AliThe cost of the pump was evaluated to assess the design’s feasibility. The costs of the microcontroller, motor driver and power supply were not included in the analysis as they will still be needed regardless of the pump selected.
| Component | Quantity | Unit Cost (£) | Subtotal (£) |
| Casing | 0.132kg | 19.5/kg | 2.57 |
| Rotor | 0.012kg | 19.5/kg | 0.234 |
| NEMA 17 Motor | 1 | 10.5 | 10.5 |
| Tubing | 1 m | 1.40/m | 1.40 |
| Bearing | 3 | 0.49 | 1.47 |
| M3 bolt | 4 | 0.05 | 0.20 |
| M8 bolt | 3 | 0.05 | 0.15 |
| M8 Nut | 3 | 0.08 | 0.24 |
| Total | £16.76 |
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