37 lines
1.7 KiB
Markdown
37 lines
1.7 KiB
Markdown
# Bill of Materials (BOM)
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## Mechanics
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| Name | Qty | Description | Comments | Suggested link |
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|------|-----|--------------|-----------|----------------|
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| Steel ball | 12 | Ø1.25 mm (0.05") | Precision G10 or better. Can be sourced from small ball bearings | |
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| PU stretch cord | 1 m | Ø1mm | e.g. "Stretch Magic" or "Magic String" | |
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| Neodym Cylinder Magnet | 70 | Ø3mm h=4 mm | | |
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| Brass Pipe | 1 m | OD=Ø2mm ID=Ø1 mm | | |
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| M2 Screw | 12 | M2×12 mm, Countersunk | | |
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| M3 Grub Screw | 6 | M3×4 | | |
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## Electronics
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| Name | Qty | Description | Comments | Suggested link |
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|------|-----|--------------|-----------|----------------|
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| DC-DC Step Down Module | 1 | 4.75–23 V Step-Down Buck Converter | | |
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| (1N5819) OR (PMEG4010) | 1 | Diode (through-hole or SMD) | | |
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| Raspberry Pi Pico 2 | 1 | Microcontroller board | | |
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| MT6835 Magnetic Encoder Module | 3 | Magnetic encoder | | |
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| TB6612FNG Driver | 3 | | | |
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| 470 µF Electrolytic Capacitor | 3 | > 100 µF | anything > 100µF will work well | |
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| 10 µF Ceramic Capacitor 0603 | 3 | Optional | | |
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| 4.7 k Resistor 0603 | 2 | Optional | | |
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| 2 Pin Power Header | 1 | 7.5 mm pitch | | |
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| 4 Pin Header | 4 | 2.5 mm pitch | | |
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| 8 Pin Header | 1 | 2.0 mm pitch | | |
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| NEMA 17 Stepper Motor | 3 | Body ≤ 38 mm | Body length <= 38mm | |
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## 3D Printing
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| Name | Qty | Description | Comments | Suggested link |
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|------|-----|--------------|-----------|----------------|
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| WireFlexureMount | 3 | | 0.4 mm+ nozzle may require post-processing | |
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| RubberBandCollet | 3 | | 0.4 mm+ nozzle may require post-processing | |
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| BallJointMount | 3 | | 0.4 mm+ nozzle may require post-processing | |
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| Motor Mount | 3 | | | |
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| End Effector | 1 | | | |
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| Base Block | 1 | | | |
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