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16. Application & Implication, Project Development

Material Costs

  • Our Fablab had all the materials we needed. However I work at our fablab, so I know where we purchased our supplies from.
  • The official currency exchange rate is US$1 = TT$6.8 (Trinidad & Tobago Dollar). However when importing with shipping and customs and duty and taxes we use US$1 = TT$10 as an approximate true landed cost.
  • The prices listed here are the prices we paid when we last restocked on these items, and reflect any bulk pricing or discounts applied at the time.
  • The prices listed are for the total price for the quantities used.

MAZE Materials

Qty Description Price Link Notes
2 4’ x 8’ sheet MDF (6mm thick) $140 TT Ordered by sheet, local hardware
1/2 roll 3d Filament $11.50 US Matterhackers used less than a half roll

Total for Maze: TT$140 + US$11.50

Electronics Materials

Qty Description Price Link Notes
1 Single side copper laminate PCB Board 7cm x 10cm $1.25 US Amazon Purchased as a 10 pack
1 Attiny 1614 $0.46 US Digikey Order of 50
1 LED GREEN CLEAR 1206 SMD $0.08 US Digikey Order of 100
1 tactile switch SMD B3SN-3112P $0.87 US Digikey Order of 50
1 1 uF Capacitor $0.05 US Digikey Order of 100
2 female CONN HDR 4POS 0.1 TIN SMD vertical $1.18 US Digikey Order of 10
2 1 k ohm Resistor $0.06 US Digikey Order of 1000
9 pins CONN HEADER SMD horizontal 2.54MM $0.95 US Digikey seperated (3pins) and (6pins) from a 36 pin item (Order of 5)
8 wires JUMPER WIRE M/F 5.91” 1PC $0.80 US Digikey seperated 8 strands from 40 strand item (order of 5)
2 wires JUMPER WIRE F/F 5.91” 1PC $0.20 US Digikey seperated 2 strands from 40 strand item (order of 5)
1 0.96 inch OLED IIC Display Module $2.30 US Amazon Pack of 10
1 HC-SR04 Ultrasonic Module $1.80 US Amazon Pack of 5
1 18650 Battery ~$5.00 US taken from my personal flashlight

Total for Electronics: US $15


Last update: July 7, 2025