TABLE 2.
Bill of Materials of an EMERGE module.
| Part | Quantity | Method | Price unit/line (€) |
|---|---|---|---|
| Male connector | 1 | 3D printed | 2.8 a |
| Female connector | 3 | 3D printed | 1.7/5.2 a |
| Whasher | 2 | 3D printed | 0.03 b |
| Nut holder | 1 | 3D printed | 0.03 b |
| PCBs | 4 | PCB order | 1.4/5.7 |
| Magnets ø12 × 3 mm | 16 | Off-the-shelf | 0.4/7.0 |
| Motor (AX-12A or AX-18A) | 1 | Off-the-shelf | 40 or 70 |
| Spring pins | 16 | Off-the-shelf | 0.4/6.7 |
| FP04-F2 bracket | 1 | Off-the-shelf | 0.65 |
| FP04-F2 bracket | 1 | Off-the-shelf | 0.65 |
| Bushing hub and washer | 1 | Off-the-shelf | 0.73 |
| Cables (60 and 140 mm) | 2 | Off-the-shelf | 1.3/2.6 |
| Screw and nuts | Several | Off-the-shelf | 1.6 |
| Stickers | 4 | Printed | 0.01/0.04 |
| Total | 65€ (AX-12A) or 100€ (AX-18A) |
a
These parts were manufactured using SLS by a 3D printing service. Their cost could be reduced by printing them in a FDM 3D printer.
b
These parts were manufactured using FDM in our workshop. They can be printed in less than 5 min and their cost were calculated based on the amount of PLA filament needed to 3D print them.