Budget and Materials

Item Cost Where we got it
2" PVC pipe (1) $4.65 Home Depot
1" PVC pipe (1) $1.98 Home Depot
3" foam brush (1) $0.97 Home Depot
2" foam brush (1) $0.77 Home Depot
1" foam brush (1) $0.67 Home Depot
3/4" diameter compression spring (1) $4.38 Home Depot
Sandpaper (fine and medium grit) $7.94 Home Depot
Corner braces (9) $20.16 Home Depot
Hinges (6) $11.82 Home Depot
Polyurethane (1 tub) $11.84 Home Depot
5/16" dowels (16) $14.88 Home Depot
3/8" 4'x8' Smart Siding (1 sheet) $29.71 Home Depot
Latch (1) $3.47 Home Depot
Stepper motors (3) [product] $14.85 + $8.71 shipping adafruit.com
Arduino Unos (2) [product] $49.90 adafruit.com
Sheet of Velostat (1) $8
STUFF WE GOT FOR FREE
IR distance sensors (3) [datasheet] ~$39 value
IR reflectance sensors (4) [datasheet] ~$3 value
Mini protoboards (4) ~$6 value
9V power supply (1) ~$10 value
Addressable LEDs (15) a large strip is ~$20 value
LEDs (2) ~$0.30 value
Wires, solder, and electrical tape ~$12 value??? we have no clue
Hot glue ~$5 value
Wood glue ~$4 value
PROTOTYPING MATERIALS
Sheets of hardboard (5) $15
Screws (2) $2
Switches (12) $12
Lighthouse-shaped bird house $13.50
3/4" PVC pipe (1) $1.57
2" flat brush $1.15
TOTAL about $320