🛒 Bill of Materials
Total Cost
Note
Doesn’t include cost of 3D printing, tools, shipping and taxes.
Price |
BRL |
EUR |
USD |
|---|---|---|---|
Structural Components |
~R$2103.18 |
~€458.66 |
~$1064.58 |
Electrical System |
~R$902.4 |
~€406.47 |
~$200.81 |
Locomotion System |
~R$2834.46 |
~€330.36 |
~$381.73 |
Total |
~R$5840.04 |
~€1195.49 |
~$1647.12 |
Structural Components
Part |
Amount |
Unit Cost (BRL) |
Buy (R$) |
Unit Cost (EUR) |
Buy (€) |
Unit Cost (USD) |
Buy ($) |
|---|---|---|---|---|---|---|---|
40×40 T-Slot Aluminum Extrusion 600 mm |
2 |
~R$75.60 |
~€8.58 |
~$33.60 |
|||
40×40 T-Slot Aluminum Extrusion 300 mm |
8 |
~R$37.80 |
~€4.29 |
~$16.80 |
|||
40×40 T-Slot Aluminum Extrusion 220 mm |
15 |
~R$27.72 |
~€3.37 |
~$12.32 |
|||
40×40 T-Slot Aluminum Extrusion 180 mm |
4 |
~R$22.68 |
~€2.76 |
~$10.08 |
|||
40×40 T-Slot Aluminum Extrusion 75 mm |
2 |
~R$10.08 |
~€1.15 |
~$4.20 |
|||
L-Bracket |
38 |
~R$4.77 |
~€1.10 |
~$5.14 |
|||
Profile End Cap |
18 |
~R$2.47 |
~€0.47 |
~$0.76 |
|||
Square Connector Plate 40×40 |
3 |
~R$10.95 |
~€2.57 |
~$4.17 |
|||
L Connector Plate 40×40 |
2 |
~R$21.27 |
~€3.82 |
~$6.21 |
|||
T Connector Plate 40×40 |
1 |
~R$13.15 |
~€4.49 |
~$7.29 |
|||
M6 x 12 mm Countersunk Allen Screw |
160 |
~R$0.86 |
~€0.34 |
~$0.63 |
|||
M6 x 20 mm Countersunk Allen Screw |
4 |
~R$0.86 |
~€0.33 |
~$0.85 |
|||
M4 x 20 mm Countersunk Allen Screw |
12 |
~R$0.32 |
~€0.32 |
~$0.52 |
|||
M4 x 12 mm Countersunk Allen Screw |
18 |
~R$0.11 |
~€0.32 |
~$0.69 |
|||
M6 x 35 mm Motor Mount Screw |
16 |
~R$1.72 |
~€0.39 |
~$0.63 |
|||
M6 T-Nut |
130 |
~R$2.08 |
~€0.50 |
~$1.19 |
|||
M6 Hex Nut |
34 |
~R$0.57 |
~€0.30 |
~$0.14 |
|||
M4 Hex Nut |
56 |
~R$0.57 |
~€0.30 |
~$0.19 |
|||
Copper Sheet 30 × 20 cm |
2 |
~R$29.70 |
~€11.65 |
~$5.20 |
|||
Acrylic Sheet 1 m × 1.3 m |
1 |
~R$253.16 |
~€86.33 |
~$74.80 |
Electrical System
Part |
Amount |
Unit Cost (BRL) |
Buy (R$) |
Unit Cost (EUR) |
Buy (€) |
Unit Cost (USD) |
Buy ($) |
|---|---|---|---|---|---|---|---|
Hoverboard Battery (36V) |
4 |
~R$139.30 |
~€89.99 |
~$44.99 |
|||
Ferrule Terminals (Wire Ferrules) |
20 |
~R$14.69 |
~€0.086 |
~$0.014 |
|||
20A Switch |
3 |
~R$7.50 |
~€5.6 |
~$3.15 |
|||
Emergency Stop Button (Mushroom Type) |
1 |
~R$28.90 |
~€27.99 |
~$11.12 |
Important
Use a 2 mm² flexible cable (approximately AWG 14) for power distribution.
Locomotion System
Part |
Amount |
Unit Cost (BRL) |
Buy (R$) |
Unit Cost (EUR) |
Buy (€) |
Unit Cost (USD) |
Buy ($) |
|---|---|---|---|---|---|---|---|
NEMA 23 Stepper Motor (30 kgf·cm) |
4 |
~R$215.00 |
~€21.24 |
~$28.70 |
|||
TB6600 Stepper Driver |
4 |
~R$79.90 |
~€11.95 |
~$20.00 |
|||
MPU-9250 IMU with BMP280 (6-pin) |
2 |
~R$127.43 |
~€22.89 |
~$23.38 |
|||
100mm Mecanum Wheel |
1 |
~R$1400.00 |
~€151.82 |
~$140.17 |
Note
We opted to manufacture the wheels through a local supplier, as this proved to be significantly more cost-effective than purchasing them online. For reference, links to similar wheels available on the market are provided above.
3D Printed Parts
The following table lists all required 3D printed components.
Module |
Part |
Quantity |
STL Link |
|---|---|---|---|
Structural |
Door Handle |
1 |
|
Structural |
Door Handle Magnet |
1 |
|
Structural |
Side Acrylic Magnet |
6 |
|
Structural |
Side Acrylic Magnet Mount |
6 |
|
Battery |
Battery Case Lower |
4 |
|
Battery |
Battery Case Upper |
4 |
|
Battery |
Battery Case Female Socket Mount |
4 |
|
Battery |
Battery Hotswap Connector |
2 |
|
Battery |
Battery Hotswap Male Connector |
4 |
|
Drivers |
Arduino Board Mount |
1 |
|
Drivers |
Driver Board Left Mount |
1 |
|
Drivers |
Driver Board Right Mount |
1 |
|
Drivers |
PCB’s Support |
1 |
|
Drivers |
Drivers Mount |
4 |
|
Motors |
Front Motor Mount |
2 |
|
Motors |
Rear Motor Mount Left |
1 |
|
Motors |
Rear Motor Mount Right |
1 |
|
Emergency |
Emergency Stop Button Mount |
1 |