Bill of Materials
Bill of Materials
Bill of Materials
Item |
Rec Qty |
Materials |
Vendor |
Price (per item) |
Descr. |
Notes |
1 |
3 |
Creality Ender 3 Pro (3D printer) |
Creality |
$150 |
Will be used to create mold and rig. |
A large number of 3D printers is recommended due to the potentially high volume of prints. |
2 |
2 |
PLA filament 1.75kg |
Overture |
$18 |
Used in 3D printers. |
Any PLA filament will work fine. |
3 |
2 |
BNTECHGO 28 AWG Magnet Wire - Enameled Copper Wire - Enameled Magnet Winding Wire - 4 oz - 0.0122" Diameter 1 Spool Coil Red Temperature Rating 155℃ Widely Used for Transformers Inductors |
BNTECHGO |
$11.45 (0.02 cents per foot) |
Used in electromagnet. |
Thinner wire is recommended since less voltage will be required to generate a higher current. |
4 |
2 |
M6-1.0 x 35mm Socket Head Cap Screws, 12.9 Grade Alloy Steel, Allen Socket Drive, Black Oxide Finish, Machine Thread, 40 PCS |
Kongki |
$13 |
Used in making electromagnet. |
As long as the bolts are made of some sort of steel or iron they should be okay. |
5 |
2 |
Smooth-On Ecoflex 00-20 Super Soft Silicone Rubber - Pint Unit |
Smooth-On |
$38 |
Used in creating the tube-man. |
|
6 |
2 |
Smooth-On Dragon Skin 20 Mold Making Silicone Rubber - Trial Unit |
Smooth-On |
$38 |
Used in creating the tube-man. |
|
7 |
1 |
ELEGOO UNO Project Super Starter Kit |
ELEGOO |
$30 |
Programmable Microcontroller along with other useful electronics. |
This was selected due to having multiple necessary components (cables, breadboard, microcontroller) in one package. Jump wires and an UNO board are used in Figure 6. |
8 |
1 |
L298N Motor Driver |
Qunqi |
$7 |
Controls the strength and direction of current supplied. |
This is recommended since it can handle higher voltages than those that come (L293D) with project kits. This is used in Figure 6. |
9 |
1 |
Plastic Cups |
Comfy Package |
$8.49 |
An 80-pack of plastic cups. |
This was selected to help hold the silicone needed for the tube. |
10 |
1 |
Digital Scale |
Amazon Basics |
$10.70 |
A digital scale with an LCD display. Can weigh up to 11 pounds. |
This was selected to help measure the amount of silicone needed for the tube. |
11 |
1 |
12V DC Power Supply |
ABLEGRID |
$10.99 |
A 12V DC Power supply adapter. |
This was used to supply power to the Arduino and electromagnets. It can be used instead of 4 AAA batteries in Figure 6. |
12 |
2 |
CENTROPOWER 20 Pcs DC Male Plug Connector 12V 5A 2.1mm X 5.5mm DC Power Adapter Connector |
CENTROPOWER |
$8.59 |
Allows the 12V power supply to be connected to the motor driver with wire from the starter kit. |
|
13 |
1 |
Hillman #10-32 x 1/2-in Phillips-Drive Machine Screws (10-Count) |
Lowe’s |
$1.38 |
Important fasteners for assembling reverse mold seen in the technical drawings and paper. |
|
14 |
1 |
RHINOCATS 60 pcs Refrigerator Magnets, Magnets for Nail Clippers, Small Round Fridge Magnets, Tiny Magnet, Multi-Use for Office, Hobbies, Crafts and Science, Tiny Size: 5mm x 3mm(DxH) |
rhinocats |
$4.99 |
Is placed in the silicone tube to allow for electromagnetic attraction. |
|
15 |
4 |
Powermax 24-Count AAA Batteries, Ultra Long Lasting Alkaline Battery, 10-Year Shelf Life, Reclosable Packaging |
Powermax |
$6.15 |
AAA batteries that can be used as a power source. |
If the instructor decides to use batteries instead of the power source, this is what should be purchased. |
16 |
1 |
BHM-4A3 |
Twin Industries |
$3.52 |
The battery holder for the AAA batteries. |
This section is reproduced from our paper available online via ASEE
Heil-heintz, W. Y., & Wojcicki, J., & Trkov, M., & Xue, W., & Bakrania, S., & Jamison, C. S. E. (2024, June), BYOE: Wacky-Waving-Non-Inflatable-Arm-Flailing-Tube-Man for Teaching Soft Robotics Paper presented at 2024 ASEE Annual Conference & Exposition, Portland, Oregon. 10.18260/1-2--48438