Table 4.
Electrical bill of materials summary.
| Component | Qty | Cost per unit (USD) |
Total cost (USD) |
|---|---|---|---|
| Digital stepper driver | 1 | 22.35 | 22.45 |
| 100W 24V power supply | 1 | 11.03 | 11.03 |
| Nema 23 stepper motor & Gearbox | 1 | 58.43 | 58.43 |
| Arduino Mega 2560 | 1 | 38.00 | 38.00 |
| 12V to 5V buck converter | 1 | 15.99 | 15.99 |
| 18 AWG 3-Prong power cable | 1 | 14.99 | 14.99 |
| FUTEKLoad cell | 1 | 798.00 | 798.00 |
| FUTEKSignal conditioner | 2 | 1500.00 | 3000.00 |
| FUTEKTorque sensor | 1 | 3255.00 | 3255.00 |
| 3.5 mm LED’s | 5 | 0.30 | 1.50 |
| Tactile button switch | 2 | 0.38 | 0.76 |
| 10k resistors | 5 | 0.10 | 0.50 |
| Total | $7216.65 |