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Part#Bulk CostPer ItemTotalLink# printedMetersGramsPLA ($/oz)PLA ($/gm)
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Upper Chassis (3d printed)1$1.41$1.41$1.41github116.9450.6$0.68$0.03
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Lower Chassis (3d printed)1$1.28$1.28$1.28github115.3845.86$0.68$0.03
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Standoffs (3d printed)4$1.60$0.06$0.26github2519.2557.43$0.68$0.03
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Battery compartment cap (3d printed)1$0.46$0.46$0.46github15.5216.47$0.68$0.03
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Motor Mounts (3d printed)2$1.72$0.14$0.29github1220.6261.52$0.68$0.03
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Sonar Mounts (3d printed)1$0.85$0.07$0.07github1210.2230.46$0.68$0.03
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IR Mounts (3d printed)1$1.19$0.07$0.07github1814.3242.75$0.68$0.03
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This sample list is for Arduino Uno controller
LinkCost
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Sharp IR Sensor1$11.96$0.12$0.12adafruitFor Micro:BIT use these linksAmazon$27.99
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TB6612 Motor Driver1$5.56$0.06$0.06adafruit Expansion BoardDFRobot$29.90
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9V battery1$16.52$1.38$1.38Amazon 9V Battery Pack with leadsAmazon$7.99
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9V battery holder with slide switch [8 pcs]1$9.99$1.25$1.25AmazonFor Circuit Playground Express use this linkAdafruit$29.95
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10kΩ resistor (kit of 1000 resistors)1$10.99$0.01$0.01Amazon Battery PackAdafruit$2.95
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220Ω or 330Ω resistor (kit of 1000 resistors)4$10.99$0.01$0.04AmazonFor Raspberry Pi Pico W use this linkAmazon$27.99
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LEDS (red, blue, green, yellow) [kit of 450 LEDS]4$12.00$0.03$0.11Amazon Battery PackAmazon$8.99
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Caster Wheels 1/2” (16 pk of roller ball wheels)2$16.00$1.00$2.00Amazon 3V sonar
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HC-SR04 Sonar Ultrasonic Sensor Distance Module, 5 pcs)1$9.00$1.80$1.80AmazonFor Raspberry PI (coming soon)
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Various Wires (Male-Male, Male-Female) [Assorted 120 pcs]20$6.98$0.06$1.16Amazon
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Toy Motors (8 pcs) 8PCS DC Electric Gear Motor TT DC 3V-6V 2$12.00$1.50$3.00AmazonFor ESP32 (coming soon)
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Arduino Uno Microcontroller1$16.99$16.99$16.99Amazon
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Photoresistor1$7.39$0.07$0.07Amazon
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Mini Breadboard (pk of 48)2$19.99$0.42$0.83Amazon
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Toy Tire Wheels (2.6 in diam)(pack of 12)2$16.99$1.42$2.83Amazon
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6mm panhead screws (M3x6mm) [30 pcs]2$7.49$0.12$0.25Amazon
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8 mm panhead screws (M3x8mm) [100 pcs]10$7.50$0.08$0.75Amazon
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25 mm panhead screws (M3x25mm) [60 pcs]4$8.49$0.14$0.57Amazon
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Buzzer (active or passive) (pk of 20)1$9.50$0.48$0.48Amazon
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9V battery holder leads (MicroBit)Amazon
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9V battery holder DC plug (Arduino, RPI)Amazon
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4AA battery holder with leads (MicroBit)Amazon
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6AA battery holder with leads (MicroBit)Amazon
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5AA battery holder with leads (MicroBit)Amazon
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4AA battery holder with DC plug (CPE)Amazon
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TOTAL$37.53
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