# Bill of Materials (BOM)

## Electronic Components

| Article | Description | Qty | Price | Link |
|---------|-------------|:---:|-------|------|
| ST-3215-C018 | Feetech Servo Motor | 1 | ~$29.00 | [Feetech](https://www.feetechrc.com/525603.html) |
| | Bus Servo Adapter Board | 1 | ~$11.00 | [Waveshare](https://www.waveshare.com/bus-servo-adapter-a.htm) |

## Bearings

| Article | Description | Qty | Price | Link |
|---------|-------------|:---:|-------|------|
| MF106ZZ | Bearing 6x10x3 mm | 2 | ~$9.99 (10pcs) | [Amazon](https://www.amazon.com/uxcell-MF106ZZ-6x10x3mm-Shielded-Bearings/dp/B08H289LLQ) |

## Rods

| Article | Description | Qty | Price | Link |
|---------|-------------|:---:|-------|------|
| | Carbon Fiber Tube 6x4x200mm | 1 | ~$5.29 (2pcs) | [Amazon](https://www.amazon.com/MECCANIXITY-Carbon-Pultruded-Airplane-Quadcopter/dp/B0CZDCW2NL) |
| | Carbon Fiber Tube 6x4x200mm | 1 | ~$6.99 (3pcs) | [Amazon](https://www.amazon.com/MECCANIXITY-Surface-Airplane-Multicopter-Quadcopter/dp/B0CZDFS38K) |
| | Round Aluminium Tube 6x3x250 mm | 1 | ~$5.79 (2pcs) | [Amazon](https://www.amazon.com/Aluminum-Seamless-Straight-Industry-Decoration/dp/B0DG28M691) |
| | Round Aluminium Tube 6x4x250 mm | 1 | ~$9.39 (4pcs) | [Amazon](https://www.amazon.com/uxcell-Aluminum-Round-Length-Tubing/dp/B0BFF95FWJ) |
| | Round Aluminium Rod D6x300 mm | 1 | ~$11.99 (10pcs) | [Amazon](https://www.amazon.com/Aluminum-Diameter-Helicopter-Precision-Machining/dp/B0C495BFV2) |
| | Round Steel Rod D6x125 mm | 1 | ~$11.89 (5pcs) | [Amazon](https://www.amazon.com/SKYPRO-Stainless-Diameter-Industry-Working/dp/B0CLCSWSJ9) |
| | Round Steel Rod D6x125 mm | 2 | ~$13.67 (1pcs) | [Amazon](https://www.amazon.com/Stainless-Diameter-2mm-14mm-Linear-Ground/dp/B0F1ZYYZ89) |

*You need just 1 type from this list, 2pcs with length 125mm*

## 3D-Printed Parts

| Part Number | Description | Qty | Est. Price |
|-------------|-------------|:---:|------------|
| RB9.01.062.010 | Main frame | 1 | ~$5.00 |
| RB9.01.062.020 | Clamp | 2 | ~$3.00 |
| RB9.01.062.030 | Gear rack | 2 | ~$1.00 |
| RB9.01.062.040 | Gear | 1 | ~$0.50 |
| RB9.01.060.074 | Camera holder | 1 | ~$2.00 |
| RB9.01.060.080 | Holder | 1 | ~$1.00 |
| RB9.01.060.090 | Camera Spacer | 1 | ~$0.50 |

*3D printing estimates based on ~$0.05/g PLA filament + electricity costs*

## Fasteners

| Article | Description | Qty | Price | Link |
|---------|-------------|:---:|-------|------|
| | Screw DIN 7991 M4x8 | 2 | ~$6.99 (100pcs) | [Amazon](https://www.amazon.com/Socket-Countersunk-Stainless-Screwdriver-Included/dp/B0DWZVYSMZ) |
| | Screw DIN 912 M2x8 | 2 | ~$6.79 (120pcs) | [Amazon](https://www.amazon.com/TOP-VIGOR-Stainless-Replacement-Motorcycle-Repairment/dp/B0D5CHC6GR) |
| | Nut DIN 934 M2 | 4 | ~$5.99 (100pcs) | [Amazon](https://www.amazon.com/QXSKSLH-Metric-Stainless-Hex-Nuts-100pcs/dp/B0CSWRN19Q) |
| | Set Screw DIN 913 M3x4 | 4 | ~$6.99 (100pcs) | [Amazon](https://www.amazon.com/Socket-M3-0-5-Metric-14-9-45H-Quantity/dp/B07CPNB1WP) |

---

## Cost Summary

### Follower Gripper

| Category | Items | Est. Cost |
|----------|-------|-----------|
| Electronics | Servo ST-3215 + Adapter | ~$40.00 |
| Bearings | MF106ZZ (2) | ~$2.00* |
| Rods | D6x125 (2) | ~$1.00* |
| 3D-Printed Parts | 8 parts | ~$12.00 |
| Fasteners | Various screws & nuts | ~$3.00* |
| **Total** | | **~$62.00** |

### Full Pack Prices (with extras)

| Category | Pack Price |
|----------|------------|
| Electronics | ~$40.00 |
| Bearings | ~$2.00 |
| Rods | ~$2.00 |
| 3D-Printed Parts | ~$12.00 |
| Fasteners | ~$27.00 |
| **Total** | **~$83.00** |

*\* Pro-rated from bulk pack prices*

---

## Notes

- **Prices** are approximate and based on Amazon/supplier listings as of January 2026
- **Bulk savings**: Fasteners and bearings come in packs, providing extras for future builds
- **3D printing costs** assume home printing with PLA (~200-300g total material)
- **Shipping** not included in estimates
- Consider ordering from single suppliers to reduce shipping costs