.80 / 30 boards (Design file: Circuit Board/twister_board.zip)

American Precision Prototyping
http://www.approto.com/

3 Guide Posts - SLA Accura 55 Plastic, $101.80 / 10 units (Design file: Stereolithography/guide_posts.stl)

4 Tetrode Clip Holder - SLA Accura 55 Plastic, $77.00 / 10 units (Design file: Stereolithography/clip_holder.stl)

2. Standard Parts

SparkFun Electronics
http://www.sparkfun.com/

1 47x Break Away Headers - Straight, $2.50 / pack of 40 [PRT-00116]
2 2x Rotary Potentiometer - 10k Ohm, Linear, $0.95 ea. [COM-09939]
3 2x Black Metal Knob - 14x24mm, $1.50 ea. [COM-10002]
4 1x Basic 16x2 Character LCD - White on Black 5V, $15.95 ea. [LCD-00709]
5 Assorted resistors (240, 330, 900, 10K), $10.95 / kit [COM-09258]
6 1x Arduino Uno, $29.95 ea. [DEV-11021 or DEV-11224]
7 1x Wall Adapter Power Supply - 9VDC 650mA, $5.95 ea. [TOL-00298]
8 2x Mini Photocell, $1.50 ea. [SEN-09088]
9 1x Buzzer - PC Mount, $1.95 ea. [COM-07950]
10 1x Voltage Regulator - Adjustable LM1117 SMD, $1.50 ea. [COM-00595]
11 1x Momentary Push Button Switch - 12 mm Square, $0.50 ea. [COM-09190]
12 1x Mini Push Button Switch - Tall, $0.50 ea. [COM-08605]
13 1x Trimpot 10K with Knob, $0.95 ea. [COM-09806]
14 1x Electrolytic Decoupling Capacitor - 100 uF/25V, $0.35 ea. [COM-00096]
15 1x Electrolytic Decoupling Capacitor - 10uF/25V, $0.45 ea. [COM-00523]
16 1x Capacitor Ceramic 0.1uF, $0.25 ea. [COM-08375]
17 1x Basic LED - 5mm Green, $0.35 ea. [COM-09592]
18 1x Diode Rectifier - 1A 50 V, $0.15 ea. [COM-08589]
19 1x Servo - Large Full Rotation, $13.95 ea. [ROB-09347]

McMaster-Carr:
http://www.mcmaster.com/

20 4x M5 Stainless Steel Socket Head Cap Screw - 40mm, $6.27 / pack of 25 [91292A194]
21 4x M5 Stainless Steel Hex Nut, $3.94 / pack of 50 [94150A340]
22 4x M3 Stainless Steel Socket Head Cap Screw - 16mm, $3.24 / pack of 100 [91292A115]
23 4x M3 Stainless Steel Hex Nut, $4.90 / pack of 100 [91828A211]
24 4x M5 Aluminum Unthreaded Spacer - 25 mm, $1.48 ea. [94669A065]

Fine Science Tools
http://www.finescience.com/

25 1x Bulldog Serrefine Straight - 50 mm, $44.00 ea. [18050-50]

3. Tools and Supplies

PanaVise
http://www.panavise.com/
1 PV Jr. Mini-Vise, $27.99 ea. [201]

DigiKey
2 Weller Digital 85W Soldering Station, $330.00 ea. [WD1001-ND]

VWR
http://vwrsp.com/
3 General-Purpose Laboratory Labeling Tape - 1", $35.04 / pack of 6 [89097]

Amazon
http://www.amazon.com/
4 ZAP 5 Min Z-Poxy - 4 oz, $9.19 ea.

SparkFun
5 Tweezers - Straight, $2.95 ea. [TOL-09226]
6 Solder Lead Free - 100-gram Spool, $7.95 / spool [TOL-09325]
7 Diagonal Cutters, $1.95 ea. [TOL-08794]
8 Digital Multimeter, $14.95 ea. [TOL-09141]
9 USB cable