Skip to content
VentCU
VentCU
Overview
Contact
Resources
The Design
Share
Explore

Old Bill of Materials

Overview

The Bill of Materials below specifies components needed for both Design A and Design B. Almost all components can be purchased from Digi-Key or McMaster-Carr. However, if a significantly cheaper source was found, Digi-Key/McMaster-Carr has been listed under the 'Alternative Sources' columns. We only selected only parts which had approximately 100 items or more in stock (though most have thousands) and were widely available from several sources.
Total Number of Parts:
Design A:
38
⁠
unique parts
Design B:
30
⁠
unique parts

Tools Required for Construction: Allen key set, Scissors, Soldering Iron
Hours Needed for Construction:
Design A: ~1.5 hours
Design B: ~2.5 hours

Total Cost:
Design A:
$631.68
⁠
Design B:
$483.02
⁠

Old BOM, Variant A
Type
Component
Source
Part Number
Quantity in Stock
Quantity
Unit Price
Cumulative Price
Link
Alternative Sources (quantity in stock)
Electrical
12
Power Distribution
1528-1520-ND
193
2
$1.95
$3.90
​
Power Switch
360-1897-ND‎
2914
1
$4.21
$4.21
​
Limit Switch
LXW5-11N1
251
2
$3.40
$6.80
Digi-Key (251)
Pressure Transducer
2SMPP03
6593
1
$7.66
$7.66
​
Alarm, Piezo Transducer
102-1617-ND‎
4280
1
$7.95
$7.95
​
12V Power Supply
N/A
100
1
$12.99
$12.99
​
Raspberry Pi and Screen Enclosure
1690-1008-ND
121
1
$17.00
$17.00
​
Pi-EzConnect Terminal Block Breakout HAT
2711
58
1
$29.95
$29.95
Digikey(329)
Raspberry Pi 4B
4292
1
1
$35.00
$35.00
Digikey (3951)
Stepper Motor Controller
2183-3140-ND
93
1
$51.00
$51.00
​
Raspberry Pi Touchscreen, 7"
49Y1712
15799
1
$60.00
$60.00
Digi-Key (788)
Stepper Motor with Encoder
STP-MTR-23079E
98
1
$123.00
$123.00
​
2
25
80/20 #8-32 Button Head Screw 0.375" and T-Nut
3483
9999
10
$0.35
$3.50
​
80/20 1/4"-20 Button Head Screw 0.500" and T-Nut
3393
9999
10
$0.40
$4.00
80/20 (9999)
Door Handle
14895A42
9999
2
$2.05
$4.10
​
NEMA 23 Steel LBracket
2258
172
1
$4.95
$4.95
​
1/2" ID Routing Clamp QTY 50
9434T17
9999
1
$5.77
$5.77
​
8" Zip Tie QTY 100
80005K11
999
1
$6.00
$6.00
​
80/20 (1020) Extrusion 10.5"
1020
9999
1
$6.04
$6.04
80/20 (9999)
Steel Eyebolt with Shoulder - for Lifting
3014T45
9999
2
$3.21
$6.42
​
No Flatten Rope-for Lifting, 3/16" Diameter (5 ft.)
3790T31
10000
1
$6.55
$6.55
​
1' T-Slot Antislip Cover
2828
9999
6
$1.15
$6.90
​
Power Switch Mounting Bracket
55205K21
9999
1
$7.14
$7.14
​
3" Extension Spring, 4.8lb-in (QTY 3)
3114T94
9999
1
$7.87
$7.87
​
T-Slot Plastic Handles (2062)
2062
9999
2
$4.20
$8.40
8020 (9999)
22T XL Acetal Timing Pulley
57105K21
9999
1
$8.59
$8.59
​
U-Bolt with Mounting Plate 3.5" C-C
3043T86
999
2
$4.33
$8.66
​
#8-32 Flared Thumb Screw
94567A330
9999
4
$2.24
$8.96
​
Mounted Pulley for Rope Guide
3071T7
999
1
$8.97
$8.97
⁠
https://www.mcmaster.com/catalog/126/1615
⁠
⁠
​
14" Zip Tie QTY 100
80005K13
9999
1
$9.67
$9.67
​
80/20 #10-32 T-Nut
3276
9999
66
$0.16
$10.56
​
L Bracket (QTY 25)
36-4337-ND
3146
2
$6.05
$12.10
80/20 (1010) Extrusion 3.25"
1010
9999
5
$2.64
$13.20
80/20 (9999)
#10-32 Button Head Screw 0.500"
3050
9999
66
$0.20
$13.20
​
80/20 (1010) Extrusion 15.5"
1010
9999
4
$5.51
$22.04
​
​
Pivot for Double 80/20 Rail
47065T192
9999
1
$22.25
$22.25
​
80/20 (1010) Extrusion 12"
1010
9999
9
$4.71
$42.39
80/20 (9999)
Materials & Tools
1
⁠
Old BOM, Variant B
⁠
Old Full BOM, All Variants
⁠


Next:
Next Steps
⁠
|
Overview
⁠
⁠


Want to print your doc?
This is not the way.
Try clicking the ··· in the right corner or using a keyboard shortcut (
CtrlP
) instead.