|
ITEM |
UNIT COST ($) |
QTY (ea) |
COST ($) |
COMMENTS |
|
Actuators |
||||
|
Door lock
motor |
10 |
1 |
10 |
|
|
Maxon
motor |
0 |
2 |
0 |
donated |
|
Chips |
||||
|
Op amp
LM324 |
0 |
4 |
0 |
from lab
kit |
|
Schmitt
trigger 74HC14 |
0 |
2 |
0 |
from lab
kit |
|
L293B |
0 |
1 |
0 |
from lab
kit |
|
Voltage
regulator LM7805 |
1 |
2 |
2 |
|
|
TLE 5206
kit |
11 |
2 |
22 |
|
|
Electronic
components |
||||
|
Potentiometer
(Small) |
0 |
1 |
0 |
from lab
kit |
|
Capacitors |
0 |
4 |
0 |
from lab
kit |
|
Resistors |
0 |
30 |
0 |
from lab
kit |
|
Chip
socket |
1 |
6 |
6 |
|
|
IR sensor |
0 |
2 |
0 |
from lab
kit |
|
Molex
male |
0.3 |
12 |
3.6 |
|
|
Molex
female |
0.3 |
12 |
3.6 |
|
|
PCB board |
1.4 |
6 |
8.4 |
|
|
PCB board
leg |
0.35 |
12 |
4.2 |
|
|
Tape
sensor QRB1143 |
1 |
4 |
4 |
|
|
|
2 |
3 |
6 |
|
|
|
11 |
3 |
33 |
|
|
Solder |
0.1/ft |
3 |
0.3 |
|
|
Wire |
0.1/ft |
10 |
1 |
|
|
Mechanical
components |
||||
|
Spider coupling |
3 |
2 |
6 |
|
|
Wheels |
1.3 |
2 |
2.6 |
|
|
Ball
bearing |
4.5 |
4 |
18 |
|
|
Ball
transfer |
3.7 |
1 |
3.7 |
|
|
Shaft |
2 |
2 |
4 |
|
|
Heat sink |
1 |
1 |
1 |
|
|
Frame |
||||
|
Masonite
1/4'' (2ftx3ft) |
8.17 |
1 |
8.17 |
|
|
Total cost |
|
|
147.57 |
|