Wednesday, January 24, 2018

Spring 2018, Week 1: Finalizing BOMs

January 24, 2018

Coming back from Winter Break, the first order of business for the entire Small Scale Superway team was to finalize the Bill of Materials for our respective sub-teams. The Track and Manufacturing team searched the shop for materials to lower the final cost, but could not find useful parts. As such, the final BOM came out to $1447.11. This can be seen in Table 1.

Supplier (I.E., Amazon..)
Description
Quantity
Unit Cost (include taxes)
Shipping Cost
Total
Amazon
Filament 1.75mm 1 kg
10
$ 24.02
$ -
$ 240.20
McMaster
Steel Phillips Rounded Head Screw (50mm/2 inch) - 25 per package
5
$ 7.65

$ 38.24
McMaster
Zinc-Plated Steel Hex Nut - 100 per package
4
$2.94

$ 11.76
McMaster
Steel Narrow-Base Weld Nut (50)
2
$10.38

$ 20.76
McMaster
Rotating-Eye Padlockable Hasp
1
$12.02

$ 12.02
McMaster
Unfinished Brass Surface-Mount Hinge with Holes
1
$1.56

$ 1.56
McMaster
Steel Hex Nut 5/16"-18 Thread Size
1
$4.57

$ 4.57
McMaster
Steel Phillips Flat Head Screws - 100
3
$ 7.87

$ 23.60
Midwest Steel and Aluminum
6061 Flat Aluminum Bar (0.25 x 1 x 48)
80
$ 4.15
$ 87.17
$ 419.29
Home Depot
12 in. x 48 in. Tube for Concrete
3
$ 17.45

$ 52.34
Home Depot
60 lb bag Sakrete Concrete Mix (Yields 0.45 cubic feet)
14
$ 3.24

$ 45.43
Gorilla Metals
Square Tub 1 x 1 1 0.065 (per ft)
80
$ 1.37

$ 109.25
Gorilla Metals
Square Tube 1.25 x 1.25 x 0.065 (per ft)
40
$ 2.19

$ 87.40
Gorilla Metals
Band Sawing Labor
1
$ 40.00

$ 40.00
Midwest Steel and Aluminum
Steel Sheets 16 gauge 4 x 4
22
$ 0.96
$ 18.62
$ 39.77
Shop
Plywood



$ -
Harbor Freight
Ring Roller
1
$ 76.46

$ 76.46
Midwest Steel and Aluminum
Hot Roll Steel Flat Bar
80
$ 0.99
$ 43.00
$ 122.53
McMaster
Grade 8 Steel, 5/16"-18 Thread Size, 2" Long, Fully Threaded (10 per pack)
10
$ 9.66

$ 96.58
McMaster
High-Strength Steel Hex Nut - 100
1
$ 5.36

$ 5.36










Total
$ 1,447.11



Table 1: Small Scale Track and Manufacturing BOM


For the rest of the meeting, our team is preparing for the Spartan Superway Lightning talks. 

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